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Author Topic: Stationary and main flap sizes  (Read 995 times)

Offline Leester

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Stationary and main flap sizes
« on: October 01, 2007, 11:44:59 AM »
I am building a wing designed to be 58", IB wing panel is 29.5" with a 23 1/4" main flap and a 4" stationary flap. The OB wing panel is 28.5" with a 23 3/4" main flap and a 2 1/2" stationary flap. I am downsizing this wing to 55" so it will fit in the car. It will be 1 1/2" shorter on each wing panel, keeping the out board flap 1/2" larger what would be the best way to lose the 1 1/2" on each panels flaps  ??? ???

TIA
Leester
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Offline Dennis Adamisin

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Re: Stationary and main flap sizes
« Reply #1 on: October 01, 2007, 12:54:01 PM »
Leester:
I would not proportion, but keep the same linear dimension (4" & 2.5")  on the stationary flap.
Denny Adamisin
Fort Wayne, IN

As I've grown older, I've learned that pleasing everyone is impossible, but pissing everyone off is a piece of cake!

Offline Leester

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Re: Stationary and main flap sizes
« Reply #2 on: October 01, 2007, 07:02:20 PM »
Thanks Dennis, I'll do just that.
Leester
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Offline Steve Helmick

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Re: Stationary and main flap sizes
« Reply #3 on: October 01, 2007, 07:19:05 PM »
I wuz gonna say "saw". Maybe not the answer you were looking for?  H^^ Steve
"The United States has become a place where professional athletes and entertainers are mistaken for people of importance." - Robert Heinlein

In 1944 18-20 year old's stormed beaches, and parachuted behind enemy lines to almost certain death.  In 2015 18-20 year old's need safe zones so people don't hurt their feelings.

Offline Leester

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Re: Stationary and main flap sizes
« Reply #4 on: October 01, 2007, 08:02:33 PM »
Steve, I was prepared for that answer, supprised it didn't come sooner  j1 j1 na#
Leester
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Offline Geoff Goodworth

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Re: Stationary and main flap sizes
« Reply #5 on: October 02, 2007, 05:45:47 AM »
If you are making a change to the wing span this radical, are you scaling the whole model?

Irrespective, I would think about reducing the asymmetry to 1/2" as well.

Cheers, Geoff

Offline Leester

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Re: Stationary and main flap sizes
« Reply #6 on: October 03, 2007, 01:43:49 AM »
Geoff: I didn't think a 5% reduction was Radical, the rest of the plane is staying the same.
Leester
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Offline Geoff Goodworth

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Re: Stationary and main flap sizes
« Reply #7 on: October 03, 2007, 06:34:13 AM »
Lee

If you are reducing the entire model by 5%, I agree with you but if you are only reducing the span of the wing other issues come into play and I think that 5% is significant.  Radical was probably too strong a word but if you are trying to create a version of a plane that you like but needs to fit in a small car, scale the model rather than reduce the span.   H^^

Cheers, Geoff

Offline Dennis Adamisin

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Re: Stationary and main flap sizes
« Reply #8 on: October 03, 2007, 06:41:01 AM »
If you are making a change to the wing span this radical, are you scaling the whole model?

Irrespective, I would think about reducing the asymmetry to 1/2" as well.

Cheers, Geoff

Leester:
Geoff makes a good point, let me offer a similar thought - if you are clipping the wings anyway, why not just make it equal span?  I would lobby for 4" stationary flap, though some folks are promoting larger flap area on the o/b side.  I have no direct experience with that...
Denny Adamisin
Fort Wayne, IN

As I've grown older, I've learned that pleasing everyone is impossible, but pissing everyone off is a piece of cake!

Offline Leester

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Re: Stationary and main flap sizes
« Reply #9 on: October 04, 2007, 07:01:21 PM »
Well the wing is already built, so I can't change panel sizes. My guess is it's in the 580 to 590 sq.in. range, the fusalage is going to be profile close to the Cardinal in size so I'm hoping that should be OK. I have reduced the Elevators and Stabilizer to the same size as the Cardinal's also. It's beginning to look like I should have just bought a Pick up.  LL~ LL~ LL~ LL~ LL~

Thanks for all the great info.
Leester
ama 830538


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