Re: 40% Stab size or 20%?

From: ykleetx <ykleetx_at_gmail.com>
Date: Sat, 23 Oct 2010 03:29:27 -0000

Hi, Don,

Thanks for your post. I'm surprised that stability is an issue. I assume that when using a much smaller stab, like 10 or 20%, while maintaining the same boom length, you will have to move the wing back an appropriate amount to gain pitch equilibrium and stability. In the design program, this is exactly what I had to do. I decreased stab size and moved the wing back to get SSM back to about 10% (10% is roughly what I target for in my EZBs).

Some clarification would be appreciated. Thank you.

-Kang

--- In Indoor_Construction_at_yahoogroups.com, Don Slusarczyk <don@...> wrote:
>
> On 10/22/2010 10:07 PM, ykleetx wrote:
> > With the Hunt design program, many have noticed that a stab less than 50% gives better results. I recently tried 40,30,20,and 10% stabs for my EZB using the Hunt program. I found that the 10% stab performs significantly better than 40%. Is this real? Or is it just an anomalous result from the program? I'm curious enough that I will do some experimentation in the future.
>
> This was tried and it did not work in the real world. The EZBs were not
> stable enough when flown.
>
> Don
>
Received on Fri Oct 22 2010 - 20:29:33 CEST