General Information

Serial #

4

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

METAL & SYNTHETIC

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length

19.5 cm

Width

12.5 cm

Height

13.2 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Space Technology

Category

Military

Sub-Category

N/A

Manufacturer

AKA

deHavilland

Country

Canada

State/Province

Unknown

City

Unknown

Context

Country

Unknown

State/Province

Unknown

Period

Unknown

Canada

INVENTED AT NRC FOR MILITARY AIRCRAFT BEACONS & DEVELOPED FOR SPACE APPLICATIONS BY SPECIAL PRODUCTS & APPLIED RESEARCH DIV. OFDEHAVILLAND, STEM ANTENNAS WERE FIRST USED IN CANADA ON ALOUETTE-ISIS SATELLITES, AS WELL AS MANY U.S. CRAFT. STEMS WERE FLOWN ON U.S. MILITARY SATELLITE LOFTI BEFORE ALOUETTE 1.

Function

DEPLOYABLE ANTENNA USED ON AMERICAN MILITARY SATELLITE.

Technical

STEM ANTENNAS WERE DESIGN INNOVATION THAT ENABLED SATELLITES TO HAVE VERY LONG ANTENNAS REQUIRED FOR THEIR FUNCTIONS INSTEAD OF MUCH SHORTER ANTENNAS PREVIOUSLY AVAILABLE. ANTENNA CONSISTS OF THIN RIBBON OF PRE-STRESSED METAL ROLLED ONTO SPOOL FOR LAUNCH & EXTENDED TO FORM LONG TUBE WHEN SATELLITE IS IN ORBIT.

Area Notes

Unknown

Details

Markings

PLATE READING 'THE DE HAVILLAND AIRCRAFT OF CANADA LTD./ SPECIAL PRODUCTS DIVISION/ TYPE A-31 SERIAL No 004' WITH LOGO/ DECAL READING 'DC MOTOR -PART NO/ 43A572/ VOLTS DC 12/ GLOBE INDUSTRIES, INC./ DAYTON, OHIO/ PATENT PENDING

Missing

N/A

Finish

WHITE, GREEN & BROWN SYNTHETIC WITH MULTICOLOURED PARTS/ METALLICPARTS/ COPPER COLOURED ANTENNA

Decoration

N/A