Author Topic: Flap Type and Efficiency  (Read 6720 times)

Offline hitech

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Re: Flap Type and Efficiency
« Reply #90 on: November 04, 2009, 02:55:42 PM »
Hitech
I posted in haste I should have rephrased my question. I thought I was asking if you modeled the tail plane forces without the effect of the down wash from the main wing.

Edit: Slightly off topic. I believe you model spiral slipstream on the tail, is it possible when slow at a high AOA to drop the tail out of the slipstream?

We do model wing blanking FLS.

HiTech

Offline Stoney

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Re: Flap Type and Efficiency
« Reply #91 on: November 04, 2009, 03:58:26 PM »
We do model wing blanking FLS.

HiTech

That's cool to know...another feather, so to speak... :)
"Can we be incorrect at times, absolutely, but I do believe 15 years of experience does deserve a little more credence and respect than you have given from your very first post."

HiTech

Offline thorsim

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Re: Flap Type and Efficiency
« Reply #92 on: November 04, 2009, 04:24:39 PM »
pretty sure WB pitches down ...
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Offline Ex-jazz

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Re: Flap Type and Efficiency
« Reply #93 on: November 04, 2009, 04:26:16 PM »
<snip>"effect of the down wash from the main wing."<snip>

How the wing down wash is effecting to the tail (elevator) during the turning?

The tail AoA is increasing/decreasing?  :uhoh

Offline hitech

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Re: Flap Type and Efficiency
« Reply #94 on: November 04, 2009, 04:51:17 PM »
That's cool to know...another feather, so to speak... :)

We also model the change in The LCO do to the speed of an AOA change. I.E. basically increasing camber do to a changing AOA.

HiTEch

Offline Soulyss

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Re: Flap Type and Efficiency
« Reply #95 on: November 04, 2009, 05:03:41 PM »
Whenever I try to read these threads about flight modeling and principles of aerodynamics, especially when terms like CL and CM curves, AoA, LCO, and Camber start getting tossed around I'm reminded of the following bit, it's right around the 1:15 minute mark.

http://www.youtube.com/watch?v=3mJoHqmtFcQ&feature=related

 :)
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