Re: EZB static stability margin

From: ykleetx <ykleetx_at_gmail.com>
Date: Tue, 25 May 2010 00:33:25 -0000

Don,

Thanks for your reply. It's interesting that 2-5% based on Hunt's program is good enough. I would not call any of my models "stiff", since I'm always trading off with weight. My LPP flies well at about 2% static margin. I have my EZB set at 10% right now.

Would the air at the mini-dome in Johnson City be considered smooth enough to fly at 2-5%?

-Kang

--- In Indoor_Construction_at_yahoogroups.com, Don Slusarczyk <don@...> wrote:
>
> If that is the program you are using then you can fly most duration
> models in the 2-5% range provided the models are some what stiff. Very
> floppy models like EZB tend to fly better with a range closer to 10%,
> you can go less but the trim must be spot on or the site has to have
> smooth air. Also for pennyplanes I use to go closer to 10% as well as
> they were less troublesome with high torque launches. "Reg" is the name
> of a friend of Bernie's (an aero engineer) who supplied him with the
> formula for NP
>
> Don
>
>
> > Nick,
> >
> > I didn't realize that people are flying so "aggressively" with margin near zero for all classes. I have been flying 25 to 40% with my F1Ls. What margins do you use for your F1D and ministick?
> >
> > Also, what are people using for the definition of the Neutral Point? In Bernie Hunt's program, he calls it "Reg's Neutral Point". Does anyone know who is Reg?
> >
> > -Kang
> >
> >
>
Received on Tue May 25 2010 - 15:12:12 CEST