McGyverisms was...(RE: Tuned pipes for dummies....feedback so ught???)

Wed Aug 18 14:39:42 AKDT 2004

How about using the wood from cigar boxes instead of lite ply? Velcro zapped
to propeller hubs to balance them? Make your own pushrods from welding rod
instead of pricey titanium or CF rods?

Rich  :)

-----Original Message-----
From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org] On
Behalf Of richard.lewis
Sent: Wednesday, August 18, 2004 6:32 PM
To: discussion at nsrca.org
Subject: McGyverisms was...(RE: Tuned pipes for dummies....feedback
sought???)

Florist wire is also very nice for making safety wires, fishing thing into
small places, etc...It can be bought at michaels/hobby lobby(the craft
store) and comes in green coated or bare variety.  It thinner and more
flexible than bailing wire (alas..also weaker).

Tell us what other odd items you use in modelling.  Or, if you don't want to
admit anything embarrassing, tell us what "a freind" of yours uses...:)

Richard

-----Original Message-----
From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org]On
Behalf Of Fletcher, Richard
Sent: Wednesday, August 18, 2004 5:21 PM
To: 'discussion at nsrca.org'
Subject: RE: Tuned pipes for dummies....feedback sought???

<VBG!>  That's funny about bailing wire. I actually find it to be very
useful material. I should refer to it be a "kool" name, like "thin and
flexible metal attachment strapping material."

I don't know what temps the Pefa's run at but one loosened up in the
coupler, backed up and pressed against the back end of the lite ply canister
box and burnt a clean, round hole right through it! I was wondering why the
monokote at thee back of the fuse kept detaching, it was the prop blast into
the fuse!

I pulled the cans out after well over 100 flights and the "MacGyver gaskets"
have held up well, still in one piece! I imagine that these will last
forever on a glow setup as they run a lot cooler then gas. And they are much
smaller so generate less heat.

BTW, I saw all your posts I think last year on the SA list when you were
using ZDZ 40s and 80s but now I see you are back into pattern, which is
where I first noticed your name a number of years ago. So I guess you are
like me, you like all kinds of model planes!

Thanks, Rich

-----Original Message-----
From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org] On
Behalf Of Bob Pastorello
Sent: Wednesday, August 18, 2004 6:10 PM
To: discussion at nsrca.org
Subject: Re: Tuned pipes for dummies....feedback sought???

[we don't PUBLICLY acknowledge the use of "baling wire"] <vbg>

I'd always read that the Pefa cans ran very hot on 3W's...how much time is
on your "McGyver Gasket" ?

Bob Pastorello
rcaerobob at cox.net
www.rcaerobats.net

----- Original Message -----
From: "Fletcher, Richard" <Richard.Fletcher at gs.com>
To: <discussion at nsrca.org>
Sent: Wednesday, August 18, 2004 4:29 PM
Subject: RE: Tuned pipes for dummies....feedback sought???

