Date
1 - 20 of 26
Reflexor
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Mike Steinsland
Hi guys
I took a side step from my reflexor installationfor a bit. The reflexor itself is done but I'm now wondering about the control. I'd like to use a handle located next to the two finger brakes. I'm thinking of having a neutral detent that the handle will slip into and have to be intentionally pulled out of position to then move forward or aft. I'm wondering about the force needed to actuate reflexor and what force / resistance is needed to hold it in place I'm looking at the design and I get the impression that it wont take much to activate. Will a simple spring putting pressure on the side of the handle be strong enough to hold the handle in position. Picture of the reflexor is attached Thanks Mike |
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Anthony P
Applied torque to the eccentric due to reflexed aileron control rods << Reaction torque due to friction at the O.D. of the eccentric.
I'll bet vibration and "walking" are the biggest issues here. The friction in my simple, non-locking push/pull cable and eccentric interface to the bulkhead will always beat any moment applied simultaneously to the ailerons. A neutral or "trail" detent would be nice but I haven't seen them. I think most pilots just "know" where it is. -- Q2 N86KL |
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Chris Walterson
Mike--------------- My reflexor is set with the control on the forward side of the bulkhead, same design as yours.
Because the reflexor donut is snug and the aileron torque tube is well lubricated there is no creep, or any other movement in my system. My actuator is a lawn mower throttle with the normal lawn mower throttle friction. No detent at all and it stays where you set it. I am using the heavier wall solid bowen cable. Not as big as yours and if you use a lighter cable it may flex instead of moving the reflexor. With my hand on the throttle I can easily tweak the reflexor for desired position. You are making good progress and i always look forward to your posts.-------------- Chris -- This email has been checked for viruses by Avast antivirus software. www.avast.com |
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Mike Steinsland
Thanks Chris, any chance you have a part # for the throttle handle? On Thu., Jan. 26, 2023, 10:50 a.m. Chris Walterson, <dkeats@...> wrote: Mike--------------- My reflexor is set with the control on the |
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Chris Walterson
Mike ---------- The throttle is from Air Craft Spruce. Red one is throttle and black is turbo boost.------------ Chris
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Chris Walterson
Mike----------- I checked it out and I think I used the Model 3 internal reversing. There are a good selection that will work.--- Chris
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Bill Allen
I visited Kevin Sheely lat year, he installed his reflexer control in the LH armrest so it was ergonomically placed by the engine controls. He used a vernier push-pull cable, commonly used on mixture controls for fine tuning. It can just be seen in the lower left of the attached pic. Kevins Q200 is an outstanding example, down to the smallest detail. Bill Allen On Thu, 26 Jan 2023 at 14:21, Chris Walterson <dkeats@...> wrote: Mike----------- I checked it out and I think I used the Model 3 --
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Looks delicious! Will the vernier let you move the reflexor quick enough? Will pushing the button be an extra function that will slow the movement down to much?
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Bruce On Jan 26, 2023, at 1:13 PM, Bill Allen <billallensworld@...> wrote:
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Bruce raises a good point here. In an emergency, for example if one or more of the links to the elevator breaks or becomes jammed, the reflexor is a back-up pitch control, you would like it to be usable in that regard.
Cheers, Jay
From: main@Q-List.groups.io <main@Q-List.groups.io> On Behalf Of Bruce Crain
Sent: Thursday, January 26, 2023 4:43 PM To: main@q-list.groups.io Subject: Re: [Q-List] Reflexor
Looks delicious! Will the vernier let you move the reflexor quick enough? Will pushing the button be an extra function that will slow the movement down to much? Bruce
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Kevin Boddicker
I have a vernier cable on my plane as does Fisher. Where I got the idea.
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Haven’t flown with anything else, so your concern my not be relevant, as I don’t know any other control movement. Seems perfectly natural in the arm rest below the throttle. Also pushing the button and moving to desired location is quick, and second nature. The fine adjustments are made by turning the knob very slightly. Literally an eighth of a turn will have a profound effect on pitch. My 2 cents. FWIW
Kevin Boddicker
TriQ 200 N7868B 593 hrs Luana, IA.
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The centering detent makes sense and having a "stick" backup to the elevator is also a very viable point. Redundancy is good.
So..on this line, my plan is now to incorporate both but for the concerns about holding a position the easiest "factory method" design
I can think of is a larger flat steel washer, then Belleville
washer with the correct smaller AN flat washer under the bolt head. The stack
keeps the assembly in compression. Install on the reflexor
pivot bolt.
