RocHobby Critical Mass High Speed 1100mm (43") - PNP "Foam" Great for novice and experienced

Great for novice and experienced pilots alike

Fitted with a 2050KV motor that can take up to 6S power

Built with incredibly durable steel gears

Tall foam rubber wheels for optimal handling on paved surfaces and short

Electric retracts and struts included

RocHobby Critical Mass High Speed 1100mm (43") - PNP "Foam" Great for novice and experiencedRocHobby Critical Mass High Speed 4S Receiver Ready ROC012 1 We felt the Critical Mass was deserving of a high speed power plant to give it the performance many are looking for. The Critical Mass was already one of the favorite planes around Motion RC but now it is even better. We added a larger 3648 770Kv motor, 70A ESC, and 9g metal gear servos. In addition the plane now runs on a 4 cell LiPo. The Critical Mass can now reach speeds of 90Mph and has