Onex tailwheel

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Onex tailwheel

Postby johnnn » Thu May 04, 2023 8:49 am

What are the limits to winching a Onex onto a trailer, hooking onto the tail wheel? I have the impression that I could easily pull something out of place. What are your thoughts and experience? John
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Re: Onex tailwheel

Postby 13brv3 » Thu May 04, 2023 9:27 am

I've done quite a few full throttle tests with the tailwheel tied to my truck. On a 912, that's probably around 400 lbs. I don't think I'd have any hesitation to winch the plane onto a normal (fairly low, long ramps) trailer using the tailwheel.
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Onex- Rotax 912 (130 hours and counting)
Fixed wing, gyroplane, A&P
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Re: Onex tailwheel

Postby GraemeSmith » Thu May 04, 2023 11:39 am

I'm thinking the "limit" is the shear strength of the bolt holding the wheel to the rod or the rod to the bracket.
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Re: Onex tailwheel

Postby Bryan Cotton » Thu May 04, 2023 11:58 am

GraemeSmith wrote:I'm thinking the "limit" is the shear strength of the bolt holding the wheel to the rod or the rod to the bracket.

Exactly, and it's in double shear. Boat loads of capacity.
Bryan Cotton
Poplar Grove, IL C77
Waiex 191 N191YX
Taildragger, Aerovee, acro ailerons
dual sticks with sport trainer controls
Prebuilt spars and machined angle kit
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Re: Onex tailwheel

Postby daleandee » Thu May 04, 2023 12:48 pm

This is actually a great question as I hangar on pavement where I am now but I also have access to a hangar at a grass field (my plane loves a grass field!) and the grass comes all the way up to the edge of the slab at the door.

Although the ground is even, rolling the plane back into the hangar takes quite a pull on the tailwheel (using the factory size tires) unless I have an assistant to push from the front. There is a winch mounted to the rear wall of the hangar but I've not used it as I wasn't certain how much pull I could put on the tailwheel bracket.

The current plan is to put some pavement in front of the hangar to make it easy to roll the plane inside. Any great ideas are welcomed!

Dale
3.0 Corvair/Tailwheel
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Re: Onex tailwheel

Postby Bryan Cotton » Thu May 04, 2023 1:58 pm

AN3 bolt, 76ksi, 1049 double shear strength by my calcs.
Bryan Cotton
Poplar Grove, IL C77
Waiex 191 N191YX
Taildragger, Aerovee, acro ailerons
dual sticks with sport trainer controls
Prebuilt spars and machined angle kit
Year 2 flying and approaching 200 hours December 23
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Re: Onex tailwheel

Postby DCASonex » Fri May 05, 2023 8:10 am

"and the grass comes all the way up to the edge of the slab at the door." Perhaps a lawn mower might be a more practical solution. :-)
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Re: Onex tailwheel

Postby daleandee » Fri May 05, 2023 12:19 pm

DCASonex wrote:"and the grass comes all the way up to the edge of the slab at the door." Perhaps a lawn mower might be a more practical solution. :-)
David A.


There is a mower in the hangar ... 8~)
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Re: Onex tailwheel

Postby daleandee » Fri May 05, 2023 12:20 pm

Bryan Cotton wrote:AN3 bolt, 76ksi, 1049 double shear strength by my calcs.


I'm a bit more concerned about the bulkheads the tailwheel bracket is fastened to ...
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