Re: [ULF-1] No dihedral in ULF-1?

From: Member 18
Date: 2010-02-19 03:39 UTC-07:00
Message: #0222

A high wing design with a large vertical tail often needs little or no 
dihedral for satisfactory roll stability. At low airspeeds the ailerons 
need to be powerful enough to overcome stability in order to give 
satisfactory roll control down to touchdown speeds. The wing actually 
has some dihedral in that the top surface is horizontal and the bottom 
is tapered upward from root to tip.

Chris

Member 1 wrote:

> I've wondered that too. Dieter, are you with us?
>
> Doug
>
>
> On [phone]:28 PM, Member 55 wrote:
>
>> Can anyone comment on why there is no dihedral in the ulf-1?  Does 
>> some other feature give some roll stability?
>>
>> Thanks,  Bret
>
>
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