Orbital Hingelock TEE Deployer Model 621 User Manual

Hingelock tee deployer model 621, Typical technical specifications: introduction

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