Re: Taxiing before first flight. (long editorial)
Allan Farr <afarr@...>
I suggested a locking tailwheel about a year ago, but nobody seemed to think very much of the idea.
toggle quoted messageShow quoted text
Allan F
----- Original Message -----
From: David J. Gall To: Q-LIST@... Sent: Friday, 20 October 2006 19:27 Subject: RE: [Q-LIST] Taxiing before first flight. (long editorial) Mike, You are SOOOOO right! It bears repeating: > I would like to point out something I think people loose > sight of regarding the Jim-Bob 6-Pack: The bellcrank mod > allows the builder to reduce the pivot arc (travel) of the > tail wheel relative to the rudder travel. That makes the > plane much less susceptible to sudden swerves at high speed, > and thus easier to control during takeoff and landing. The > tail wheel springs also desensitize the tail wheel. Consider that a rudder can have twenty-five or more degrees of deflection before it stalls whereas a tailwheel will start to skid (analogous to airfoil stalling) at between three and seven degrees deflection depending on the type of tire. So you really NEED to have some ratio between the rudder deflection and the tailwheel deflection at any given rudder pedal deflection. A belcrank giving a 3:1 ratio of rudder to tailwheel deflection combined with some springs on the tailwheel to let it trail against load somewhat (giving an even higher effective ratio) might be about right to really desinsitize ("tame") the Q2, but you'd have to put up with a large turning radius at low speeds. Then, too, the ratios described above are mechanical ratios; there is a complicating aerodynamic component that I'm ignoring right now, due to the varying effectiveness of the rudder at varying airspeeds. What ratios are people using, Jim, Bob? Consider also that the main objective of the takeoff or landing run is to go STRAIGHT and you soon realize that the ideal place for the tailwheel is locked, dead straight. Many (most??) WWII fighters had locking tailwheels. The "reduced arc" you refer to, Mike, was essentially nil with directional control provided by rudder and differential brakes only. Of course, some steering capability must be available for low speed taxiing with the tailwheel unlocked.... David J. Gall > -----Original Message----- > From: Q-LIST@... [mailto:Q-LIST@...] > On Behalf Of Mike Perry > Sent: Thursday, October 19, 2006 8:30 PM > To: Q-LIST@... > Subject: Re: [Q-LIST] Taxiing before first flight. (long editorial) > > I would like to point out something I think people loose > sight of regarding the Jim-Bob 6-Pack: The bellcrank mod > allows the builder to reduce the pivot arc (travel) of the > tail wheel relative to the rudder travel. That makes the > plane much less susceptible to sudden swerves at high speed, > and thus easier to control during takeoff and landing. The > tail wheel springs also desensitize the tail wheel. > > (You could achieve the same thing using split cables and > changing the lengths of the control horns on the rudder and > tail wheel, but the bell crank is an easy place to change the > relative travel.) > > I understand the tail wheels of some WW II fighters had very > little travel, but I can't seem to document that right now. > My opinion is that tail draggers that land at high speeds > need tail wheels that are "desensitized" > with a reduced pivot arc and tail wheel springs. > > I understand the Q-2 plans from QAC used a tail wheel with a > wide pivot arc in order to negotiate tighter corners on > airports. This design worked OK on the Quickie, which lands > at a lower speed, but has been problematic on the Q-2 and > Q-200. The 6-Pack has full pivoting tail wheel and > differential brakes to allow you to negotiate tight corners, > and a reduced pivot arc and springs to desensitize the tail > wheel at high speeds. > > Jim, I think this is what you meant when you said: "With just > splitting the cables, Wes has no way to differentiate > (detune)the angle of the tail wheel from the rudder." I just > wanted to say it more clearly. > > Mike Perry > > At 06:33 PM 10/19/2006 +0000, Jim Patillo wrote: > > > >Fellas, > > > >I had the opportunity to high speed taxi Wes Isbergs' Q200 Saturday > >before his first flight and would like to share some info. > Even though > >he did a fair job of controlling the plane down the runway, > I found it > >very difficult to handle. I could not keep it straight either with > >rudder or his braking system or the combination. Wind was > about 12K - > >10-15 degrees off the nose. (Note: he has no bellcrank but has split > >the cables internally to rudder and tail wheel and has a > modified dual > >differential finger brake system). > >Guess he didn't buy the Jim/Bob Six Pack Mod concept. My immediate > >response to him was to park the plane before he got hurt and fix the > >problem! > > > >Now for the details. With just splitting the cables, Wes has > no way to > >differentiate (detune)the angle of the tail wheel from the > rudder. He's > >installed a modified dual finger brake that has a single stick that > >slides sideways to apply pressure to one master cylinder or > the other > >or both. That is not good because its way to sensitive and > hard to get > >positive results from known inputs. > >Further exacerabating the situation is his hand is on the > brake and not > >the throttle when taking off or landing. Not a good thing! How many > >serious tail draggers have anything other than toe brakes or heel > >brakes? Its just not natural to have finger brakes on a tail dragger > >and is to dangerous in my opinion. There are way to many > things going > >on to be doing this additional "dance". > > > >This leads me to a conclusion. The Q's with sixpack mods > installed are > >really quite tame, ask anyone who has them. I cannot for the > life of me > >understand why anyone would want to do anything different. > Yet we see > >it all the time. Most new Q pilots have a very difficult > time handling > >their planes initially and often crack them up or have an > incident even > >before the first flight. Because you didn't invent it, > doesn't mean you > >can't copy it! The situation with Wes; here's a very > intellignet fella > >sitting on a field with sucessuful Q's all around, yet he > chooses to do > >his own thing. Why? > >To much additional cost? To much additional labor? Doesn't > have a clear > >undrstanding of the problem? Doesn't know how to fix it - NOT! > >What? I do not understand this. > > > >This leads me to another conclusion. If Wes, sitting in the > middle of > >LVK with sucessful planes all aroud, chooses to go a > different route, > >what does that tell you about builders working on their own, > isolated > >and out of touch? I now understand why this is not so simple > and brace > >yourself fellas, we're in for more! > > > >These comments are in no way intended to bring heat on Wes but to > >simply make a couple of points as to why Q pilots are still > smacking up > >their planes. Hopefully this turns on the lights for someoen > who don't > >want to get hurt. > > > >Regards, > >Jim Patillo N46JP Q200 800 hours in type. So far, even in severe > >crosswinds, this plane has never deviated from the center line. > >Bingo! There's a reason.
