We doubled the pressure differential and hence the flow through
the rad by adding this cowl flap. The data report will
be along shortly. Coolant temp dropped 20 to 30 degrees
but it was a cooler day. For that reason the jury is still
out on whether the cooling is adequate yet.


The problem here is it is tough to install
adjustable cowl flaps as the bottom of the Pulsar cowl
opening is a compound curve. That means we need segmented
flapettes :) And a complicated control system in the bargain.


Paul Lamar

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