Antenna

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Ingenium, 1991.0476.001
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OBJECT TYPE: STEM VARIATION/JACK-IN-THE-BOX
DATE: 1965
ARTIFACT NUMBER: 1991.0476.001

MANUFACTURER: de Havilland
MODEL: Unknown
LOCATION: Ontario, Canada

More Information

General Information

Serial #: N/A
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: NON-FERROUS METAL CASING/ METAL ALLOY (BERYLLIUM-COPPER?) ANTENNA/ SYNTHETIC OR RUBBER LIG STRAP

Dimensions

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

Length: 3.5 cm
Width: 2.6 cm
Height: 3.0 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Space Technology
Category: Miscellaneous
Sub-Category: N/A

Manufacturer

AKA: deHavilland
Country: Canada
State/Province: Ontario
City: Unknown

Context

Country: Canada
State/Province: Unknown
Period: 1960'S
Canada: INVENTED AT NRC FOR MILITARY PURPOSES & DEVELOPED FOR SPACE APPLICATIONS BY THE SPECIAL PRODUCTS & APPLIED RESEARCH DIV. (LATER SPAR AEROSPACE) OF DE HAVILLAND, STEM ANTENNAS WERE FIRST USED IN CANADA ON THE ALOUETTE-ISIS SATELLITES, AS WELL AS MANY U.S. CRAFT. STEM TECHNOLOGYHELPED SPAR TO BECOME ONE OF CANADA'S MAJOR MFR'S OF SPACE TECHNOLOGY.
Function: AN EARLY VERSION OF A SELF-EXTENDING ANTENNA USED ON ROCKETS OR SATELLITES
Technical: A VERY EARLY SAMPLE OF THE JACK-IN-THE-BOX TYPE STEM ANTENNA, A VARIATION OF THE STEM TECHNOLOGY IN WHICH A THIN RIBBON OF PRE-STRESSED METAL WAS TWISTED & ROLLED INTO A CASING WITH A LID. IN ORBIT IT WAS RELEASED TO FORM A LONG TUBE. THIS ENABLED THE VERY LONG ANTENNAS REQUIRED BY SPACECRAFT TO BE MADE.
Area Notes: Unknown

Details

Markings: DECAL WITH RED & BLUE DE HAVILLAND LOGO, BLUE LETTERING READING `STEM' & BLACK `STORABLE TUBULAR EXTEN___' WITH REMAINDER OBLITERATED
Missing: N/A
Finish: GREY PAINTED CASING/ PLATED LID & LEVER/ RED-BROWN STRAP
Decoration: N/A

CITE THIS OBJECT

If you choose to share our information about this collection object, please cite:

de Havilland, Antenna, circa 1965, Artifact no. 1991.0476, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1991.0476.001/

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