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Thanks Lynn. Great summary.
Mixture was to close to a Lambda of 1 and needed to be either side.
I’ll aim at a EGT of 1650 max in future.
Steve
On 6 Sep 2019, at 7:40 am, lehanover lehanover@aol.com <flyrotary@lancaironline.net> wrote:
Try adding fuel to lower EGT. Tops at 1650 degrees would be nice. Once in cruise lean past best power to lower EGT. Leave the throttle wide open. 160 to 180 best coolant. 150 to 160 best oil.
62 degrees OAT means big problems on a warm day. .
Lynn E. Hanover
A successful 32 minute Flight #3. I was very pleased.
Main change this flight was winding in some prop pitch and extending the envelope to 140 KIAS.
Configuration of flight was:
OAT was a low 62F
Coolant Inlet - 21in2
Oil Inlet - 8in2
Total Outlet - 80in2
Coolant peeked at 226F
Oil peeked at 218F
EGT peeked at 1724F
Fuel Flow peaked at 18.7 GPH (Flowscan - not sure how accurate from the provided data)
We are still keeping immediately above the airfield
Reflections:
Idle RPM to low
Temps are to high on climb out but maybe OK when we get her up to her cruise of 190 KIAS
I will investigate water spray cooling for the initial climb. Does anyone have experience/data?
Here is a graph of the data.
Cheers
Steve Izett
Perth Western Australia
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