Orbital Overlap Dual-TEE Model 225 Manuel d'utilisateur télécharger pdf

Overlap

Dual-TEE

Model 225

Overlap

Dual-TEE

Model 225

Introduction

The Dual-TEE unit Model 225 was originally developed for

sounding rocket programs requiring rapid deployment of small

diameter antennas. After many sucessful missions, this unit

was modified for the Hawkeye and AMPE satellite programs.

This compact unit is designed to deploy two (2) individual

70 foot (21mm) long Overlap elements, each measuring

0.25 inch (0.64 cm) diameter. Both elements are

electrically isolated on seperate storage reels within the

unit and driven simultaneously via one common drive

motor. This unit can deploy and retract in orbit.

The deployer features electrical stops at full-extention and

-retraction. A potentiometer provides a continous

indication of deployed length. A serperate electrically

isolated conector is provided for each antennna element.

Typical Technical Specifications:

Antenna Element

Deployed Length: Up to 140 ft

(42 meters)

tip-to-tip

Diameter: 0.25 in (0.64 cm)

Configuration: Overlap

Material: Beryllium Copper,

0.0015 in thick

(0.0381 mm) thick

Thermal Control Silver Plate with

Coating: Kapton

(if required)

Weight: 8 gr/m

Deployer

Height: 2.27 in (5.8 cm)

Length: 5.58 in (14.2 cm)

Width: 5.8 in (14.7 cm)

Total Unit Weight: 3.5 lbs. (1.6 kg)

Drive: AC Motor

Inverter Power: 265 milliamps

maximum at 28

volts

Deployment Rate: Approximately

10.0 in/sec (25.4

(cm/sec)

Operating

Temp Range: -20C to +40C

This deployment mechanism is designed to meet the

requirements of MIL-A-083577B (USAF), General

Specification for Mechanical Assemblies or Space and

Launch Vehicles. This unit can be deployed or retracted

in orbit.

A larger Dual-TEE mechanism desing was developed for

the Radio Astronomy Explorer (RAE) satellites. This first

succesfuul Dual-TEE application was designed to deploy

a 192 meter long (tip-to-tip) libration boom, 1.47 cm

diameter with an Edgelock configuration. Unit weight is

8.4 kilograms. Dimensions are 34.1 cm long by 19.7

cm deep by 25.6 cm high. Deployment rate is

approximatel 6.0 cm/sec.

1 2

Introduction 1
Features 2

Résumé du contenu

Page 1 - Introduction

OverlapDual-TEEModel 225OverlapDual-TEEModel 225IntroductionThe Dual-TEE unit Model 225 was originally developed forsounding rocket programs requiring

Page 2 - Features

Orbital Technical Services Division5010 Herzel PlaceBeltsville, MD 20705Phone: (301) 902-1152 FAX: (301) 931-0396www.orbital.com7500 Greenway Ctr. Dr.

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Orbital Overlap Dual-TEE Model 225 Manuel d'utilisateur

Naviguer en ligne ou télécharger Manuel d'utilisateur pour Équipement Orbital Overlap Dual-TEE Model 225. Orbital Overlap Dual-TEE Model 225 User Manual Manuel d'utilisatio

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