Orbital 9843 User Manual

Hingelock

Hingelock

TEE Deployer

TEE Deployer

Model 9843

Model 9843

Introduction

Hingelock deployer Model 9843 was originally
developed for the International Solar Terrestrial Physics
(ISTP) program WIND satellite. Two such mechanisms,
located at 180° apart, are used to form a dipole
antenna along the Z-axis as part of a 3-axis WAVES
experiment. This motorized mechanism is capable of
extending and retracting a 1.12 inch (2.86 cm)
diameter Tubular Extendible Element (TEE). The deployer
features electrical stops at both full-extension and

Typical Technical Specifications:

Antenna Element

Deployed Length: Up to 32.8 ft

(10 meters)
Diameter: 1.12 in (2.86 cm)
Configuration: Hingelock
Material: Beryllium Copper

0.0045 in

(0.1143 mm) thick
Thermal Control Silver &
Coating: Perforations with

Kapton or Teflon

(if required)
Weight
(with coatings): 31.43 gr.ft

(103.12 gr/m)

-retraction. A potentiometer, driven by the moving
element, provides a continuous indication of deployed
length. To ensure minimal distortion due to thermal
gradients in a space environment, thermal control
coatings are applied on both the inside and outside TEE
surfaces. This deployment mechanism is designed to meet
the requirements of document MIL-A-083577A (USAF)
General Specification for Moving Mechanical
Assemblies for Space and Launch Vehicles. This unit can
be deployed or retracted in orbit.

Deployer

Height: 8.23 in (20.9 cm)
Length: 20.06 in

(50.95 cm)
Width: 7.1 in (18.03 cm)
Total Unit Weight: 14.33 lbs (6.5 kg)
Drive Motor: Brushless D.C.
Power: 14 Watts maximum
Voltage: 24-32 Vdc
Deployment Rate: Approximately 1.2

in/sec (3 cm/sec)
Operating
Temperature Range: -10°C to +50°C
Qualification
Temperature Range: -20°C to +65°C
Survival
Temperature Range: -25°C to+65°C

Features

■ Automatic full-extend and -retract motor power cut-off

■ Full-extend and -retract flags

■ Deployed length indicator

■ Minimal magnetic materials

■ Rear-mounting configuration shown

■ Removable RF test enclosure with connector

■ CFE pre-amp attachment

■ Deployed TEE alignment to within 0.1 degree

4.41

2.69

7.10

5.13

3.38

3.00

6.14

4.23

.38
.25

2.06

6.62

1.31

3.03

7.20

2.06

6.25

8.23

2.25

All dimensions are in inches

unless otherwise noted

1.812

Orbital Technical Services Division
5010 Herzel Place
Beltsville, MD 20705
Phone: [phone] FAX: [phone]
www.orbital.com

11.25

15.06

20.06

Hingelock TEE Deployer

Model 9843

7500 Greenway Ctr. Dr.,
Ste. 700 Greenbelt, MD 20770
Phone: [phone] FAX: [phone]