[NSRCA-discussion] Integral Landing gear

Fri Feb 26 18:32:06 AKST 2010

Hmmmmm!!! Helium filled micro baloons. I like that a lot but don't care for the price. I heard the cost is something like 1000$ per gram

Lessee, 1 gram of this stuff is so fluffy it takes up about the volume of one of the current crop of pachyderm airplanes. 

MattK

-----Original Message-----
From: Bob Kane <getterflash at yahoo.com>
To: General pattern discussion <nsrca-discussion at lists.nsrca.org>
Sent: Fri, Feb 26, 2010 10:20 pm
Subject: Re: [NSRCA-discussion] Integral Landing gear

I knew there would be a simple fix, thank you Obi-Ron.
Bob Kane
etterflash at yahoo.com

-- On Fri, 2/26/10, Ron Van Putte <vanputte at cox.net> wrote:
> From: Ron Van Putte <vanputte at cox.net>
 Subject: Re: [NSRCA-discussion] Integral Landing gear
 To: "General pattern discussion" <nsrca-discussion at lists.nsrca.org>
 Date: Friday, February 26, 2010, 3:55 PM
 No tail weight is necessary. 
 Carefully mix some helium-filled  
 microballons with 30 minute epoxy inside a large plastic
 bag and  
 apply to the firewall directly opposite where the large
 side of the  
 angle plate is installed.

 Ron

 On Feb 26, 2010, at 2:22 PM, Bob Kane wrote:

 > 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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 >>
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 >>
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 >>
 >>
 >>
 >>
 >>
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 >>
 >>
 >>
 >>
 >>
 >>
 >>
 >>
 >>
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