|
|
Re: Taxiing before first flight. (long editorial)
David J. Gall
Mike,
You are SOOOOO right! It bears repeating: I would like to point out something I think people looseConsider that a rudder can have twenty-five or more degrees of deflection before it stalls whereas a tailwheel will start to skid (analogous to airfoil stalling) at between three and seven degrees deflection depending on the type of tire. So you really NEED to have some ratio between the rudder deflection and the tailwheel deflection at any given rudder pedal deflection. A belcrank giving a 3:1 ratio of rudder to tailwheel deflection combined with some springs on the tailwheel to let it trail against load somewhat (giving an even higher effective ratio) might be about right to really desinsitize ("tame") the Q2, but you'd have to put up with a large turning radius at low speeds. Then, too, the ratios described above are mechanical ratios; there is a complicating aerodynamic component that I'm ignoring right now, due to the varying effectiveness of the rudder at varying airspeeds. What ratios are people using, Jim, Bob? Consider also that the main objective of the takeoff or landing run is to go STRAIGHT and you soon realize that the ideal place for the tailwheel is locked, dead straight. Many (most??) WWII fighters had locking tailwheels. The "reduced arc" you refer to, Mike, was essentially nil with directional control provided by rudder and differential brakes only. Of course, some steering capability must be available for low speed taxiing with the tailwheel unlocked.... David J. Gall -----Original Message-----
|
|
Re: Taxiing before first flight. (long editorial)
Mike Perry <dmperry1012@...>
I would like to point out something I think people loose sight of regarding
the Jim-Bob 6-Pack: The bellcrank mod allows the builder to reduce the pivot arc (travel) of the tail wheel relative to the rudder travel. That makes the plane much less susceptible to sudden swerves at high speed, and thus easier to control during takeoff and landing. The tail wheel springs also desensitize the tail wheel. (You could achieve the same thing using split cables and changing the lengths of the control horns on the rudder and tail wheel, but the bell crank is an easy place to change the relative travel.) I understand the tail wheels of some WW II fighters had very little travel, but I can't seem to document that right now. My opinion is that tail draggers that land at high speeds need tail wheels that are "desensitized" with a reduced pivot arc and tail wheel springs. I understand the Q-2 plans from QAC used a tail wheel with a wide pivot arc in order to negotiate tighter corners on airports. This design worked OK on the Quickie, which lands at a lower speed, but has been problematic on the Q-2 and Q-200. The 6-Pack has full pivoting tail wheel and differential brakes to allow you to negotiate tight corners, and a reduced pivot arc and springs to desensitize the tail wheel at high speeds. Jim, I think this is what you meant when you said: "With just splitting the cables, Wes has no way to differentiate (detune)the angle of the tail wheel from the rudder." I just wanted to say it more clearly. Mike Perry At 06:33 PM 10/19/2006 +0000, Jim Patillo wrote: Fellas,----------
|
|
Re: Taxiing before first flight. (long editorial)
Terry Crouch is the resident Q1 Wizard. If its been done he knows the
good and bad about it. Regards, Jim Patillo -- In Q-LIST@..., "FR Jones" <seabeevet@...> wrote: little. So far I am still in the taxi phase of learning my airplane. I have noattached to two cables) is not safe. Do you know of a better design or system of
|
|
Re: Taxiing before first flight. (long editorial)
Tri-Q1 <rryan@...>
Jones,
Do you have hydraulic or cable brakes? Ryan --- In Q-LIST@..., "FR Jones" <seabeevet@...> wrote: a little. So far I am still in the taxi phase of learning my airplane. Ihave no problem with steering the plane, but the braking system (A D-ringattached to two cables) is not safe. Do you know of a better design orsystem of which you can send me plans?Saturday runway, Ibefore his first flight and would like to share some info. Even immediatefound it very difficult to handle. I could not keep it straight theresponse to him was to park the plane before he got hurt and fix wayproblem! toto differentiate (detune)the angle of the tail wheel from the andsensitive and hard to get positive results from known inputs. Hownot the throttle when taking off or landing. Not a good thing! installedmany serious tail draggers have anything other than toe brakes or veryare really quite tame, ask anyone who has them. I cannot for the themdifficult time handling their planes initially and often crack withup or have an incident even before the first flight. Because you Why?Wes; here's a very intellignet fella sitting on a field with NOT!To much additional cost? To much additional labor? Doesn't have a middleWhat? I do not understand this. own,of LVK with sucessful planes all aroud, chooses to go a different smackingisolated and out of touch? I now understand why this is not so whoup their planes. Hopefully this turns on the lights for someoen don't want to get hurt.
