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Elite series motors from Esprit are the culmination of years spent designing and testing in extreme environments. Motors feature hardened steel shafts, built in fans, and a large radial bearing designed to carry the load placed on the open end of the rotor. Jeti telemetry sensors are also mounted in the motors to measure voltage and temperature. These features, combined with an easy to maintain and repair design, promise years of worry free use.
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Wow
Those some of the lowest kv' motors I've seen. 10s-12s Lipo! Large props. Cool |
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I really doubt the 94% efficiency claim.
Based on the specs, which could be wrong, the 30cc motor reaches peak efficiency of 88% at 27 amps when running on 12s. At 60 amps, the motor is about 84% efficient (I started to do the numbers on paper but instead just pumped the numbers into ecalc). E50 Series - Elite 30cc 200 3D Kv (rpm/V) 200 Max Power (W) 2600W Max Amp (15sec) 65A Max Efficiency 94% Io (No load A) 1.1A Rm (Resistance) 0.084Ohm Shaft Diameter 8mm Motor Diameter 65mm Motor Length 55.8mm Motor Weight 695g w/Mount, Sensors Built in Fan Yes Max Rpm 9,000 Poles 14 Case Outrunner ESC Timing 25 deg ESC Switching Freq. 8kHz I'm sure they are good motors, but very few hobby motors have approached 93% efficiency, let alone 94%. Honestly, it is very hard to achieve 90% efficiency, and when you do it is usually with an inrunner with a gearbox- impracticable for most applications except some gliders and pattern planes. |
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Are Hackers and Scorpion motors in the 90% efficiency?
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Quote:
The Hacker A60M and A60L range spans the 30cc - 50cc Esprit sizes, but the Kv choices available are substantially lower, eg the 910g A60L has 192, 168 and 149 rpm/V options, while the A60M @ 760g has 215, 190 and 170 rpm/V options. I see Esprit also has an Elite Super HD range that appears to compete with the larger sizes Hacker Q series. A wealth of options for big electric systems ![]() |
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That graph is soo small I can't read it.
So what brand motors is efficient? I use$40 COBRA motors (buddyRC) on FPV 20mile runs... i didn't know there are motors that are 90% more efficient |
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/* Oops. Wrong planet. */
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Last edited by Ron van Sommeren; Jan 30, 2019 at 08:46 PM.
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What brand motors are more efficient then COBRA motors?
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