- Reliability and digital holding torque
- Composite-metal geartrain
- High-frequency digital amplifier
A favorite of many jet and precision aerobatic fliers, the 3421 has proven to be invaluable for use in high-performance aircraft when space and weight are at a premium, yet the need for precision is high. The 3421’s superb holding power and zero deadband have proven to be vital for controlling some of the world’s most popular performance aircraft.