|
|
Re: Taxiing before first flight. (long editorial)
Allan,
I bought my Quickie Kit in October 1981 from the factory. It had a single pull lever that when applied set both brakes. I found this to be totally unacceptable in any kind of crosswind. I did not like the idea but toyed with dual finger brakes not near as close to fininshing as Bob Malachek, Sam Hoskins, Paul Fisher and Tom Moore. So I delayed finishing the brakes knowing some how I was going to install toe brakes. Then I met Bob Farnam and he showed me the fix. Bob had already designed and installed toe brakes so I basically copied his set up. Our toe brake pedal geometry varied a little but both planes handled basically the same....................tame. I didn't do David's alignment becaue the plane was already a "pussycat" . I know for a fact from Sam and others that the alignment worked wonders on many planes. Later Brad Olson, Jeff Rudledge and Mark Summers installed toe brakes with small variations but basically the same. I can say............ tame my good buddy Sam because it's so. Now should we collabrate and make a Q that can kick Klaus' ass? Regards, JP --- In Q-LIST@..., "Allan Farr" <afarr@...> wrote: & that QAC changed it to a single pull lever. Was their reasoning faulty in your opinion? Regards
|
|
Re: Taxiing before first flight. (long editorial)
FR Jones <seabeevet@...>
Jim, I have a Super Quickie and you are right, the brakes scare me a little.
toggle quoted messageShow quoted text
So far I am still in the taxi phase of learning my airplane. I have no problem with steering the plane, but the braking system (A D-ring attached to two cables) is not safe. Do you know of a better design or system of which you can send me plans?
On 10/19/06, Jim Patillo <logistics_engineering@...> wrote:
|
|
Re: Taxiing before first flight. (long editorial)
Sam Hoskins <shoskins@...>
My two cents worth, where I disagree with my good friend, Jim.
1. I do use differential finger brakes, with great success. They are positioned right behind the throttle. I let go of the throttle to use the brakes. You can see my installation here: http://home.mchsi.com/~shoskins/brakes01.jpg 2. I do have rudder splitters. See the installation here: http://home.mchsi.com/%7Eshoskins/aircraftdetail/tailcone01.jpg Each cable, splitting off to the rudder bellcrank, has a turnbuckle for adjustment. 3. I do not have the intermediate bellcrank. I believe the single biggest ground handling improvement that can be made is correcting the wheel alignment, per Gall. I made a blog entry about it: http://samhoskins.blogspot.com/ Having said that, I think it's fine for people to install the 6-pack. A couple of years ago I had the opportunity to taxi Jim's plane. I thought it felt a lot like mine, though maybe a little "softer" on the rudder pedals due to the tail wheel cable springs. (I bought a set, but never got around to installing them). Jim's point is well taken, if you build like a successful model, you should have the same results as that plane. However, "tame" is a word that is not in my Quickie vocabularly. Sam Hoskins Murpysburger, IL _____ From: Q-LIST@... [mailto:Q-LIST@...] On Behalf Of Jim Patillo Sent: Thursday, October 19, 2006 1:33 PM To: Q-LIST@... Subject: [Q-LIST] Taxiing before first flight. (long editorial) Fellas, I had the opportunity to high speed taxi Wes Isbergs' Q200 Saturday before his first flight and would like to share some info. Even though he did a fair job of controlling the plane down the runway, I found it very difficult to handle. I could not keep it straight either with rudder or his braking system or the combination. Wind was about 12K - 10-15 degrees off the nose. (Note: he has no bellcrank but has split the cables internally to rudder and tail wheel and has a modified dual differential finger brake system). Guess he didn't buy the Jim/Bob Six Pack Mod concept. My immediate response to him was to park the plane before he got hurt and fix the problem! Now for the details. With just splitting the cables, Wes has no way to differentiate (detune)the angle of the tail wheel from the rudder. He's installed a modified dual finger brake that has a single stick that slides sideways to apply pressure to one master cylinder or the other or both. That is not good because its way to sensitive and hard to get positive results from known inputs. Further exacerabating the situation is his hand is on the brake and not the throttle when taking off or landing. Not a good thing! How many serious tail draggers have anything other than toe brakes or heel brakes? Its just not natural to have finger brakes on a tail dragger and is to dangerous in my opinion. There are way to many things going on to be doing this additional "dance". This leads me to a conclusion. The Q's with sixpack mods installed are really quite tame, ask anyone who has them. I cannot for the life of me understand why anyone would want