flyrotary@lancaironline.net Mailing List Archive

Monty, never measured the drop across my cores, but would reasonably assume they are probably close to what Tracy measure. However, others have reported more modest delta Ts across their cores. I believe either Todd or Perry Casson took such measurements.

Ed A

----- Original Message -----

From: Monty Roberts

To: Rotary motors in aircraft

Sent: Tuesday, December 20, 2005 8:36 PM

Subject: [FlyRotary] Tracy, Ed, delta T

Tracy and Ed,

I was looking at an earlier post where Tracy listed air delta T across his evap cores in cruise as 70-80F. How much increase in DeltaT do you see with altitude? I would assume it would increase since the air is both colder, and thinner. A 10 deg deltaT change makes a substantial difference when sizing an intake.

Monty