> Hiya Bob!
>
>     Glad to be able to contribute one to you who has given all of us 
> so
many
> good ideas. What happened was the Pefa canisters on my 3W 150 were 
> running so hot that they burnt right through tie raps, neoprene 
> O-rings and
silicon
> fuel tubing. So I had to figure something out. I went to a Pep Boys 
> and found that the highest temperature rating on gasket material they 
> carry is 350 so I bought a roll of it. Then I figured if I added the 
> coating of orange RTV that it MAY do the job. In order to not distort 
> or dent the
cans
> on the mount I also cut up tuna fish cans which is soft steel. So I
wrapped
> the home made gaskets and steel bands, about 1 1/2" wide, around the 
> mounting points on the cans and then attached the cans to the plywood 
> fuse mounts with pieces of baling wire. It has held up very well. I 
> just fitted my big IMAC plane with pipes and used this gasket material 
> in a similar mounting arrangement and so far so good.
>
>
>
> Thanks, Rich
>
>
>
>
> -----Original Message-----
> From: discussion-request at nsrca.org 
> [mailto:discussion-request at nsrca.org]
On
> Behalf Of Bob Pastorello
> Sent: Wednesday, August 18, 2004 5:21 PM
> To: discussion at nsrca.org
> Subject: Re: Tuned pipes for dummies....feedback sought???
>
>
> That's a GREAT idea, Richard!!! NEVER even thought of a "make your 
> own"....and for me, THAT is pretty amazing....thanks for sharing that 
> one. It goes in my "tips" folder.
>
> Bob Pastorello
> rcaerobob at cox.net
> www.rcaerobats.net
>
>
> ----- Original Message -----
> From: "Fletcher, Richard" <Richard.Fletcher at gs.com>
> To: <discussion at nsrca.org>
> Sent: Wednesday, August 18, 2004 4:16 PM
> Subject: RE: Tuned pipes for dummies....feedback sought???
>
>
> > Best thing to do is to insulate the pipe from the mount and clamp or
> O-ring.
> > Best material I have found is high temperature RTV gasket material. 
> > I make my own using automotive high temp gasket material rated at 
> > 350 degrees and laminating high temp RTV onto it by placing two 
> > parallel pieces of 1/8
> balsa
> > spaced about 4 inches apart on the automotive gasket material and 
> > then squeegee on the RTV. I had to develop this technique for 
> > mounting
> canisters
> > and pipes on my gas engines which run even hotter then 4S engines.
> >
> >
> >
> > Rich
> >
> >
> >
> > -----Original Message-----
> > From: discussion-request at nsrca.org 
> > [mailto:discussion-request at nsrca.org]
> On
> > Behalf Of White, Chris
> > Sent: Wednesday, August 18, 2004 4:12 PM
> > To: discussion at nsrca.org
> > Subject: Tuned pipes for dummies....feedback sought???
> >
> >
> > help????
> >
> > I have a new Arresti III that will be using a YS 140 FZ and the new
> coupler
> > from Central with an (enclosed) ES carbon fiber pipe and the Hyde 
> > ARIA mount. Merle Hyde says the pipe needs to be pretty flexible in 
> > mounting to avoid header breakage. He also warns to tighten the hyde 
> > mount screws aggressively.
> >
> > My thought was to mount a single clamp on the CG of the pipe with a 
> > Dave Brown hush clamp pipe mount.  (O ring retention on a composite
> > clamp)
> I
> > have used this mounting style very successfully on a Greve pipe / 
> > Webra
> 145
> > combo, but have questions about the durability based on what I hear 
> > about pipe heat increase when running a 4 stroke.
> >
> > Can anyone tell me whether they have experience with the Dave Brown
mount
> > and four stroke pipes?   Do carbon fiber pipes get hotter than aluminum
> > ones???  How do you typically retain a carbon fiber pipe without 
> > worrying about pipe distortion?
> >
> > Chris
> >
> >
> > -----Original Message-----
> > From: discussion-request at nsrca.org 
> > [mailto:discussion-request at nsrca.org]On
> > Behalf Of Richard Strickland
> > Sent: Wednesday, August 18, 2004 2:36 PM
> > To: discussion at nsrca.org
> > Subject: Re: Dented pipe
> >
> >
> > Depends where they are.  If not too far in from the charge end, a 
> > mandrel 8-18" OAL from 3/8" steel round with about a 15 degree kink 
> > in it 2" from the(to be) rounded end or so clamped in a vise works 
> > reasonably well for wheedling them out--kind of like the paintless 
> > dent removal guys use.
> There
> > are also sheet metal suckers--but I'm not that familiar with them. 
> > Or
> turn
> > the dent toward the fuse--dents do not affect performance 
> > detectably.
> >
> > RS
> >
> > ----- Original Message -----
> > From: "Fletcher, Richard" <Richard.Fletcher at gs.com>
> > To: <discussion at nsrca.org>
> > Sent: Wednesday, August 18, 2004 12:53 PM
> > Subject: Dented pipe
> >
> >
> > > I just received my new OS 160 pipe and the gorillas at UPS were 
> > > true to
> > form
> > > and stomped on it and it now has a couple of dents. Does anyone 
> > > know how
> > to
> > > remove them?
> > >
> > >
> > >
> > > Thanks, Rich
> > >
> > > =====================================
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