to do anything different. Yet we see it all the time. Most new Q pilots have a very difficult time handling their planes initially and often crack them up or have an incident even before the first flight. Because you didn't invent it, doesn't mean you can't copy it! The situation with Wes; here's a very intellignet fella sitting on a field with sucessuful Q's all around, yet he chooses to do his own thing. Why? To much additional cost? To much additional labor? Doesn't have a clear undrstanding of the problem? Doesn't know how to fix it - NOT! What? I do not understand this. This leads me to another conclusion. If Wes, sitting in the middle of LVK with sucessful planes all aroud, chooses to go a different route, what does that tell you about builders working on their own, isolated and out of touch? I now understand why this is not so simple and brace yourself fellas, we're in for more! These comments are in no way intended to bring heat on Wes but to simply make a couple of points as to why Q pilots are still smacking up their planes. Hopefully this turns on the lights for someoen who don't want to get hurt. Regards, Jim Patillo N46JP Q200 800 hours in type. So far, even in severe crosswinds, this plane has never deviated from the center line. Bingo! There's a reason.
|
|
Re: Taxiing before first flight. (long editorial)
Allan Farr <afarr@...>
Hi Jim. I understand that originally the Q2 had differential brakes, & that QAC changed it to a single pull lever. Was their reasoning faulty in your opinion?
toggle quoted messageShow quoted text
Regards Allan Farr Q2
----- Original Message -----
From: Jim Patillo To: Q-LIST@... Sent: Friday, 20 October 2006 11:28 Subject: [Q-LIST] Re: Taxiing before first flight. (long editorial) Dave, I hear you loud and clear and it's not that we had a better idea or that I'm pontificating. The entire tail dragger world had a better idea. Why don't you see finger brakes on all those tail draggers? Why do you think finger brakes even came into existance in the Q world? It was because we realized a single pull hand brake was not the answer and we needed dual differentiating brakes. A finger brake modification is a hell of a lot easier than installing toe brakes so many of us (Texas contingent)did finger brakes and got use to it. I'm simply stating what I saw and did. As you point out, you do need three hands to perform this operation safely. Problem is I haven't run across any three handed pilots lately. If people want to do things different, thats their perogative. As I said before, the post was not to denigrate or pupu Wes's idea or approach but to help prevent crashes before or during first flights. He was really creative in comming up with a unique differential finger brake, problem is it doesn't work and its almost counter intuitive. The control is to seensitive when moving the stick left to right or visa versa. Having taxied his plane, it just takes so much more to deal with than toe brakes. He can prove this out really easy. Leave the plane like it is and go fly! I know Paul and Sam have finger brakes and have lots of proven hours on them, fine. P.S. They are also really good Q pilots. Has either one of them ever had to repair their planes due to a mishap on the runway/taxiway or are their planes totally tame? Many people on this list know what I'm talking about but just don't care to express it. Regards, JP --- In Q-LIST@..., "Dave Richardson" <dave@...> wrote: > > You know Jim, it is easy to get so wrapped up in the "I've got a better > idea" mode that all other solutions become just noise. It sounds like > Wes came up with a neat adaptation of the original single pull lever. > Your practical experience shows, though, he would really need three > hands to make it work safely. I hope Wes listens to you and realizes > you are not just pontificating. Have you let him taxi your plane to > show him what he could be experiencing as compared to what his is > getting out of his design? I'll bet he spent far more time coming up > with his solutions and implementing them than it would take to install > the proven six pack. > > I had something similar happen to me with my reflexor prior to first > flight when a major flaw in my design was pointed out. Rather than > argue my position, I ripped out the whole mechanisim I worked pretty > hard on designing and implementing and installed a Falkner reflexor in a > fraction of the time. I have a much safer reflexor as a result and that > is what really counts. > > To Wes and other guys like Wes, why waste your time, energy and $'s on > something that has already been solved and proven to be successful? Do > what works and go fly your plane. > > Dave Richardson > Tri-Q2 N825DR 84 hrs. > > > -----Original Message----- > From: Jim Patillo > Sent: Thu 10/19/2006 2:33 PM > To: Q-LIST@... > Cc: > Subject: [Q-LIST] Taxiing before first flight. (long editorial) > > > > > > >
|
|
