The built-in high precision Hall sensor combined with the high precision and balanced rotor guarantee outstanding linearity of the motor

they include a plunger to install and remove metal pivot balls from the rod ends

Carpet Foam and Rubber Tire:

the Roto Rocket also includes a parachute system in addition to the helicopter fins

Savox - High Torque Coreless Standard Digital Servo, 0.15sec / 347.2oz @ 6V HPI160202 The built-in high precision Hall"Plus" series servos feature Soft Start and Sanwa SSR compatibility. Features: Metal gear train ensures durability and longevity. Great replacement for RTR crawler, truck and buggy servos. Specifications: Torque @ 4. 8v 20. 0kg 277. 7oz in Torque @ 6v 25. 0kg 347. 2oz in Speed @ 4. 8v 0. 18 sec 60 deg Speed @ 6v 0. 15 sec 60 deg Dimensions L x W x H (mm): 40. 7 x 20 x 41 Weight: 69g