[NSRCA-discussion] Integral Landing gear

Sat Feb 27 05:32:06 AKST 2010

It is fun to watch these threads, but getting a little predictable..  

Phase A) It almost always starts with a simple, legitimate request for helpful information 
Phase B) for which a few useful answers are given.

But you know the wolves are out there circling. 

Phase C)  Finally one dives in and takes a bite with a facetious answer.  
Phase D)  Then the whole pack dives in and the fur flies everywhere.
Phase E)  Eventually things devolve into glow vs. electric 
Phase F)  Then Futaba vs. JR  (ya know the 14MZ has a built-in mix to mix out the effect of the steel plate)

who's next?

Ed

----- Original Message ----
From: Verne Koester <verne at twmi.rr.com>
To: General pattern discussion <nsrca-discussion at lists.nsrca.org>
Sent: Fri, February 26, 2010 5:04:39 PM
Subject: Re: [NSRCA-discussion] Integral Landing gear

About 1/3 the weight of the angle plate.... You'll probably STILL make weight if it's glow-powered.   ;>)

Verne

-----Original Message-----
From: nsrca-discussion-bounces at lists.nsrca.org [mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Bob Kane
Sent: Friday, February 26, 2010 3:22 PM
To: General pattern discussion
Subject: Re: [NSRCA-discussion] Integral Landing gear

I followed your instructions, but pushed the angle plate into the cabosil and let it cure before I read the part about the wax paper.  How much tail weight will I need to balance the angle plate?

Disclaimer:  This is intended as a humorous reply only. No actual angle plates or Integral Fuselages were harmed.

Bob Kane
getterflash at yahoo.com

--- On Fri, 2/26/10, Verne Koester <verne at twmi.rr.com> wrote:

> From: Verne Koester <verne at twmi.rr.com>
> Subject: Re: [NSRCA-discussion] Integral Landing gear
> To: "'General pattern discussion'" <nsrca-discussion at lists.nsrca.org>
> Date: Friday, February 26, 2010, 1:21 PM
> 
> 
> 
>  
>  
> 
> 
> 
> 
> 
> 
>  
> 
> 
> 
> I added 1/32” to the face of
> the nose ring on the fuse on the
> left side which increased the angle by 1/32”. 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
> 1/32” 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:
> 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" <verne at twmi.rr.com>
> 
> To: "General pattern discussion"
> <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: 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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