Thanks guys!
Bill B
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of Ed Anderson
Sent: Saturday, April 09, 2011
11:28 AM
To: Rotary
motors in aircraft
Subject: [FlyRotary] Principles of
Duct Design [FlyRotary] Re: Tracy's
Cowling/Cooling Mods
Here is an extract from an NACA
study on ducts and the effects of heat exchanger cores in a duct and factors
important to both. I put a few notes on the side in which I attempt to
interpret the significance of some of the findings. But, in my opinion,
this it really summarizes what is important in cooling duct design for
our applications better than anything else I have found.
Sent: Saturday, April
09, 2011 9:33 AM
Subject:
[FlyRotary] Re: Tracy's
Cowling/Cooling Mods
Here is what he said about them..
Cooling is working OK and when I install the bellmouth
inlet rings on the inlets I think it will be in final form. Right
now I have what amounts to 5" pitot tubes sticking out of the cowl for
inlets. Not good at high angle of attack in climb
Bill B
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of Finn Lassen
Sent: Saturday, April 09, 2011
9:25 AM
To: Rotary
motors in aircraft
Subject: [FlyRotary] Re: Tracy's Cowling/Cooling
Mods
He just expanded the diameter by 1/4 to 1/2" if I
remember correctly. They are still round.
Finn
On 4/9/2011 9:14 AM, Bill Bradburry wrote:
Did
anyone happen to get a picture of Tracy’s plane at SNF that
would show what he has done to modify/improve his cooling inlets? I am in
the “design/invent” mode to try and improve my cooling and I would
really appreciate some ideas that work.
Anyone seen it that could describe the
changes? Anything would help! :>)
Bill B