Re: Taxiing before first flight. (long editorial)
Dave,
I hear you loud and clear and it's not that we had a better idea or that I'm pontificating. The entire tail dragger world had a better idea. Why don't you see finger brakes on all those tail draggers? Why do you think finger brakes even came into existance in the Q world? It was because we realized a single pull hand brake was not the answer and we needed dual differentiating brakes. A finger brake modification is a hell of a lot easier than installing toe brakes so many of us (Texas contingent)did finger brakes and got use to it. I'm simply stating what I saw and did. As you point out, you do need three hands to perform this operation safely. Problem is I haven't run across any three handed pilots lately. If people want to do things different, thats their perogative. As I said before, the post was not to denigrate or pupu Wes's idea or approach but to help prevent crashes before or during first flights. He was really creative in comming up with a unique differential finger brake, problem is it doesn't work and its almost counter intuitive. The control is to seensitive when moving the stick left to right or visa versa. Having taxied his plane, it just takes so much more to deal with than toe brakes. He can prove this out really easy. Leave the plane like it is and go fly! I know Paul and Sam have finger brakes and have lots of proven hours on them, fine. P.S. They are also really good Q pilots. Has either one of them ever had to repair their planes due to a mishap on the runway/taxiway or are their planes totally tame? Many people on this list know what I'm talking about but just don't care to express it. Regards, JP --- In Q-LIST@..., "Dave Richardson" <dave@...> wrote: better idea" mode that all other solutions become just noise. It soundslike Wes came up with a neat adaptation of the original single pulllever. Your practical experience shows, though, he would really need threerealizes you are not just pontificating. Have you let him taxi your planeto show him what he could be experiencing as compared to what his isup with his solutions and implementing them than it would take toinstall the proven six pack.first flight when a major flaw in my design was pointed out. Rather thanpretty hard on designing and implementing and installed a Falknerreflexor in a fraction of the time. I have a much safer reflexor as a resultand that is what really counts.$'s on something that has already been solved and proven to besuccessful? Do what works and go fly your plane.
|
|
Re: Taxiing before first flight. (long editorial)
Dave Richardson <dave@...>
You know Jim, it is easy to get so wrapped up in the "I've got a better
toggle quoted messageShow quoted text
idea" mode that all other solutions become just noise. It sounds like Wes came up with a neat adaptation of the original single pull lever. Your practical experience shows, though, he would really need three hands to make it work safely. I hope Wes listens to you and realizes you are not just pontificating. Have you let him taxi your plane to show him what he could be experiencing as compared to what his is getting out of his design? I'll bet he spent far more time coming up with his solutions and implementing them than it would take to install the proven six pack. I had something similar happen to me with my reflexor prior to first flight when a major flaw in my design was pointed out. Rather than argue my position, I ripped out the whole mechanisim I worked pretty hard on designing and implementing and installed a Falkner reflexor in a fraction of the time. I have a much safer reflexor as a result and that is what really counts. To Wes and other guys like Wes, why waste your time, energy and $'s on something that has already been solved and proven to be successful? Do what works and go fly your plane. Dave Richardson Tri-Q2 N825DR 84 hrs.
-----Original Message-----
From: Jim Patillo Sent: Thu 10/19/2006 2:33 PM To: Q-LIST@... Cc: Subject: [Q-LIST] Taxiing before first flight. (long editorial)
|
|
Re: Taxiing before first flight.
Paul Buckley
Jim Patillo N46JP Q200 800 hours in type. So far, even in severe
crosswinds, this plane has never deviated from the center line. Bingo! There's a reason. A nosewheel ?? :-)
|
|
Re: Flight characteristics questions
Paul Buckley
Hi Tim
toggle quoted messageShow quoted text
As a matter of interest, all aircraft become increasingly pitch sensitive as the C of G travels aft, that is why there is an aft limit. There is a safety factor built in, of course, but, generally speaking, to be behind that limit is dangerous. The further forward the C of G is, the more pitch stable the aircraft is, at the expense of elevator authority, which is why there is a forward limit. Would I be correct in thinking that you do not have any sparrow strainers installed? Regards Paul Buckley Cheshire England. TriQ200....still building.
