This a 2207 from a new lightweight line of motors sent over by Multirotorparts for testing.
Check out the full list of motors in this series here
Summary
Published: Oct 25, 2017 by quadmcfly
| Tested KV: | 2480kv |
| Weight: | 29.7g |
| Stator W: | 22mm |
| Stator H: | 7mm |
Multirotorparts has been a name in the hobby for quite some time now, providing one the major retail outlets in the European miniquad market. Given their extenstive history, it is somewhat surprising that this line of motors is their first go at creating a custom OEM motor, but the wait seems to have been well worth it. These motors nail all the go-to features of current vintage motors: machined steel hollow shaft, baseless design, thick single-wire windings, and , tying it all together in an ultra-light weight package that still retains much of its structural strength. The c-clip rather than the screw may be questionable for some, but I understand the choice, both from a weight savings perspective and reducing the risk of stripping the screw or overtightening it and jamming the motor. This 2207 weighs in at under 30g with ~40mm of wire, which makes it one of the lightest 2207s to cross the bench. The only negative I can find with this motor is the use of a 3mm internal shaft 3x8x4 bearings, rather than the beefier 4mm internal shaft and 4x9x4 bearings, but that comes at the tradeoff for weight reduction. Regardless this makes a very interesting and compelling offering from Multirotorparts.
Results
With an ultralight motor it is always a question of how much weight was reduced by components that impact performance vs. components that are purely ancilary. With this motor it is clear the performance was completely retained. The kV tested a tad low at 2480kv, but the performance doesn't seem to suffer for it at all. The motor still almost hits 1400g at only 31A on the HQ v1s 5x4x3 and even manages almost 1300g on the HQ 5x4 dual blade. On the mid-weight 5" props this motor is approaching 1500g of thrust at around 35A, and hits just shy of 1600g at around 40A on the heavy 5" trifecta. Even with the lower kV this puts this motor closer in performance to the 2600kv 2207 motors than the tested kV would suggest. Very strong performance here for the first motor in the Proton-X lineup.
