I am continuing my discussion here on this thread.
GWS 40mm/2018 5800
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This 40mm fan/20mm motor combination seems to be at the stores.
http://www.caliberhobby.com/df_edf40.html
This should make a lot fo power available to small airframes, the cost will be a little more weight from a little larger battery but the performance promisses to be well worth the extra weight.
Common 12mm fans wont make the thrust this one is capable of because the 12mm motor is not capable of producing enough torque to work with the higher thrust the fan is capable of.
Numbers from GWS testing:
14.8volts, 26.5amps, 392watts, 413gr, thrust, 14.57oz thrust
I bought one to try in the F86D which lost a bearing a couple weeks back. If it works I will get more, 40mm is the perfect schoolyard/park jet at least for me.
Eric B.