----- Original Message -----
From: q2fun To: Q-LIST@... Sent: Tuesday, October 17, 2006 12:27 AM Subject: [Q-LIST] Flight characteristics questions Hi All, I have some questions about the flight characteristics of the Q-2. Pitch sensitivity. With an after c/g my Q2 seams pitch sensitive. My Q2 has the LS1 canard, Revmaster 65hp, tail dragger. Is it normal to get more pitch sensitive the more aft the C/G gets? Rudder to control bank. My rudder does not do anything for bank. If the wing is down 5 degrees and you use the rudder to bring it up, all that happens is the plane will yaw and the bank may even get steeper. Is that a normal characteristic of the Q design? With an increase in airspeed above 150 mph indicated the airplane wants to pitch down and farther increase airspeed/pitch down harder. Is this normal? Sparrow strainers to small for this airspeed? I have the standard pitch trim system. I have been flying my Q since April and now have 62 hours in it. It is a joy to blast around the pattern and it is even a joy to put gas in it after a long cross county. It is just a little too slow in cruise 130 kts. Thank You All. Tim Bryant KUNV N86TB ------------------------------------------------------------------------------ No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.408 / Virus Database: 268.13.4/476 - Release Date: 14/10/2006
|
|
Taxiing before first flight. (long editorial)
Fellas,
I had the opportunity to high speed taxi Wes Isbergs' Q200 Saturday before his first flight and would like to share some info. Even though he did a fair job of controlling the plane down the runway, I found it very difficult to handle. I could not keep it straight either with rudder or his braking system or the combination. Wind was about 12K - 10-15 degrees off the nose. (Note: he has no bellcrank but has split the cables internally to rudder and tail wheel and has a modified dual differential finger brake system). Guess he didn't buy the Jim/Bob Six Pack Mod concept. My immediate response to him was to park the plane before he got hurt and fix the problem! Now for the details. With just splitting the cables, Wes has no way to differentiate (detune)the angle of the tail wheel from the rudder. He's installed a modified dual finger brake that has a single stick that slides sideways to apply pressure to one master cylinder or the other or both. That is not good because its way to sensitive and hard to get positive results from known inputs. Further exacerabating the situation is his hand is on the brake and not the throttle when taking off or landing. Not a good thing! How many serious tail draggers have anything other than toe brakes or heel brakes? Its just not natural to have finger brakes on a tail dragger and is to dangerous in my opinion. There are way to many things going on to be doing this additional "dance". This leads me to a conclusion. The Q's with sixpack mods installed are really quite tame, ask anyone who has them. I cannot for the life of me understand why anyone would want to do anything different. Yet we see it all the time. Most new Q pilots have a very difficult time handling their planes initially and often crack them up or have an incident even before the first flight. Because you didn't invent it, doesn't mean you can't copy it! The situation with Wes; here's a very intellignet fella sitting on a field with sucessuful Q's all around, yet he chooses to do his own thing. Why? To much additional cost? To much additional labor? Doesn't have a clear undrstanding of the problem? Doesn't know how to fix it - NOT! What? I do not understand this. This leads me to another conclusion. If Wes, sitting in the middle of LVK with sucessful planes all aroud, chooses to go a different route, what does that tell you about builders working on their own, isolated and out of touch? I now understand why this is not so simple and brace yourself fellas, we're in for more! These comments are in no way intended to bring heat on Wes but to simply make a couple of points as to why Q pilots are still smacking up their planes. Hopefully this turns on the lights for someoen who don't want to get hurt. Regards, Jim Patillo N46JP Q200 800 hours in type. So far, even in severe crosswinds, this plane has never deviated from the center line. Bingo! There's a reason.
|
|
Re: Flight characteristics questions
Letempt, Jeffrey MR <jeffrey.letempt@...>
It is interesting to discover differences in the Q and Dragonfly as these
toggle quoted messageShow quoted text
discussions come up. The Dragonfly's rudder is very effective, in fact the rudder is way more effective than the ailerons in rolling my Dragonfly....of course the Dragonfly probably has twice the rudder area. As the airspeed builds in the Dragonfly the aileron controls forces get very heavy, this is a problem that the Q does not seem to have. Lots of Dragonfly's have aileron servo tabs to reduce the aileron stick pressure. Like Jim's experience, my Dragonfly is more pitch sensitive with an aft CG. I have adjustable sparrow strainers on my Dragonfly (GU canard) and a simple 2 spring elevator trim system. If I run out of up elevator trim I need to put more AOA in the sparrow strainers. The faster the airspeed the more the elevator wants to come up. Using a digital level; with the upper surface of the elevator at 45 degrees down (not travel, just the static position) the upper surface of my sparrow strainers are at 38 degrees down. A 2-3 degree adjustment of the sparrow strainers makes a significant difference, in fact I have been able to correct for a slight roll tendency with one sparrow strainer that is set ever so slightly different that