[NSRCA-discussion] Integral Landing gear

Fri Feb 26 12:21:15 AKST 2010

Do you really think that would make much of a Differential????? lol...

At 03:59 PM 2/26/2010, you wrote:
>With all this faboolous input maybe the name needs changed to DERIVATIVE....
>
>I forgot....that's taken
>
>MattK
>
>
>
>-----Original Message-----
>From: John Gayer <jgghome at comcast.net>
>To: General pattern discussion <nsrca-discussion at lists.nsrca.org>
>Sent: Fri, Feb 26, 2010 3:10 pm
>Subject: Re: [NSRCA-discussion] Integral Landing gear
>
>Thanks everyone and particularly Verne who not 
>only answered all the questions but described 
>how to make the changes. Great stuff. Believe 
>I'm all set to complete the Integral now.
>John
>
>Verne Koester wrote:
>>I added 1/32â€ to the face of the nose ring on 
>>the fuse on the left side which increased the 
>>angle by 1/32â€. If you do the math, it 
>>equates to adding about .5 degrees of right 
>>thrust. The way I did it was to block the fuse 
>>up on my table at .5 degrees positive as 
>>compared to the stab which I used as my 0 
>>reference line. Then I glued a little bitty 
>>square of 1/32â€ balsa to the left side of the 
>>nose ring on the face near the outer edge. Then 
>>I applied a very thick, pasty mixture of 
>>cabosil and resin to the entire face of the 
>>nose ring and pushed a large, steel angle plate 
>>up against it. I wiped off the excess, and let 
>>it cure, using wax paper as a release film 
>>between the angle plate and resin. Since the 
>>fuse was sitting at .5 positive and the angle 
>>plate was 90 degrees to the table, the end 
>>result was that my nose ring now has .5 down 
>>thrust when the fuse is sitting at 0. The 
>>little square of 1/32 balsa canted the angle 
>>plate .5 degrees to the right. This all sounds 
>>very heavy, but the weight gain was actually 
>>about 4 grams. You may need to think about this 
>>for a second, but if your down thrust is at 0 
>>when the fuse is at .5 positive, then the down 
>>thrust will be at -.5 when the fuse is at 0.
>>
>>Verne
>>
>>From: 
>><mailto:nsrca-discussion-bounces at lists.nsrca.org>nsrca-discussion-bounces at lists.nsrca.org 
>>[mailto:nsrca-discussion-bounces at lists.nsrca.org 
>>] On Behalf Of Vicente "Vince" Bortone
>>Sent: Friday, February 26, 2010 9:30 AM
>>To: General pattern discussion
>>Subject: Re: [NSRCA-discussion] Integral Landing gear
>>
>>Verne,
>>
>>Just curiosity.  When you said "add 1/32 right 
>>thrust", means to add to the one is already set 
>>at the nose ring?  Is 1/32" is at the tip of the prop?
>>
>>Thanks,
>>
>>Vicente "Vince" Bortone
>>
>>----- Original Message -----
>>From: "Verne Koester" <mailto:verne at twmi.rr.com><verne at twmi.rr.com>
>>To: "General pattern discussion" 
>><mailto:nsrca-discussion at lists.nsrca.org><nsrca-discussion at lists.nsrca.org>
>>Sent: Friday, February 26, 2010 12:28:31 AM GMT -06:00 US/Canada Central
>>Subject: Re: [NSRCA-discussion] Integral Landing gear
>>
>>John,
>>With the stab at 0, make the wing .5 positive, reduce the down thrust to .5
>>down, and ADD 1/32 right thrust. I'm currently finishing my third one and
>>got it right on the second one. Now I'm just duplicating it. Actually, the
>>first one flew great but needed some mixing. With the settings I just gave
>>you, it'll track straight forever on either knife edge with no mix. The
>>extra right thrust was to eliminate a slight left drift at the top of tall
>>verticals. I left the stab at the factory position and called that 0. Your
>>wing will actually be slightly negative to that so you'll need to increase
>>the incidence to .5. The nose ring has a little over 2 degrees down so
>>you'll need to remove 1.5 degrees from that. Can't help on the gear, I used
>>Bolly F3A Longs. BTW, set the CG at the LE of the wing tube or just a little
>>rearward of that, like 1/8" or so. Hope this helps.
>>
>>Verne Koester
>>
>>-----Original Message-----
>>From: 
>><mailto:nsrca-discussion-bounces at lists.nsrca.org>nsrca-discussion-bounces at lists.nsrca.org
>>[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of John Gayer
>>Sent: Friday, February 26, 2010 12:39 AM
>>To: NSRCA Mailing List
>>Subject: [NSRCA-discussion] Integral Landing gear
>>
>>
>>The landing gear legs I received with my Integral weigh 6 ounces and are
>>very rigid as well. I noticed that when Jason listed the weights of the
>>components on RC Universe that the gear legs were listed at 3.2 ounces
>>which is a substantial difference.
>>This will be powered by a YS 170. I haven't checked yet but I intend to
>>add adjusters if necessary to achieve stab incidence of 0.0 degrees and
>>a wing incidence of +0.5 degrees.
>>
>>  I have three questions that I would like to resolve before I get any
>>further along.
>>
>>1. Is there a replacement gear that is lighter and in particular more
>>flexible?  Height of the gear should be about 8 inches.
>>2. Should the downthrust be reduced from the approximately 2 degrees
>>built into the nose ring to about 0.5 degrees down or ?
>>3. Should the sidethrust be reduced?
>>
>>Would appreciate help from those of you who have already run into these
>>problems and found solutions that are working for you.
>>
>>Thanks
>>
>>
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