I HAVE ON JUST LIKE ITBetter with aprop however



<div></div><div>Cobbled together 90 mm fan with 250 Watt Turnigy L2210-1650 Bell Style Motor (250w) seeing if I can get decent efficiency from a small fan turning slower.</div><div></div><div>On 14.8 Volts its pushing almost 500 Grams, not so bad thrust mapping is as follows.</div><div></div><div>100 Grams 1.9 A 27.6 Watts</div><div>156 Grams 3.0 A 42.9 Watts</div><div>197 Grams 3.9 A 55.1 Watts</div><div>257 Grams 5.5 A 76.0 Watts</div><div>296 Grams 6.7 A 90.9 Watts</div><div>340 Grams 7.9 A 105.5 Watts</div><div>432 Grams 10.7 A 138.1 Watts</div><div>492 Grams 12.5 A 155.7 Watts</div><div></div><div>The tests were run on two 7.4V 1300mAh Turnigy 20C Lipo's in series, I figure the motor will survive full throttle bursts on 4C and its 10 Amps short of the max, 100 Watts below its spec.</div><div></div><div>Its surprising as the same motor with a 8 X 6 prop pulled 23.3 Amps on a 3C yielding 520 Grams of thrust at 232.3 Watts.

WORKS BETTER WITH A PROP HOWEVER

<div>23.6 Amps</div><div>11020 RPM</div><div>880 Grams Thrust !</div><div>240 Watts</div><div></div><div>That's on a 2200mAh 3C and a Turnigy AE-30 ESC</div>
</div>