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Hypetrain "Botgrinder" 2306 2450kv
 Full Results  [CLICK HERE]

 

A different spin on the 2306 2450kv from Rotor Riot, offered for testing from a friendly local pilot.

Check out the full list of motors in this series here

Summary

Published: Jun 5, 2018 by quadmcfly

Hypetrain

Tested KV:2550kv
Weight:32.1g
Stator W:23mm
Stator H:6mm
Rotor Riot hasn't been shy about mentioning the OEM partner for the original Hypetrain motors, so it is very interesting to see Hypetrain model coming from a different supplier. This motor is different from the original in quite a few fairly significant ways. It uses thin 4 strand wire windings rather than the thick single strand wire in the original. The design and structure of the bell is also quite different. The motor retains the 16x16 open base, 4mm internal shaft, and the 9x4x4 bearings, which is positive indicator for durability. The most interesting change is probably the use of a Torx drive retention bolt for the shaft. The drive is a large diameter and should significantly reduce the risk of stripping the bolt and make pulling the bell for maintenance significantly easier. This design comes in about 2g heavier than the original Hypetrain Freestyle, weighing in at just over 32g. Some nice cosmetic and functional improvements here.

Results

The most interesting thing in the results here is the Kv. This motor tested significantly higher Kv than stated, coming it closer to 2550kv, which moves it from mid Kv into the high Kv range. While this motor may be targeted towards lower cost than the other Hypetrain motors, it certainly isn't lacking in performance. The higher Kv and design choices such as magnet thickness and air-gap make this motor a real power-house in its size and weight class, producing almost 1400g at just over 30A on light 5" tri-blade props, all the way up to over 1600g on 5" quad- and heavy tri-blade props. You can see the heavy props pushing the torque limits of the 2306 stator by the relatively flat results in the last 4 props on the chart, but still very strong performance from a motor testing well under 2600kv. The motor manages to match the F40 Pro II almost exactly in terms of power, though it falls behind a bit in terms of efficiency. Overall a surprisingly strong update to the Hypetrain line.