the other one. This sparrow strainer setting works for my current cruise airspeed of about 140 MPH. My elevator trim system does not have a wide adjustment range and I have found that the 5-7 MPH airspeed difference with my wheel pants requires a sparrow strainer adjustment. I can adjust for hands-off with the reflexor if I run out of elevator trim, but the elevator will not be in trail. I can either install larger springs, install a different trim system that has more travel, or make minor sparrow strainer adjustments when I make aerodynamic adjustments that will effect my cruise airspeed. I will probably opt for the minor sparrow strainer adjustments, but a trim system with more range is the right answer (and there are even plans in an old Dragonfly newsletter)....maybe I am getting lazy. I know very little of this information could be directly applied to a Q, but you never know. Obviously you should listen to what the experienced Q guys have to say. Good luck. Jeff
-----Original Message-----
From: Q-LIST@... To: Q-LIST@... Sent: 10/16/2006 7:12 PM Subject: [Q-LIST] Re: Flight characteristics questions TIM, FIRST CONGRATULATIONS ON YOUR 62 HOURS FLIGHT TIME IN A Q. YOU'VE JOINED A UNIQUE CLUB. --- In Q-LIST@yahoogroups. <mailto:Q-LIST%40yahoogroups.com> com, "q2fun" <q2fun@...> wrote: 2. Pitch sensitivity. With an after c/g my Q2 seams pitchsensitive. My Q2 has the LS1 canard, Revmaster 65hp, tail dragger. Is itABSOLUTELY! FAR AFT CG IS NOT A GOOD PLACE TO BE IN THIS PLANE. up, all that happens is the plane will yaw and the bank may even getMAYBE. IN LEVEL FLIGHT, PUSHING THE RUDDER WILL DEFINATELY YAW THE TAIL BUT I HAVEN'T NOTICE THE BANK INCREASING. IN SLIGHT BANKS MINE WILL RECOVER USING THE RUDDER ONLY. I THINK THE SMALL RUDDER ON THESE PLANES DOES A GOOD JOB BUT RECOVERING FROM A BANK SOLELY USING RUDDER .......NOT SO GOOD. I WILL CHECK IT OUT WHEN I FLY AGAIN. I CRUISED MY Q200 (LS1)SATURDAY FROM 130 TO 185K AND DID NOT NOTICE ANY TUCKING OR PITCHING. I ALSO HAVE A STANDARD TRIM SYSTEM. MAYBE YOUR STRAINERS ARE INSTALLED INCORRECT. It is a joy to blast around the pattern and it is even a joy to putgas in it after a long cross county. It is just a little too slow inYOU CAN FIX THAT! TIM WE SEE 160-165K CRUISE STANDARD WITH PUMPED 0200'S (TAIL DRAGGER VERSION). JUST COSTS A LITTLE $$$$$$$. REGARDS, JIM PATILLO
|
|
Re: Headset
BARRY AMANDA STEARNS <stearns2559@...>
Or buy a David Clark or Telex and not have to worry about it breaking....not even talking about the one I have for sale, but we have seen so many light speed headsets broke at the shop that I don't care for them anymore...yes the service support is great, but I'd buy one that didn't need service for the same money. Also, I haven't seen this new 30 something Lightspeed, but I hope it isn't as big and stiff as the ones I have worked on. I like lighter softer headsets that don't squeeze my brains out to stop the noise from getting in the ear. Just me 2 cents worth.
toggle quoted messageShow quoted text
Barry
----- Original Message -----
From: Jim Patillo<mailto:logistics_engineering@...> To: Q-LIST@...<mailto:Q-LIST@...> Sent: Thursday, October 19, 2006 12:39 PM Subject: [Q-LIST] Re: Headset Ron, quit being such a damn tight wad and just purchase a new 30 3G, there are only $585.00! That will give you what you want and it will be new. You can't beat Lightspeed for service warranty and back up. Loosen up with that dough, you can't take it with you and you sure as hell don't want to give it all to your kids. Hope all is well with your flight testing. How many hours now? Regards, Jim P --- In Q-LIST@...<mailto:Q-LIST@...>, "Ron Triano" <rondefly@...> wrote: > > James, do they have the cell plugin and what is the amount of noise > canceling ? If so, let me know how much they offer. > > > > Ron Triano > > South Lake Tahoe, CA > > The Sonerai is finished and flying > > finishing the Q200 > > -----Original Message----- > From: Q-LIST@...<mailto:Q-LIST@...> [mailto:Q-LIST@...<mailto:Q-LIST@...>] On Behalf Of > James Cartwright > Sent: Wednesday, October 18, 2006 10:22 PM > To: Q-LIST@...<mailto:Q-LIST@...> > Subject: Re: [Q-LIST] Headset > > > > Ron, > I have a couple of Lightspeed headsets I was going to send in for the 30 3g > units. Maybe I can set you up for the same price they are going to give me > for a trade in. These units are only 2 years old. They are the QFRXCc > Headset. > > James > 615-293-3134 > > ----- Original Message ----- > From: Ron Triano > To: Q-LIST@yahoogroups. <mailto:Q-LIST%40yahoogroups.com> com > Sent: Wednesday, October 18, 2006 7:49 AM > Subject: RE: [Q-LIST] Headset > > Thanks Phil for the offer, from everything I hear about the lightspeed type > that probably is the way I will go however what is a Marv Golden one? > > Ron Triano > > South Lake Tahoe, CA > > Sonerai there and Q200 gettin there > > -----Original Message----- > From: Q-LIST@yahoogroups. <mailto:Q-LIST%40yahoogroups.com> com > [mailto:Q-LIST@yahoogroups. <mailto:Q-LIST%40yahoogroups.com> com] On Behalf > Of > britmcman@aol. <mailto:britmcman%40aol.com> com > Sent: Tuesday, October 17, 2006 10:15 PM > To: Q-LIST@yahoogroups. <mailto:Q-LIST%40yahoogroups.com> com > Subject: Re: [Q-LIST] Headset > > Ron: > > If you like, I could lend you a Marv Golden Logo'd version of the Lightspeed > > QFR Cross Country C. It has a cell phone interface and is a pretty nice > unit. Or a 30 3 G Lightspeed (also with cell phone interface). You can get > an > idea about what some of the Lightspeed products are all about. I trust you. > > Cheers, > > Phil > > > > > > > > > > > > >
|
|
Re: Flight characteristics questions
MartinErni@...
