[NSRCA-discussion] Trimming question

Mon Jan 30 13:43:56 AKST 2006

That would make it tough to land<BG>


----- Original Message ----- 
From: "Dowayne Gould" <iflyrc24 at gmail.com>
To: <tommu at cleburne.net>; "NSRCA Mailing List" 
<nsrca-discussion at lists.nsrca.org>
Sent: Monday, January 30, 2006 5:33 PM
Subject: Re: [NSRCA-discussion] Trimming question


> If you guys get this figured out without sawing the wing in two and
> installing a pattern plane in the void I will try it.
> I have a 60 size Ultra Stick that exhibits the same flight tendencies.
> I tried mixing them out but made the plane not flyable other than
> knife edge. I came to the conclusion that the Sticks were not designed
> to fly with the wing tips pointed at the ground.
> And yes the pull to the canopy is the same with either wing up.
> Dowayne
>
> On 1/30/06, tommu <tommu at cleburne.net> wrote:
>> Has it been ask if the problem is the same regardless of what side is 
>> down
>> there? This could mean a great deal if it is different.
>>
>> Tom Mullen
>> MIS Manager
>> 10 N Robinson
>> PO Box 677
>> City of Cleburne, Texas 76033-0677
>> tommu at cleburne.net
>> V 817-645-0977
>> F 817-645-2789
>>
>> -----Original Message-----
>> From: nsrca-discussion-bounces at lists.nsrca.org
>> [mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf
>> Of Ken Thompson
>> Sent: Monday, January 30, 2006 3:36 PM
>> To: NSRCA Mailing List
>> Subject: Re: [NSRCA-discussion] Trimming question
>>
>> Hello Dean,
>>
>> This is why I read all of the list's posts...I like to learn new things.
>>
>> The sub-fin would go where, under the stab or closer to the nose?  I 
>> would
>> think the placement would make a huge difference in the effect.
>>
>> Ken
>> ----- Original Message -----
>> From: Dean Pappas
>> To: NSRCA Mailing List
>> Sent: Monday, January 30, 2006 1:53 PM
>> Subject: Re: [NSRCA-discussion] Trimming question
>>
>> Hi Gang, Hi Ken,
>> The enswer probably lies in a combo of what Lance and Ron offered.
>> How much is your buddy willingg to cut or add to fix the problem.
>> A ventral strake/subfin will be a great experiment, and I am sure that a
>> bunch of us would like to hear the results.
>> Raising the stab would be terribly invasive, and also interesting.
>> Make sure the ship flies with a styraight elevator first.
>> later,
>> Dean
>>
>>
>>
>> Dean Pappas
>> Sr. Design Engineer
>> Kodeos Communications
>> 111 Corporate Blvd.
>> South Plainfield, N.J. 07080
>> (908) 222-7817 phone
>> (908) 222-2392 fax
>> d.pappas at kodeos.com
>> -----Original Message-----
>> From: nsrca-discussion-bounces at lists.nsrca.org
>> [mailto:nsrca-discussion-bounces at lists.nsrca.org]On Behalf
>> Of patterndude at comcast.net
>> Sent: Monday, January 30, 2006 1:44 PM
>> To: NSRCA Mailing List
>> Subject: Re: [NSRCA-discussion] Trimming question
>>
>> Ken,
>> Not always. In level flight the neg incidence will require up trim. In KE
>> flight, the tail has an increased weighting in the balance of forces and
>> this uptrim can be more than needed.
>> --Lance
>>
>>
>> --
>> District 6 AVP
>> www.aeroslave.com
>>
>> -------------- Original message --------------
>> From: "Ken Thompson" <mrandmrst at comcast.net>
>>
>> > Wouldn't negative incidence cause it to push to the gear, not the 
>> > canopy?
>> >
>> > Ken
>> > ----- Original Message -----
>> > From: "Lance Van Nostrand"
>> > To: "NSRCA Mailing List"
>> > Sent: Monday, January 30, 2006 12:40 AM
>> > Subject: Re: [NSRCA-discussion] Trimming question
>> >
>> >
>> > > Not many responses to this one, but here's my thought. The wing
>> incidence
>> > > is way negative and the CG is aft. I got myself into that situation 
>> > > once
>> > > and didn't catch it for a while. Inverted flight was fine but the 
>> > > plane
>> > > was
>> > > squirrely and the up elv trim was more effective in knife edge than
>> level
>> > > flight, resultin! g in canopy pull.
>> > > --Lance
>> > >
>> > > ----- Original Message -----
>> > > From: "John Pavlick"
>> > > To: "NSRCA Discussion"
>> > > Sent: Friday, January 27, 2006 10:31 PM
>> > > Subject: [NSRCA-discussion] Trimming question
>> > >
>> > >
>> > >> Ok here's a good one. The owner of the L.H.S. asked me what I 
>> > >> thought
>> > >> about
>> > >> this and I couldn't come up with a good answer. He has a Hangar 9 
>> > >> Ugly
>> > >> Stik - the real big one. I can't remember exactly what it's called.
>> Guess
>> > >> it
>> > >> has a gas motor in it. It's big. He says he has it trimmed so it 
>> > >> will
>> fly
>> > >> inverted with just a very slight bit of down elevator (almost none).
>> Ok,
>> > >> so
>> > >> it's not nose heavy, maybe even a little tail heavy. Now, when he 
>> > >> flies
>> > >&! gt; it
>> > >> knife edge (either side) it pulls severely to the canopy. I mean 
>> > >> like
>> it
>> > >> will fly a complete circle. It needs almost 3/4 down elevator to fly
>> > >> straight. It's beyond a mix - fix. He also says that it has a bit of
>> roll
>> > >> couple when flying level (not knife edge) but it doesn't pitch 
>> > >> severely
>> > >> up
>> > >> or down under these conditions. Any thoughts? I guess you can rule 
>> > >> out
>> > >> C.G.
>> > >> because if anything it should pull to the belly considering how it's
>> > >> trimmed
>> > >> to fly level upright and inverted. I haven't flown it so I can't add
>> too
>> > >> much more. He builds OK so I don't think there's anything way out of
>> > >> alignment, but again I haven't seen it yet so maybe there is. What
>> should
>> > >> I
>> > >> look for if I get my hands on it to try and help him?
>> > >>
>> > >> John Pavlick
>> > >> http://www.idseng! .com
>> > >>
>> > >> --
>> > >> No virus found in this outgoing message.
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>> > >> Version: 7.1.375 / Virus Database: 267.14.23/243 - Release Date:
>> 1/27/06
>> > >>
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