The VM Elf Pro El and Spin ultralight power set consists of a pair of 4.2x2.3 VM folding prop blades in a special 25 mm spinner ready mounted onto a tiny SunnySky 110X outrunner motor that fits inside the spinner. To this a Sunrise 11A Siskin speed control running BLHeli32 firmware has been expertly soldered. The battery connector on the ESC is a Mini JST red BEC socket but this can be replaced if necesary.
Suitable for 2S LiPo batteries only with a capacity between 150 mAh and 450 mAh. The speed controller does NOT have a BEC circuit, so the output to the RC is the battery voltage (ie 8.4V). So HV high voltage servos must be used. Also do not plug in a 3S LiPo as you will fry even HV servos and possibly the receiver.
The total weight of this power set is 16.7 g (0.59 oz).
Mounted using 4 pcs M2 screws (supplied) on a 9 mm diameter.
The Sunrise 11A Siskin speed control will overheat if full power is used for more than approx 5 seconds. We recommend that the throttle channel travel is reduced to 60% on the transmitter to limit the current and avoid overheating.
DO NOT CONDUCT STATIC POWER TESTS.
YOU ARE LIKELY TO OVERHEAT THE MOTOR OR ESC
3 SECOND GROUND RUNS MAX.