Jeff,
Not all Q's are like the one described that would not lift a wing with rudder. My plane easily lifts a wing with rudder. When I want to fold a map I get on the rudder so my hands are free. A few years back, before I put my pitch trim switch on the stick, I flew it for 30 minutes without touching the stick using pitch trim and rudder. That was on an average summer day with average turbulence. I could have done it all day but 30 minutes gave me the info I wanted. I don't know if not having anhedral on the canard makes a difference or not. Maybe anhedral on the canard partially cancels the dihedral of the wing. It's amazing how many differences we find in the same design with different builders. Earnest Triq200 960 hrs
|
|
Re: Headset
Ron, quit being such a damn tight wad and just purchase a new 30 3G,
there are only $585.00! That will give you what you want and it will be new. You can't beat Lightspeed for service warranty and back up. Loosen up with that dough, you can't take it with you and you sure as hell don't want to give it all to your kids. Hope all is well with your flight testing. How many hours now? Regards, Jim P --- In Q-LIST@..., "Ron Triano" <rondefly@...> wrote: Behalf Of James Cartwrightthe 30 3g units. Maybe I can set you up for the same price they are going togive me for a trade in. These units are only 2 years old. They are theQFRXCc Headset.lightspeed type that probably is the way I will go however what is a Marv Goldenone? On Behalf OfLightspeed nice unit. Or a 30 3 G Lightspeed (also with cell phone interface). Youcan get antrust you.
|
|
Re: Headset
Ron Triano <rondefly@...>
James, do they have the cell plugin and what is the amount of noise
toggle quoted messageShow quoted text
canceling ? If so, let me know how much they offer. Ron Triano South Lake Tahoe, CA The Sonerai is finished and flying finishing the Q200
-----Original Message-----
From: Q-LIST@... [mailto:Q-LIST@...] On Behalf Of James Cartwright Sent: Wednesday, October 18, 2006 10:22 PM To: Q-LIST@... Subject: Re: [Q-LIST] Headset Ron, I have a couple of Lightspeed headsets I was going to send in for the 30 3g units. Maybe I can set you up for the same price they are going to give me for a trade in. These units are only 2 years old. They are the QFRXCc Headset. James 615-293-3134 ----- Original Message ----- From: Ron Triano To: Q-LIST@yahoogroups. <mailto:Q-LIST%40yahoogroups.com> com Sent: Wednesday, October 18, 2006 7:49 AM Subject: RE: [Q-LIST] Headset Thanks Phil for the offer, from everything I hear about the lightspeed type that probably is the way I will go however what is a Marv Golden one? Ron Triano South Lake Tahoe, CA Sonerai there and Q200 gettin there -----Original Message----- From: Q-LIST@yahoogroups. <mailto:Q-LIST%40yahoogroups.com> com [mailto:Q-LIST@yahoogroups. <mailto:Q-LIST%40yahoogroups.com> com] On Behalf Of britmcman@aol. <mailto:britmcman%40aol.com> com Sent: Tuesday, October 17, 2006 10:15 PM To: Q-LIST@yahoogroups. <mailto:Q-LIST%40yahoogroups.com> com Subject: Re: [Q-LIST] Headset Ron: If you like, I could lend you a Marv Golden Logo'd version of the Lightspeed QFR Cross Country C. It has a cell phone interface and is a pretty nice unit. Or a 30 3 G Lightspeed (also with cell phone interface). You can get an idea about what some of the Lightspeed products are all about. I trust you. Cheers, Phil
|
|
Re: Headset
James Cartwright <james.cartwright@...>
Ron,
toggle quoted messageShow quoted text
I have a couple of Lightspeed headsets I was going to send in for the 30 3g units. Maybe I can set you up for the same price they are going to give me for a trade in. These units are only 2 years old. They are the QFRXCc Headset. James 615-293-3134
----- Original Message -----
From: Ron Triano To: Q-LIST@... Sent: Wednesday, October 18, 2006 7:49 AM Subject: RE: [Q-LIST] Headset Thanks Phil for the offer, from everything I hear about the lightspeed type that probably is the way I will go however what is a Marv Golden one? Ron Triano South Lake Tahoe, CA Sonerai there and Q200 gettin there -----Original Message----- From: Q-LIST@... [mailto:Q-LIST@...] On Behalf Of britmcman@... Sent: Tuesday, October 17, 2006 10:15 PM To: Q-LIST@... Subject: Re: [Q-LIST] Headset Ron: If you like, I could lend you a Marv Golden Logo'd version of the Lightspeed QFR Cross Country C. It has a cell phone interface and is a pretty nice unit. Or a 30 3 G Lightspeed (also with cell phone interface). You can get an idea about what some of the Lightspeed products are all about. I trust you. Cheers, Phil
|
|