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Old 05-06-2010 | 04:18 PM
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aeajr
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Default RE: New To Electrics

<div class="shape" style="PADDING-BOTTOM: 2.88pt; PADDING-LEFT: 2.88pt; PADDING-RIGHT: 2.88pt; PADDING-TOP: 2.88pt">Actually it is somewhat below my specs.  kV is right but the amp levels are a bit low.  <span lang="en-US">Continous current is 18A  I was targeting 20 - 23.   Max of 22A is usually a 15 second number so you better not leave that throttle open.

It says max power of 360W but I think that is a mistake.   11V X22 Amps ( max) = 242 Watts.  11X18 = 198 watts.   Assuming they are not out and out liers, that has to be a typo.    And a claim of 98% efficency seems VERY optimistic.  Something in the low 80s is more likely.

Note also that props are smaller than what I recommend.  ( 8" x 5"/ 8" x 7"/ 9" x 5")  although 9X5 is close to 9X6.  I modeled a 1200kV motor with a 9X6 at 22 amps, so this one with a 9X5 is probably right at 18 amps.

This one is OK, but the a little on the light side for my tastes.  I think performance would be a bit weak.  I would not choose this one.  
 
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<p class="MsoNormal"><span lang="en-US">
Rotational Speed      1200 (kv) RPM/V</span></p><p class="MsoNormal"><span lang="en-US">Continuous Current  18A</span></p><p class="MsoNormal"><span lang="en-US">Max. Current    22A</span></p><p class="MsoNormal"><span lang="en-US">Input Voltage   6 - 11.1V</span></p><p class="MsoNormal"><span lang="en-US">Max. Efficiency       98%</span></p><p class="MsoNormal"><span lang="en-US">No Load Current      0.8A</span></p><p class="MsoNormal"><span lang="en-US">Internal Resistance         98mΩ</span></p><p class="MsoNormal"><span lang="en-US">Power       360W</span></p><p class="MsoNormal"><span lang="en-US">Motor Weight (Motor only)         60g</span></p><p class="MsoNormal"><span lang="en-US">Motor Dimensions (Diameter x Length)         28mm x 27.3mm</span></p><p class="MsoNormal"><span lang="en-US">Propeller Dimensions 8" x 5"/ 8" x 7"/ 9" x 5"</span></p><p class="MsoNormal"><span lang="en-US">Input Battery Types NiCd/ Nimh/ Li-po Battery</span></p><p class="MsoNormal"><span lang="en-US">Recommend Model Airplane</span></p></div>