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  #31  
Old 09-03-2020, 12:35 PM
WingsOnWheels WingsOnWheels is offline
 
Join Date: Mar 2009
Location: Plano, TX
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Just throwing out ideas

How about rudder control with knee movement from one leg. That same leg would have foot control for brakes, mixed via the rudder control.

The other leg would provide stick control with the throttle via foot control.

Things like the PTT and Flaps could be placed in easy reach.

I think it could be done with a reasonable amount of work. Pitch/Roll controls would be harder on the side-by-side models, but not impossible.

I am in Texas, but will gladly provide any machined parts you need. Feel free to contact me when the time comes. I am also happy to help any other way I can.
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  #32  
Old 09-03-2020, 12:48 PM
WingsOnWheels WingsOnWheels is offline
 
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After more thought, the fly-by-wire ide would be the way to go. The hardware already exists and is available.

A set of the larger autopilot servos could do the job. Just need an interface. I bet Dynon or GRT could be talked into a simple interface. If not, I'm sure someone else is capable of creating that serial interface. A modified stick could be retained to allow manual reversion as well. That leaves the brakes and engine controls. A servo drive would work fine there as well.
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I donate every year on my B-Day (in Dec), but donated early in Sep'19.
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  #33  
Old 09-03-2020, 01:00 PM
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beav beav is offline
 
Join Date: Feb 2009
Location: San Jose, CA
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Hi Jessica,

I work at Apple and have worked closely with the Accessibility team. We always start with a clear understanding of the user's abilities before designing a system to accommodate them. Given that, I'd like to understand what motions or manipulations you would be prefer to use for aircraft control and your relative strength and precision for each motion.

1. Pushing and pulling your feet
2. Moving your knees from side to side.
3. Rocking your feet forward (like pushing a gas pedal) or backward.
4. Twisting your feet left and right (around an axis through your lower leg).
5. Gripping or manipulating controls with your toes.
6. Mouth controls (blow/suck tube)
7. Any upper torso motion?
8. Anything I'm missing?

Once we know which motions you'd like to use for each aircraft control, I have no doubt that this group has the brain power to come up with the modifications necessary to give you that control.

I'd be happy to help in any way I can; I'm close enough to fly down if necessary.
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  #34  
Old 09-03-2020, 01:50 PM
bbsdad bbsdad is offline
 
Join Date: Oct 2018
Location: tx
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How about a boot to fit your feat in. Twist for rudder, for and aft for elevators, right and left for ailerons. That would leave the Other foot/leg for throttle, flaps, and brakes. Changing radios etc by voice command. That way she would have a more comfortable seating position. Also I think the 8a would be the ezest to modify. Entry/egress I think you already have a handle on. Wish I had more resources to offer, but if thereís anyway I can help feel free to ask. Good luck on this project Iím shure someone with your tenacity will get it don.
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  #35  
Old 09-03-2020, 02:04 PM
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rv6ejguy rv6ejguy is offline
 
Join Date: Mar 2005
Location: Calgary, Canada
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Jessica,

My company would be happy to sponsor you with an SDS electronic fuel injection system to avoid the mixture control if you decide to modify an RV for your new ride.

I'd hope some other vendors here on VAF and elsewhere would step up to help you out as well. You are amazing and do some very worthwhile work helping and inspiring others. Who wouldn't want to be part of that?

BTW, RVs land really nicely without flaps unless the runway is short. I've done hundreds of flapless landings.
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  #36  
Old 09-03-2020, 02:14 PM
Terry Lutz Terry Lutz is offline
 
Join Date: Dec 2005
Posts: 189
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RV Colleagues, This is a terrific discussion, and an example of how we can brainstorm by ourselves and through industry contacts to innovate and make the RV both accessible and useful for Jessica.
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  #37  
Old 09-03-2020, 02:35 PM
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Ironflight Ironflight is offline
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Location: Dayton, NV
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Quote:
Originally Posted by bbsdad View Post
How about a boot to fit your feat in. Twist for rudder, for and aft for elevators, right and left for ailerons. That would leave the Other foot/leg for throttle, flaps, and brakes. Changing radios etc by voice command. That way she would have a more comfortable seating position. Also I think the 8a would be the ezest to modify. Entry/egress I think you already have a handle on. Wish I had more resources to offer, but if thereís anyway I can help feel free to ask. Good luck on this project Iím shure someone with your tenacity will get it don.
I really like the idea of a boot that would allow you to use what is essentially a three-axis joy stick. We use that type of roll/pitch/yaw hand controller in spacecraft, and it is very natural - assuming you can get the mechanical leverage you need.

What a great brainstorming session!

Paul
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  #38  
Old 09-03-2020, 02:59 PM
rockwoodrv9 rockwoodrv9 is offline
 
Join Date: Dec 2011
Location: Meridian ID, Aspen CO, Okemos MI
Posts: 2,705
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Quote:
Originally Posted by bbsdad View Post
How about a boot to fit your feat in. Twist for rudder, for and aft for elevators, right and left for ailerons. That would leave the Other foot/leg for throttle, flaps, and brakes. Changing radios etc by voice command. That way she would have a more comfortable seating position. Also I think the 8a would be the ezest to modify. Entry/egress I think you already have a handle on. Wish I had more resources to offer, but if thereís anyway I can help feel free to ask. Good luck on this project Iím shure someone with your tenacity will get it don.
I mentioned earlier a bike shoe on a pedal attached to the stick, but a boot is probably even better. My tractor has a pedal for it that you rock forward or back to go forward or back. A similar action attached to a bike pedal on a bike shoe or boot attached to the stick would give one leg - foot control of 2 axis.

I cant imagine it is comfortable for Jessica to sit like the picture so making it work under the panel will take some engineering skills!
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  #39  
Old 09-03-2020, 03:36 PM
CanyonDweller CanyonDweller is offline
 
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Location: Floydada, TX
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In Jessicaís public profile she lists an RV-10 as the RV she desires.
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  #40  
Old 09-03-2020, 03:47 PM
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scard scard is offline
 
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Location: Cedar Park, TX
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Hmm, clipless pedals, I have about 30yrs with them... As we think about mechanically coupling the foot with a control system that might be more or less sensitive, being able to quickly and naturally decouple the foot becomes just as important. That could be super fatiguing to be fully coupled all the time. Imagine turbulence where you just need to lighten your inputs for a bit.

With a little practice, I think I could fly a whole flight of aileron inputs with my knees.
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Last edited by scard : 09-03-2020 at 03:54 PM.
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