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Re: Triq tracking
REBECCA SIMPSON
Ernest,
I had this problem so you had to put the right rudder pedal to the floor and still tap the right brake. I pulled the wheels, greased the bearings and retighened both sides equally - not 100% but much better. Brad, What size shims? Did you buy or make them ? Cheers, Tad
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Re: Triq tracking
FR Jones <seabeevet@...>
Has he tried any high speed taxi runs? I don't mean one or two, but a lot to
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wittle down the possibilities? Dick
On 11/24/06, MartinErni@... <MartinErni@...> wrote:
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Re: Triq tracking
Bartholomew Hanson Fisher
Or the motor is left?
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Quoting darichardson75 <darichardson75@...>:
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Re: Triq tracking
David Richardson
A couple of other things he might want to check. Larry has an O200
on his plane so it's going to want to go to the left if encouraged. He might want to check and see that his nose gear was installed vertically. If it is leaning with the wheel more to the passenger side it would want to go to the left. While he's at it he should check his caster to make sure it is positive. The lowest part the nose gear where the fork is attached needs a couple of degrees of angle. If you look at that part from the side, the bottom of the nose gear should be forward of the upper area where the fork attaches so that angle is leaning backwards toward the tail. That will help the wheel center itself. Dave Richardson Tri-Q2 825DR --- In Q-LIST@..., Jerry Marstall <jnmarstall@...> wrote: does, attempts to align the wheels would not help for very long. If heis running a VW and if he has toe-brakes, maybe his rudderpedal/brake linkage is such that when he is applying rudder, he is draggingthe brake. Will it taxi straight?has been pulling tofighting with a problem for quite some time with his plane manythe left on than 40hours on quizhours on it. He does not have Internet access and asked that I Hethe group. degrees andcompletely nothingthe camber to 8 changed.
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Re: Triq tracking
Jerry Marstall <jnmarstall@...>
maybe he has a moving gear attachment problem like I had. If he does,
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attempts to align the wheels would not help for very long. If he is running a VW and if he has toe-brakes, maybe his rudder pedal/brake linkage is such that when he is applying rudder, he is dragging the brake. Will it taxi straight? Jerry MartinErni@... wrote:
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Re: Triq tracking
MartinErni@...
Thanks Dave,
Those have all been checked. E
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Re: Triq tracking
MartinErni@...
In a message dated 11/25/2006 8:49:38 A.M. Eastern Standard Time,
jnmarstall@... writes: maybe he has a moving gear attachment problem like I had. If he does, attempts to align the wheels would not help for very long. If he is running a VW and if he has toe-brakes, maybe his rudder pedal/brake linkage is such that when he is applying rudder, he is dragging the brake. Will it taxi straight? Jerry, I mentioned your problem with the Saddle tube slipping and he was going to double check it. It will not taxi straight. Earnest
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Re: Triq tracking
MartinErni@...
In a message dated 11/25/2006 1:29:03 A.M. Eastern Standard Time,
brirbrg@... writes: I had the same problem, I first shimmed the left wheel out on the front (toe out), taxi tested, then shimmed the right wheel in. Ended up with the same toe in but the plane taxied straight and was steerable with rudder only after about 20 MPH. On take off and landing, I can track down the centre line with rudder only, and never touch the brakes except to slow down. hope this helps. Thanks Brad, This is the most encouraging thing I have heard. I'll call Larry. Earnest
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Re: Triq tracking
MartinErni@...
In a message dated 11/24/2006 11:15:18 P.M. Eastern Standard Time,
britmcman@... writes: Is the tracking error the same on acceleration as on deceleration? Could it be that the thrust of the propeller is pulling the plane in the direction of error? Does the plane fly in a crab as well? Phil, It gets worse decelerating. Earnest
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Re: Triq tracking
MartinErni@...
In a message dated 11/24/2006 11:00:55 P.M. Eastern Standard Time,
rickhole@... writes: Where in Florida is this plane located? Would he be willing to fly to Sebastian (X26) so we could take a look and maybe put our guru in it for a taxi test. He is at Aero Acres near Fort Pierce. Give him a call at 772-460-1961. Earnest
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Re: Triq tracking
Brad/Iris Baerg <brirbrg@...>
I had the same problem,
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I first shimmed the left wheel out on the front (toe out), taxi tested, then shimmed the right wheel in. Ended up with the same toe in but the plane taxied straight and was steerable with rudder only after about 20 MPH. On take off and landing, I can track down the centre line with rudder only, and never touch the brakes except to slow down. hope this helps. Brad TRI- Q CGTCA
----- Original Message -----
I got a call from Larry Covey a triq builder from Florida. He has been fighting with a problem for quite some time with his plane pulling to the left on the runway. It is bad enough that he has been reluctant to put many hours on it. It has been finished for several years and is still has less than 40 hours on it. He does not have Internet access and asked that I quiz the group. I suggested he check the obvious things (wheel alignment, wheel bearings, brakes, etc) and he had already done those and more. He completely realigned the wheels and axles resetting the toe in to .5 degrees and the camber to 8 degrees. He replaced the wheels, bearings, and brakes and nothing changed. His tire wear is the same as mine (slightly more on the outside treads). I can't imagine what his problem is. Any ideas I might pass along? Earnest
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Re: Q200 in X-Plane
Peter Harris <peterjfharris@...>
Larry Try reflexing the aelerons. With aelerons flush there is too much lift
on the main. Touch the brakes and the tail lifts too easily and you could have a problem. (based on my Q , 1 POB) Peter _____ From: Q-LIST@... [mailto:Q-LIST@...] On Behalf Of larry severson Sent: Thursday, 23 November 2006 2:39 PM To: Q-LIST@... Subject: [Q-LIST] Q200 in X-Plane I downloaded a beautiful Q200 model for X-plane from somewhere. Unfortunately, on my system, it bounces around and pops, and then goes over nose first ending on its back. Starting in the air, it flies well, but on landing, it noses over as the speed slows. Does anyone know how to correct this problem? Larry Severson Fountain Valley, CA 92708 (714) 968-9852 larry2@socal. <mailto:larry2%40socal.rr.com> rr.com
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Re: Triq tracking
Richard Hole <rickhole@...>
Where in Florida is this plane located? Would he be willing to fly to
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Sebastian (X26) so we could take a look and maybe put our guru in it for a taxi test.
