Michael, while a good idea, the only down
side, I see is weight.
Early on in my build of my RV-6A, I
made an “improvement’ here or there – I mean they only added
an couple ounces or half a pound, etc. Well an ounce at a time, I was
horrified to find out at the end, that my plane end up 120 lbs over Van’s
recommended target weight. Now 44 lbs of that were batteries, but even so
weight is the “performance Killer!” .
I initially thought my good friend, Tracy
Crook, was ….well, somewhat fanatical about weight and some of the “extremes”
he went to avoid and ounce of weight – well, no longer.
I have watch the performance of my
aircraft improve as I took off pound after pound. But, trust me it’s
a lot harder to take off (Hummm, applies to weight on all objects apparently
– thinking of my own body {:>) than it is to avoid in the first place.
Sometimes, there are certainly other
considerations (safety for one) that override weight consideration – but,
in my book, that is about the only one (well, perhaps cost {:>))
Ed
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of Michael Silvius
Sent: Monday, July 21, 2008 12:22
PM
To: Rotary
motors in aircraft
Subject: [FlyRotary] Re: exhaust
manifold
No right now I am aiming for a carbureted system. Preferably
gravity fed for absolute simplicity. I really don't think I'd ever want a turbo
and the inherent additional complexity involved. Aiming to keep it real
basic. I have a couple of old NOS dual points distributors. I do have
a set up made up as Tracy's
early 3 Mikunni system but do not rule out a EC2 system down the road. The 155
hp is more than plenty and even perhaps over the top for the Falconar
F12.
Right now I am not even sure that manifold will clear my
engine mount. That again is as Tracy's
early set up. I have a message in to the vendor for some dimensions.
----- Original Message -----
Other than the loss of exhaust
scavenging and the resulting slight
loss of power as Ernest mentioned there should be no
down side and
155 hp should not be a problem with an efficient intake
system ....Are
you going with fuel injection ??............
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