Thread: Build Log TOPMODEL CZ GRAFAS glider
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Old Feb 02, 2011, 12:54 PM
mikmerl is offline
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Athens, Greece
Joined Apr 2010
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Manu I have ordered a hollow nose spinner which has not yet arrived. I will rely on whatever air enters through there for cooling. I agree with Leadchucker the climb out is very brisk with these motors 15 to 20 seconds and you are at the desired height. I do not believe that there is any significant heat buildup in such a short run.
As for the down and right thrust I rely on the fuselage nose ring and carefully align the firewall/motor so that I have a good close constant gap between the fuselage and the spinner. That way you get whatever the manufacturer has built into the design.
If needed I simply compensate for any climb/tendencies the glider exhibits under power from the transmitter.

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