The nitro helicopters are not the only ones to get some new performance upgrades. My TSA 600E Pro, will be getting BK servos all around this weekend. I will be installing BK DS7001HVs on the cyclic and a BK DS7005HV on the tail. I have been happy with the performance of BK servos on the nitros, so I thought it might be best to put them on the electric as well.

If you guys have not tried Bert`s line of servos, you are really missing out. These servos are fast, reliable, and have insane amounts of torque. Plus an all aluminum case. All these features can cost $200 or more per servo in other brands, but you get them for only $100 each with BK. Lots of bang for the buck here. 

Here are the specs for the DS7001HVs:

Operation Voltage: 6-8.4V
Weight: 68g (2.4 oz)
Torque: 21.3 kg-cm (295 oz-in) at 8.4V
Speed: 0.049 sec/60 degrees at 8.4V
Dimensions: 20x40x37 mm
Frequency: 1520us/333hz
Gears: Metal
Motor Type: Coreless

Here are the specs for the DS7005HV:


● Operation Voltage: 6V - 8.4V
● Weight: 50g (1.7 Oz)
● Torque: 8.4 kg/cm (116.7 oz/in) at 6V
● Torque: 9.6 kg/cm (133.3 oz/in) at 7.4V
● Torque: 10.6 kg/cm (147.2 oz/in) at 8.4V
● Speed: 0.035 sec/60 at 6V
● Speed: 0.032 sec/60 at 7.4V
● Speed: 0.03 sec/60 at 8.4V
● Dimensions: 15x36x35.5 mm
● Frequency: 760us/333 hz
● Gear Type: Metal
● Motor Type: Coreless