Challenge
The customer needed a complete azimuth drive assembly to support and actuate a 900 lb radar mounted under an aerostat. The assembly had to transfer several circuits of electrical power and data while maintaining the speed of the radar in the azimuth axis.

Solution
Moog developed an azimuth drive assembly that integrated power and data slip rings, two-channel fiber optic rotary joints, a direct drive motor, a resolver and a servo controller in a specially designed housing with bearings. This assembly was designed to regulate a 900 lbm, 300,000 lb-in² suspended load between rest and 30 RPM.

Challenge
The customer needed two single-axis rotary assemblies to install in an airborne gimbal assembly that could quickly point a sensor at an incoming threat. The assemblies had to be compact, light and capable of meeting harsh environmental conditions.

Solution
Moog provided rotary gimbal assemblies that combined motors, resolvers and slip rings in custom structures with bearings and seals. These solutions are capable of operating in various airborne environments while meeting the requirements of minimal slew time with a combined mass of less than 20 lbs.

Challenge
The customer was in search of a new supplier of highly reliable servo actuators for use on a tactical class UAV. The project required the rapid development of designs with better performance, improved environmental capabilities and better EMI susceptibility than the incumbent source.

Solution
Moog responded with one DSP-based servo control actuator design that moved all flight control surfaces on the UAV despite varying loads. Since the aerodynamic loads were much higher at several flight control surfaces on the vehicle, Moog developed a second stage bolt-on gearbox that doubled the output torque from 50 to 100 in-lbs. This allowed the use of the same basic configuration at multiple positions. Moog also developed a novel position feedback technology for the actuator that led to increased reliability at a lower cost.