Got the Velocity 20B back in the air on Monday for two flights of about 30
minutes each.  >

Congratulations Al.

Just one thing, are they coil packs I see on top of the engine?
If so please read Tracy Crooks email re operating temperature.  We don't
want another in flight engine failure, it rather spoils one's day.

Ian Beadle

Very good point Ian.
You are absolutely right. Here is a minor point on this subject.
I think Al is running a 2.17:1 PSRU so his RPM's may be less
than yours, hence the pulse rate will be lower. However I can't
say if it is low enough to keep the coils alive. We still need
to set up a pulse generator and measure the heat increase
on the coil surface as a function of pulse rate.

In the mean time and before he flies it again Al should built
a box around the coils and feed in some cold air.

Paul Lamar

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