Micro servos have become very necessary components of modern electric flight aircraft – the trend to have small servos directly driving control surfaces, or a servo on each aileron in a foamy flying wing, has raised the need for tiny, powerful and low cost servos.
The Hitec HS-81 micro is a popular servo for many applications, with respectable specifications. Compare the specifications below. These servos fit straight in to the servo cavities in the original Multiplex EasyStar and Easy Electric Glider – and they are a close fit to many other ARF electric aircraft, such as the Great Planes Slinger flying wing.
For smaller servos see the KST-DSX08 and KST-DSX06.
The specifications for the HS81 are:
Size: 30 x 29 x 12mm
Weight: 16.6g
Torque: 2.6 kg/cm
Speed: 0.11 seconds to 60 degrees
Price:$32.00
HT-HS82 MG also available at $45.00 with metal gears – same size as HS81
ideal for EasyStar and Easy Electric Glider Pro
