Crooked Tail Feathers
06-28-2003 | 03:43 PM
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From: Corvallis, OR
Crooked Tail Feathers
I started building a trainer kit back in the 80's when my would be instructor retired and moved out of town. The kit was put aside.
I recently started to finish the kit, thinking it would be good kit building training, even if I didn't need a trainer anymore.
I rubber banded the wing on it for the first time yesterday and sure enough, the tail feathers I glued on nearly 20 years ago are a rotated a few degrees counter clock wise when viewing the plane from the prop end. Holding a transparent protractor up to it, and aligning it with the wing, it looks like 3-4 degrees.
Other than having to listen to my fellow club members commenting on my building skills, is the 3 or 4 degrees likely a big deal? Will I be able to trim it up with just a couple of clicks of trim? It is a trainer and has a fair amount of dihedral in the flat bottom wing.
Thanks for any feedback.
Dave
I recently started to finish the kit, thinking it would be good kit building training, even if I didn't need a trainer anymore.
I rubber banded the wing on it for the first time yesterday and sure enough, the tail feathers I glued on nearly 20 years ago are a rotated a few degrees counter clock wise when viewing the plane from the prop end. Holding a transparent protractor up to it, and aligning it with the wing, it looks like 3-4 degrees.
Other than having to listen to my fellow club members commenting on my building skills, is the 3 or 4 degrees likely a big deal? Will I be able to trim it up with just a couple of clicks of trim? It is a trainer and has a fair amount of dihedral in the flat bottom wing.
Thanks for any feedback.
Dave
06-28-2003 | 04:42 PM
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From: Mary Esther, Florida, FL
Crooked Tail Feathers
Dave:
It will fly fine.
The misalignment will cause a slight bit of yaw coupling to the elevator, but with a flat stab you wont notice anything in level flight.
With up elevator it will yaw a little bit right, down elevator will tend left.
But not enough to make tearing it apart worthwhile.
Is it were supposed to be a highly capable aerobatic ship it would be different.
Bill.
It will fly fine.
The misalignment will cause a slight bit of yaw coupling to the elevator, but with a flat stab you wont notice anything in level flight.
With up elevator it will yaw a little bit right, down elevator will tend left.
But not enough to make tearing it apart worthwhile.
Is it were supposed to be a highly capable aerobatic ship it would be different.
Bill.
06-28-2003 | 05:23 PM
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From: Corvallis, OR
Crooked Tail Feathers
Thanks Bill!
I'll just brace myself for some good natured ribbing ...
Its a 15-20 sized plane with a 'convenient' OS25 FX mounted to it. I don't know how areobatic its going to be, but I'm thinking it will be faster than I'm used to ... maybe not ...
I suppose that if I really wanted to do it right ... I'd fix the tail, put a nice streamline nose of it, build a semi-semetric, extended and reinforced wing for it, and sling a couple of 10's or 15's under the wings to give it that B-26 look ....
... but since it's taken me 18 years to get it this far, maybe I should just stick with the plan in hand.
Cheers!
Dave
I'll just brace myself for some good natured ribbing ...
Its a 15-20 sized plane with a 'convenient' OS25 FX mounted to it. I don't know how areobatic its going to be, but I'm thinking it will be faster than I'm used to ... maybe not ...
I suppose that if I really wanted to do it right ... I'd fix the tail, put a nice streamline nose of it, build a semi-semetric, extended and reinforced wing for it, and sling a couple of 10's or 15's under the wings to give it that B-26 look ....
... but since it's taken me 18 years to get it this far, maybe I should just stick with the plan in hand.
Cheers!
Dave
06-28-2003 | 05:58 PM
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From: Mary Esther, Florida, FL
Crooked Tail Feathers
Dave:
Look here:
http://www.rcuniverse.com/showthread...79#post1116662
Check post #9 for a really nice looking twin bash on a Sig Kadet.
Bill..
Look here:
http://www.rcuniverse.com/showthread...79#post1116662
Check post #9 for a really nice looking twin bash on a Sig Kadet.
Bill..
06-28-2003 | 07:39 PM
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From: Corvallis, OR
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Thanks Bill,
hmmmm ... maybe a twin Aircruiser 25 is not such a bad idea afterall. I'd hate having a perfectly good fuselage lying around with no one to fly it...
Here I thought kit bashing was a bad thing ... and it turns out I've been kit bashing for 30 years.
When I was a kid I took a wing from a rubber band powered Hawker Hurricane ... added twin booms, twin rudders, one cox 0.049, and made myself a control line plane out of it. It flew pretty well until I plowed it in going straight down and snapped off the tail feathers. After that, I never could get the tail light enough to balance properly ...
Cheers!
hmmmm ... maybe a twin Aircruiser 25 is not such a bad idea afterall. I'd hate having a perfectly good fuselage lying around with no one to fly it...
Here I thought kit bashing was a bad thing ... and it turns out I've been kit bashing for 30 years.
When I was a kid I took a wing from a rubber band powered Hawker Hurricane ... added twin booms, twin rudders, one cox 0.049, and made myself a control line plane out of it. It flew pretty well until I plowed it in going straight down and snapped off the tail feathers. After that, I never could get the tail light enough to balance properly ...
Cheers!
