From: Rotary motors in
aircraft [mailto:flyrotary@lancaironline.net] On
Behalf Of Ed Anderson
Sent: Saturday, July 29, 2006 4:56
PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Back in
the saddle again!
Jason, if I recall correctly you do have the 2.85 gear
box. You should be seeing 5800-6000 rpm static (perhaps a bit less in
that heat). I however do not recall your prop set up but if it is close
to the 74x88 prop Tracy and I both fly with our 2.85 then it would appear your
are not getting adequate airflow into( or out of) the engine.
----- Original Message -----
Sent: Saturday, July 29,
2006 9:13 AM
Subject: [FlyRotary] Back
in the saddle again!
Update on my airplane, I now have four flights on my engine
after replacing the seals. Last night I was up for an hour. At 5000msl it was
28C temps stabilized at 197(water) and 188 oil. I still need more power. I am
only getting 5000rpm static which makes for very shallow climb outs. In the
air, I'm getting between 5500 and 6000 rpm at about 140mph (no wheel pants or
fairings).
I did an experiment with a 12" fan mounted behind the
radiator. The fan keeps the water temp under 190 on the ground, but caused
about a 10-15 degree increase in the air. So now I'm thinking about mounting a
small radiator with a fan under the engine.
My next project is to rework the intake for more static rpm.
Jason (waiting for winter or at least temps below 90
degrees)