Use a drilled head bolt and safety wire the pivot bolt to prevent any chance of it backing off, thus loosing compression pressure. The idea
is to add friction to the system but keeping it smooth acting, so a bit of flight testing is in order to obtain that "best feel". Belleville washers
are a very good design for maintaining tension. The lifetime
wear limit on this item with a bit of candle wax as a lube would exceed other items
on the aircraft.
Very little weight or cost (Grainger has a big selection of these types of washers). Only the bolt and smaller flat washer needs
be AN hardware. Your safety wire hard point could be another drilled AN bolt floxed in the bulkhead or whatever design you decide. If a
hardpoint "tab" I would make it in steel. .025" is more
than sufficient.
Best regards
Vern From: main@Q-List.groups.io <main@Q-List.groups.io> on behalf of Jay Scheevel <jay@...>
Sent: Thursday, January 26, 2023 5:49 PM To: main@Q-List.groups.io <main@Q-List.groups.io> Subject: Re: [Q-List] Reflexor Bruce raises a good point here. In an emergency, for example if one or more of the links to the elevator breaks or becomes jammed, the reflexor is a back-up pitch control, you would like it to be usable in that regard.
Cheers, Jay
From: main@Q-List.groups.io <main@Q-List.groups.io> On Behalf Of Bruce Crain
Looks delicious! Will the vernier let you move the reflexor quick enough? Will pushing the button be an extra function that will slow the movement down to much? Bruce
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Mike Steinsland
I like that idea Vern,
I think that will work way better than a coil spring Thanks for the advise guys Mike |
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Chris Walterson
Regarding reflexor, to all the people that are using them, has anyone had any creep or movement with just a normal cable actuating system. I never have, on both my airplanes, but am curious about other experiences. Chris
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No creep on mine in ~300 hours so far.
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Cheers, Jay -----Original Message-----
From: main@Q-List.groups.io <main@Q-List.groups.io> On Behalf Of Chris Walterson Sent: Friday, January 27, 2023 2:36 PM To: main@Q-List.groups.io Subject: Re: [Q-List] Reflexor Regarding reflexor, to all the people that are using them, has anyone had any creep or movement with just a normal cable actuating system. I never have, on both my airplanes, but am curious about other experiences. Chris -- This email has been checked for viruses by Avast antivirus software. www.avast.com |
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I use the lawnmower type ratchet throttle cable from Aircraft Spruce. It's compact and works just fine. I have it mounted in my center armrest, just aft of the stick. I normally only touch it two or three times during an entire flight. Sam On Fri, Jan 27, 2023, 3:35 PM Chris Walterson <dkeats@...> wrote: Regarding reflexor, to all the people that are using them, has anyone |
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Not a bit!
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Bruce On Jan 27, 2023, at 2:41 PM, Jay Scheevel <jay@...> wrote: |
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And with ratcheting you can count the clicks.
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Bruce On Jan 27, 2023, at 3:00 PM, Joanne Crain <jcrain2@...> wrote: |
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Dito for me Sam. Installed same assy. Before 1st. Flight, never had 1 problem with it.
Jim
N46JP Q200
From: main@Q-List.groups.io <main@Q-List.groups.io> on behalf of Sam Hoskins <sam.hoskins@...>
Sent: Friday, January 27, 2023 1:58:40 PM To: main@q-list.groups.io <main@q-list.groups.io> Subject: Re: [Q-List] Reflexor I use the lawnmower type ratchet throttle cable from Aircraft Spruce. It's compact and works just fine. I have it mounted in my center armrest, just aft of the stick. I normally only touch it two or three times during an entire flight.
Sam
On Fri, Jan 27, 2023, 3:35 PM Chris Walterson <dkeats@...> wrote:
Regarding reflexor, to all the people that are using them, has anyone |
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Chris Walterson
One other thing for the reflexor control. Do not put a detent at your neutral position. Neutral at 900 lbs will not be neutral at 1250.
Take care-------------- Chris -- This email has been checked for viruses by Avast antivirus software. www.avast.com |
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Mike Steinsland
Hi Chris, I think I understand what you are saying; more weight requires more lift. And the reflexor can be used to trim with the ailerons rather than the elevators. I was considering neutral to be both ailerons with 0° deflection from what the plans call for. At that setting should not any trimming be able to be done with the elevator ( with correct C of G)? The reason I am thinking of a detent is that I've been reading how powerful the reflexor is and am considering that if it was inadvertently left in the wrong position at take off it could quickly be set in a neutral spot without over correcting. For that matter, even when setting it for take off, I could know by feel where a starting point is. Your thoughts? Thanks, Mike BTW , I picked up a small engine throttle handle at Princess Auto yesterday👍...can't wait to install it On Fri., Jan. 27, 2023, 7:38 p.m. Chris Walterson, <dkeats@...> wrote: One other thing for the reflexor control. Do not put a detent at your |
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