Orbital Hingelock TEE Deployer Model 621 - Manual

Hingelock
TEE Deployer
Model 621 Hingelock
TEE Deployer
Model 621
Typical Technical Specifications:
Introduction
Hingelock deployer Model 621 was originally developed
for the San Marco D/L satellite. Two such units, located
180° apart, were deployed to form a
dipole antenna along the Z-axis as part of a 3-axis
Electric Field Experiment. This motorized mechanism is
capable of extending and retracting a 0.5 in (1.27 cm)
diameter Tubular Extendible Element (TEE). The deployer
features electrical and mechanical stops at both full-extension and -retraction. A potentiometer, driven by
the moving element, provides a continuous indication
of deployed length. This deployment mechanism is de-
signed to meet the requirements of document MIL-A-
083577B (USAF) General Specification for Moving
Mechanical Assemblies for Space and Launch Vehicles.
Similar units were used on the Radio Astronomy Explorer
(RAE-B) Satellite.
Antenna Element
Deployed Length: Up to 32.8 ft
(10 meters)
Diameter: 0.5 in (1.27 cm)
Configuration: Hingelock
Material: Beryllium Copper
0.002 in
(0.0508 mm) thick
Thermal Control
Coating:
Silver with Kapton
(if required)
Weight: 6.96 gr/ft
(22.86 gr/m)
Deployer
Height: 10.1 in (25.65 cm)
Length: 5.2 in (13.21 cm)
Width: 3.2 in (8.31 cm)
Total Unit Weight: 2.4 lbs. (1.1 kg)
Drive Motor: Brush Type
Power: 4 Watts maximum
Voltage: 23-33 Vdc
Deployment Rate: Approximately 0.4
in/sec (1.0 cm/sec)
Operating
Temperature Range: -20°C to +40°C