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1. 08:16 PM - Intercoolers (Scott Derrick)
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--> Engines-List message posted by: Scott Derrick <scott@tnstaafl.net>
I just acquired a barely used TSIO 520 to install in a Velocity. It came
out of a C210.
The intercooler Cessna used will not fit in my cowl so I will need to set
up another one.
I know the engine's air flow is about 410 CFM at 2700 RPM. Now how to
decide what size intercooler to get.
I can get anywhere from 1.5 to 6 inches thick, and many sizes in width and
length.
Is there a general rule of thumb for what is best, thick or thin, I'm
talking about the dimension the ambient air will flow through.
Also there are basically two flight configurations where the intercooler is
really needed. Climb and cruise. I assume you size for climb as this is
the worst case as far as reduced speed and possibly high power output. Of
course high altitude as in 20,000+ also is tough as the air is so thin you
have problems staying cool.
My speed range will be 90-100knt Vx-Vy, 120-140 knots cruise climb, with an
expected 220+ knot cruise.
Scott
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