A mini tail rotor servo, the BLS257 has a lightning fast speed of only 0.07sec for 60 degrees, along with a powerful 2.2Kg.cm torque -ideal for electric helicopters....
A mini tail rotor servo, the BLS257 has a lightning fast speed of only 0.07sec for 60 degrees, along with a powerful 2.2Kg.cm torque -ideal for electric helicopters.