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Hi Dave,
I was just responding to Doug on whether I thought the
H2000 aluminum brazing rod (pretty amazing stuff) would work to braze the PP
tube to the outer aluminum surface of a rotor housing. I think it would-
provide you are able heat up the housing sufficiently.
While I find PP very intriguing, I realize that
since I don't fly to the power capability of my stock 13B, there would not be
much point on investing the time and money for a PP. Yes, it could be nice
on take off, but then I throttle back to my normal 7.5-8 gph economy
cruise. So it just doesn't seem to make it worth the effort - for me and
my way of flying.
However, for those who want high speed cruise it sounds
like a good way to go. The problem is other than Richard Sohn and
his PP single rotor, I don't know of anyone who has actually done it, much less
flying with one. The exception is the $$ PowerSport engine - nice PP, nice
power - but expensive.
Ed
----- Original Message -----
Sent: Friday, June 29, 2007 10:24
PM
Subject: [FlyRotary] Re: PP
Construction..
On 30, Jun , at 9:08 AM, Ed Anderson wrote:
Doug, I have not tried that particular brazing job, but I think
it would be much better than just about any other method so far
mentioned. However, that rotor housing is a large mass of
aluminum to get up to temperature brazing temperature, so it would probably
take a high BTU torch and perhaps a larger propane tank (like for the BBQ
grill) rather than the smaller bottles. I would certainly try it
on a junk housing first. But, seeing what they did in the H2000 video
with that stuff, I would say it's certainly worth a try.
Ed
Hi
Ed and Doug,
I have been following the posts on al brazing, but I am not
sure I have this right.
Are you suggesting that a SS Pport tube could be
TIG welded to the steel liner inside the rotor housing and brazed to the cast
aluminum housing on the outside?
This sounds like the ultimate solution
BR, Dave McC
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