What's your favorite youtube speedpass?

On Thursday, January 23, 2014 8:18:36 AM UTC-6, kirk.stant wrote:
A question for all you aero majors out the when pulling up at high speed, should you lead with the flaps, or follow with them?

Flaps are to follow lift coefficient. As lift coefficient goes up, flaps go down. For absolute lowest drag, flaps should go down as you pull, then go back up once you are on the climbing path. A bit more negative than they would be at the current speed, as you are at less than 1 g. As you round off on the top, flaps go to the 1 g position for your current airspeed. Similarly, as you push over to leave, flaps should go negative, as you are lower lift coefficient. Set them to match speed as you reach your desired cruise.

Watch Champions of the Wave. I think it is cockpit video of Uli Schwenk in his 22. Watch his hand and the flaps as he pushes and pulls.

As to lead or follow, it has been shown that you can control pitch with flaps. But, it is also known that the elevator is a much better way to control pitch. I say, use the elevator, follow as close as you like with the flaps. For me, I don't pull hard enough to warrant pulling the flaps down in a pull. My hand is on the handle, and as I slow down, the flaps move from full negative to where I want them when I round out on top.

Steve
ZS

http://www.youtube.com/watch?v=SIdX6...C403FD6B13DC13

^ if you don't watch any of the others, you have to catch this one.

not on YouTube but my favorite low level gliding clips are pretty much all contained in the short film "Dawn Flight"

Gary says:

http://www.youtube.com/watch?v=CKhnU-6GEgg

On Thursday, January 23, 2014 8:08:19 AM UTC-5, Andrew Brayer wrote:
here's mine:



http://www.youtube.com/watch?v=2S7T81LbvIs

I had a couple I liked so posted them and here is the best:

http://www.youtube.com/watch?v=1TZD0...xbuIxYL5n-wFgw

Us folks on the ground loved the show.

Jim

Here in the East, we never have to make big pulls like that, so I generally just pull (gently) with the stick.

Something like this, Evan?
http://is.gd/AgmWBr

I've found that shadow adds a great low pass effect for the video...

https://www.youtube.com/watch?v=Fgzm1If1x9c

Old bird can still get it

E

1981 Zuni II.

http://www.youtube.com/watch?v=wb6vcIGiSd0

+1 Eta wins.

What behavior are we teaching ? Who is the next better pilot? When will the next GoPro accident come along? Just wondering -