Jeff,

Temperatures on the long flight were 180 degrees oil and coolant.  I thought that was a little high for an OAT of 68 degrees.

 

Intake is all aluminum (4 runners) going over the top of the engine to a plenum.  I’ll see if I can attach a photo.

 

As far as fuel doing any cooling.  I was actually showing about a bar richer on the fuel ratio gauge, with the 180 degree temps. 

 

Steve 

 

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]On Behalf Of Jeff Whaley
Sent: Monday, December 11, 2006 11:21 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: [FlyRotary]: Great Flight

 

I flew for about 20 minutes, surveying my new flying area, and just enjoying the view.  I then decided to check out the tuning and started lowering the power.  I found several points where the mixture was really lean, and I made adjustments (option 9 only) to get it where it needed to be.  I think that it probably tuned better now, than it ever has been, so I’m not going to mess with it anymore.

 

Temperatures never did get above 160 degrees, which makes me wonder if I had an air bubble in the cooling system that worked out during, or after the long flight 2 weeks ago.  Whatever it is, I like it.  I slowed up to 100 kits approaching the downwind, and made a perfect approach and landing.  After the decent and landing, temperatures were at about 140 degrees, and the engine was running very good.

 

Interesting report Steve

Questions:

What was the temperature during your previous long flight?

What type of intake are you using?

 

Comment:

Possibly some of your liquid-cooling is now from gasoline … sounds like you were too lean before.

Jeff Whaley