15
c)
Slide the cowl back into position with the four pieces of tag board
on the outside of the cowl. Carefully reposition the cowl and tape
it in place with low-tack masking tape. Now drill the four cowl
mounting holes through the cowl.
d)
Remove the tape, cowl, and tag board from the fuselage. Screw
each of the four cowl screws into a hole and then remove the
screws.
e)
Add a drop of thin CA to each of the four cowl mounting screw
holes to harden the holes. Using a 7/64” bit, re-drill the four holes
in the cowl. This will allow the cowl mounting screw to easily pass
through the cowl without cracking the fiberglass.
f)
The cowl can now be permanently mounted to the fuselage.
g)
Mount a suitable propeller (not furnished) and the included
spinner (optional) on your motor. Be sure to balance the propeller
before installation.
❑
33) COOLING IS IMPORTANT!
With a fully-cowled motor, it is very important to make sure your
power system is getting proper cooling. Air flowing into the front
of the cowling must have a place to exit the cowl. In fact it’s best
to have more air exit area than inlet area to create a positive air
flow through the cowling - an actual suction effect - drawing the
heated air out of the cowling so that more cool air can come in.
This positive air flow keeps your motor running cool.
The RASCAL 80 cowling has one large opening in the front to let
air in. It also has a generous sized opening at the bottom rear
edge of the cowling to let the air exit. However if test flights
indicate that your motor, ESC or battery need more cooling, here
are a couple additional cooling options.
Summary of Contents for Rascal 80 eg
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