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Sorry, should have included the
motor mount shots in there too, there are 3 more places where things are
secured. The intercooler mounts there also, as well as to the front of the
redrive, not shown in these shots. This is just a mock-up prior to going
onto the dyno, and we won't have the redrive mounted for those tests, too much
wear and tear.
Lancair
20B N178RG in Progress
----- Original Message -----
Sent: Thursday, December 17, 2009 1:15
PM
Subject: [FlyRotary] Re: Cabin Heat (Was
Oil Cooler)
Greg,
It looks like the
entire weight of your turbo, intercooler, wastegate, and all associated tubing
is being supported by the exhaust flanges attached to the rotary exhaust
ports. If there is no other
support for these items, you should expect the exhaust pipes to break at the
flanges in short order.
Bob
Rogers
N62BT
Mustang II with 13B
Turbo
From: Rotary
motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Greg Ward
Sent: Thursday, December 17, 2009 1:23
PM
To: Rotary motors in
aircraft
Subject: [FlyRotary]
Re: Cabin Heat (Was Oil Cooler)
Basically,
with the heat factor, vibration, and not knowing exactly how long it would
take before 321 breaks down, it's just something else to go
wrong. We are coming straight out of
the turbo to the exterior, not much room to play. So we are looking at
alternatives.
Lancair 20B
N178RG in Progress
----- Original Message -----
Sent:
Thursday, December 17, 2009 5:05 AM
Subject:
[FlyRotary] Re: Cabin Heat (Was Oil
Cooler)
Greg, did this
exhaust guy elaborate on why it might not be a good
idea?
Why can’t we
move the heat muff further from engine to where temps are similar to
Lycoming – use flex-stainless tubing for
ducting?
Jeff
From:
Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Greg Ward
Sent: Wednesday, December 16, 2009 1:32
PM
To: Rotary motors in
aircraft
Subject:
[FlyRotary] Re: Cabin Heat (Was Oil
Cooler)
We've been
looking at the same things with our install. We talked to our exhaust
guy, and he feels that with the exhaust temps that these rotaries have, that
it might not be a good idea, (the muff). Next step was hot water,
plumbing, and a heater core inside some where, which was sort of a negative
idea. We kept all of our cooling
lines exterior, so that a coolant leak wouldn't happen inside at about 10K
feet, and 200+ knots, not a good scenario. J.C. Whitney has a small
electric heater that has some possibilities, so we are looking into that and
some other ideas.
Lancair 20B
N178RG in Progress
----- Original Message -----
Sent:
Tuesday, December 15, 2009 1:41 PM
Subject:
[FlyRotary] Cabin Heat (Was Oil Cooler)
I'm considering going to a heat muff
since there is sooooooo much exhaust heat that's just going to
waste. I was going to incorporate it into the heat shield of my
newest muffler design. Of course, I'll need to add a CO detector in
the cabin for safety.
On Tue, Dec 15, 2009 at 3:24 PM, Jeff Whaley
<jwhaley@datacast.com>
wrote:
Well with 3 coolers already, I
didn’t want to add a heater core and all the plumbing – I may move my
scavenge point from oil cooler to water radiator as it is below the engine
(uphill for warm air) and closer to the firewall (fewer corners to turn).
I picked the oil cooler because at the time my oil temp was higher than
water temp – now it’s the other way around … also the outlet of oil cooler
as installed is less likely to get contaminated with exhaust
fumes.
Jeff
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