[NSRCA-discussion] triangulation trimming

[Ron Van Putte]

He's probably at work.

Ron Van Putte

On Mar 17, 2008, at 4:57 PM, Nat Penton wrote:

> Where is Bryan when you need him <G>
> ----- Original Message -----
> From: <adriancwong at earthlink.net>
> To: "NSRCA Mailing List" <nsrca-discussion at lists.f3a.us>
> Sent: Sunday, March 16, 2008 10:17 PM
> Subject: Re: [NSRCA-discussion] triangulation trimming
>
>
>> Bryan,
>>
>> What cause the plane to pull to the belly on one rudder, and to  
>> the canopy
>> on the other rudder during knife edge.
>>
>> Thx,
>>
>> Adrian
>>
>> -----Original Message-----
>>> From: shinden1 at cox.net
>>> Sent: Mar 16, 2008 7:17 PM
>>> To: NSRCA Mailing List <nsrca-discussion at lists.nsrca.org>
>>> Subject: Re: [NSRCA-discussion] triangulation trimming
>>>
>>> Lance you need to find out exactly where the wing  inc . is.
>>> I think if you move your c/g back a little it will help take some  
>>> of the
>>> up trim out But you prob need more pos inc, in the wing so we  
>>> need to know
>>> where you are at right now to determine exactly where to go
>>> Bryan
>>> ---- Lance Van Nostrand <patterndude at tx.rr.com> wrote:
>>>> Bryan,
>>>>
>>>> The discussion list moves faster than I can try this stuff out.   
>>>> Too bad
>>>> I
>>>> have to work...
>>>>
>>>> I first only moved my CG forward significantly and have improved  
>>>> overall
>>>> tracking.  It was windy Saturday and wind penetration were good.
>>>> Bryan's
>>>> suggestion was correct on CG movement to make this improvement.   
>>>> However
>>>> with the forward CG (and resultant uptrim)  it pulls to the canopy
>>>> slightly
>>>> on downlines.  At this point I noticed that during inverted flight,
>>>> rudder
>>>> input caused a pull to the belly (plane rose).  This was weird.   
>>>> I then
>>>> raised the incidence 2 turns and it fixed the inverted flight  
>>>> problem
>>>> but it
>>>> seemed to make the canopy pull worse.  Interestingly, KE flight  
>>>> was not
>>>> noticeably affected.
>>>>
>>>> The other affect is that inverted 45 downlines drop toward earth  
>>>> faster
>>>> than
>>>> upright 45s (which track nicely).  Before this change, both 45s  
>>>> were
>>>> fine.
>>>>
>>>> Is this the expectation?
>>>>
>>>> --Lance
>>>>
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