--- In Q-LIST@..., MartinErni@... wrote:
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Re: Triq tracking
French <LJFrench@...>
Earnest,
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Do you know if he checked the toe in relative to the centerline of the fuselage or just relative to each other or the gear? Could it be possible the main gear is not mounted square in the fuselage? I would think that would just cause him to go down the runway sideways rather than causing a "pull" to one side......unless he is tapping a brake to try making it go straight and that is the "pull". Axle nut torque on the one wheel bearing could cause this if he is trying to tighten one of the axle nuts to the next "cotter" notch which may be much tighter than the other side. Sometimes a shim is needed on one side or the other so the cotter pin can be inserted at the right bearing preload. Don't know....just some thoughts Lynn French
----- Original Message -----
From: <MartinErni@...> To: <Q-LIST@...> Sent: Friday, November 24, 2006 7:28 PM Subject: [Q-LIST] Triq tracking He completely realigned the wheels and axles resetting the toe in to .5 degrees and the camber to 8 Earnest
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Re: Triq tracking
Is the tracking error the same on acceleration as on deceleration? Could it
be that the thrust of the propeller is pulling the plane in the direction of error? Does the plane fly in a crab as well? Phil
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Re: Triq tracking
MartinErni@...
In a message dated 11/24/2006 9:51:39 P.M. Eastern Standard Time,
LJFrench@... writes: unless he is tapping a brake to try making it go straight and that is the "pull". Lynn he said he was using a lot of right brake to keep it from turning left at speeds all the way up to 40 or 50 MPH. I only tap the brake for maybe the first 50 feet of TO roll. He also said it was a more marked turn when decelerating. I am perplexed. I wish I could examine it for myself. Earnest
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Triq tracking
MartinErni@...
I got a call from Larry Covey a triq builder from Florida. He has been
fighting with a problem for quite some time with his plane pulling to the left on the runway. It is bad enough that he has been reluctant to put many hours on it. It has been finished for several years and is still has less than 40 hours on it. He does not have Internet access and asked that I quiz the group. I suggested he check the obvious things (wheel alignment, wheel bearings, brakes, etc) and he had already done those and more. He completely realigned the wheels and axles resetting the toe in to .5 degrees and the camber to 8 degrees. He replaced the wheels, bearings, and brakes and nothing changed. His tire wear is the same as mine (slightly more on the outside treads). I can't imagine what his problem is. Any ideas I might pass along? Earnest
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Re: Q200 in X-Plane
Larry Severson
At 02:15 AM 11/24/2006, you wrote:
Convert it to tricycle undercarriage? Sorry, could not resist...I plan to do that; however, according to comments on X-Plane.org, the problem exists in X-Plane for all plane models under 2000 lbs T/O weight. The same problem happened with a KR2 model using X-Plane 8.0 - 8.5. Larry Severson Fountain Valley, CA 92708 (714) 968-9852 larry2@...
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Re: Q200 in X-Plane
John ten
Convert it to tricycle undercarriage? Sorry, could not resist...
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Check to see if your brakes are set on or off. John
--- In Q-LIST@..., larry severson <larry2@...> wrote:
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Re: Props for Q2 Revmaster 85HP
Peter Harris <peterjfharris@...>
That 1000-1100FPM rate is near sea level, and there would be a strong case
for a CS prop for high altitude fields, which we often forget as we have none.. Peter _____ From: Q-LIST@... [mailto:Q-LIST@...] On Behalf Of Peter Harris Sent: Friday, 24 November 2006 6:28 AM To: Q-LIST@... Subject: RE: [Q-LIST] Re: Props for Q2 Revmaster 85HP Richard, You will get at least 1000FPM climb with a fixed prop. A CS prop will not give you a better max cruise speed I think the CS option is only justified if you need a better climb rate. JMHO Peter _____ From: Q-LIST@yahoogroups. <mailto:Q-LIST%40yahoogroups.com> com [mailto:Q-LIST@yahoogroups. <mailto:Q-LIST%40yahoogroups.com> com] On Behalf Of Richard Hole Sent: Friday, 24 November 2006 1:51 AM To: Q-LIST@yahoogroups. <mailto:Q-LIST%40yahoogroups.com> com Subject: [Q-LIST] Re: Props for Q2 Revmaster 85HP The engine is the 80 HP (sorry for the earlier typo) turbo Revmaster 2100. We had a thought that, if available, a constant speed prop might make better use of the power, don't know if the group has any experience here. --- In Q-LIST@yahoogroups. <mailto:Q-LIST%40yahoogroups.com> com, "Peter Harris" <peterjfharris@...> wrote: made 3200rpm at WOT and max cruise was 140KTS and 3200rpm is peak power forthat engine.
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