flyrotary@lancaironline.net Mailing List Archive

Doug, I have always flown with An-16 bungs and 3/4 " ID hose (AN-16 also). Tracy Crook flew with two 5/8" dia hose (parallel). So in my opinion there is no real advantage going with the 1 1/4" hose unless you are going to upgrade the bungs to 1 1/4 as well.

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

From: DLOMHEIM@aol.com

To: Rotary motors in aircraft

Sent: Thursday, September 20, 2007 7:02 PM

Subject: [FlyRotary] Radiator hose size...

I just received my Griffen radiator from Summit and was thinking about what size hose to use with it. Dennis Haverlah welded AN -20 bungs on his Griffen an I blieve is flying with 1 1/4 inch hose. My engine which I bought from Tommy James flew with 3/4 inch hose and has AN-16 NPT bungs on the front housing for input / output hose hook up.

So can I get adequate cooling with he original 3/4 hose set up, or will cooling in theory be improved by going with the bigger hose? 160-180 hp is all I ever will run in this airframe...

Thanks for any input...

Doug Lomheim

9A; 13B FWF

OK City, OK

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