Mailing List flyrotary@lancaironline.net Message #36633
From: Ed Anderson <eanderson@carolina.rr.com>
Subject: Re: [FlyRotary] Re: Cooling Effectiveness
Date: Sun, 29 Apr 2007 20:19:58 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Buly, I agree,  for your situation, the misting may be just the ticket.  I fortunately do not have any overheating problems at idle or taxi speeds even on a hot day, but once the power comes up for take off the temperature increases quickly.

Fortunately, it seems that the rotary can withstand temperature excess at least for a short period without ill effect.  I have had both my oil as high as 210F and coolant as high as 240F back before I got my cooling more optimized.

Be interested in the effect of your misting system on your temperatures.

Ed

Ed, My takeoff temps are like yours. If I'm lucky to get on the  runway without waiting and start the roll with 180-190F I'm happy  camper. But if I have to wait behind few planes, I have to takeoff  with 200-210F and very soon at 1000 feet start pulling the power back  at 220F. I'm installing misting system like Tracy. Today bought the  pump, but have not installed it yet.
In my short hours in cruise I see 160F water and 137-140F oil temps.  My goal is to do something for the ground an takeoff cooling.
Buly
CZ MK-IV 13B Cosmo NA

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