Orbital Hingelock TEE Deployer Model T126 - Manual

Hingelock
TEE Deployer
Model T126 Hingelock
TEE Deployer
Model T126
Introduction
Orbital’s Hingelock deployer model T126 was develpoed
to meet requirements for the Air Force Communications/
Navigation Outage Forecasting System (C/NOFS)
mission. A total of six Orbital Model T126, Deployable
Electric Field Antenna Booms with Spherical Sensors were
developed as a part of the Vector Electric Field Instrument
(VEFI) experiment provided by NASA/GSFC.
Deployer model T126 is a motor driven mechanism
capable of extending and retracting a 1.12 inch
(2.86cm) diameter, 31.2 foot (9.5 meter) long Tubular
Extendable Element (TEE). For C/NOFS an eight
conductor flat cable is deployed inside the TEE to provide
power and signal to a 10cm diameter Sphere Sensor
located at the tip of the boom.
Typical Technical Specifications:
Antenna Element
Deployed Length: Up to 31.2 ft (9.5
meters)
Diameter: 1.25 in (2.86 cm)
Configuration: Hingelock
Material: Beryllium Copper,
0.0045 in thick
(0.1143 mm) thick
Thermal Control Silver and
perforations with
Teflon (if required)
Weight: 31.4 gr/ft
(with coatings): 103.12 gr/m
Deployer
Length: (deployer unit only)
18.94 in (48.1 cm)
Including Sphere and Shadow Equalizer:
28.3 in (71.9 cm)
Width: 7.0 in (17.8 cm)
Height: 8.23 in (20.9 cm)
Total Unit Weight: (14 lbs. 6.3 kg)
Drive: Brushless DC Motor
Inverter Power: 300 milliamps
maximum at 28 volts
Deployment Rate: Approximately 1.0 in/sec
(2.5 (cm/sec)
Operating
Temp Range:
-20C to +60C
The deployer features electrical and mechanical stops at
full-extension and -retraction. A potentiometer, driven by
the moving element, provides a continuous indication of
deployed length. To ensure minimal distortions due to
thermal gradients in a space environment, material
perforations and thermal control coatings are applied on
both the inside and outside TEE surfaces. This unit is driven
by a brushless DC motor and can deploy or retract in orbit.
This deployment mechanism is designed to meet the
requirements of MIL-A-083577B (USAF), General
Specification for Mechanical Assemblies for Space and
Launch Vehicles.