General Information

Serial #

101

Part Number

1

Total Parts

3

AKA

N/A

Patents

N/A

General Description

METAL, WITH SOME SYNTHETIC & RUBBER FITTINGS.

Dimensions

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

Length

78.0 cm

Width

55.0 cm

Height

58.5 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Exploration and Survey

Category

Measurement-position

Sub-Category

N/A

Manufacturer

AKA

LITTON

Country

United States of America

State/Province

California

City

Woodland Hills

Context

Country

Canada

State/Province

Unknown

Period

THIS SYSTEM IN USE 1975- C. 1980. THIS TYPE IN USE 1975- EARLY 1980S.

Canada

FIRST INERTIAL SURVEY SYSTEM ACQUIRED BY GEODETIC SURVEY OF CANADA. ALSO KNOWN (IN CANADA) AS THE "ISS" (INERTIAL SURVEY SYSTEM), THIS TYPE OF EQUIPMENT WAS USED FOR SURVEY WORK ON THE PRAIRIES, AND ON THE MASSIVE QUEBEC HYDRO PROJECTS OF LATE 1970S-EARLY 1980S. (REF. 1)

Function

USED TO COMPUTE THE GEODETIC COORDINATES AND ELEVATION OF A GIVEN POINT.

Technical

THIS INTERIAL SURVEY SYSTEM SENSES ITS OWN MOVEMENTS AND USES THESE TO COMPUTE THE GEODETIC COORDINATES AND ELEVATION OF ANY STOPPING POINT, BASED ON THE COORDINATES OF THE STARTING POINT. IMPERFECT KNOWLEDGE OF THE ANAMALOUS GRAVITATIONAL FIELD AFFECTS THE PERFORMANCE AND ACCURACY OF THE ACCELEROMETERS. (REF.1)

Area Notes

Unknown

Details

Markings

Main or master plate marked "LASS II SYSTEM/ PART NO. 786401-2/ PROJ. LASS II SER. NO. 101/ CONTRACT NO. CANADIAN FORCES/ FSN/NSN [blank]/ 06481/ [logo] Litton/ GUIDANCE & CONTROL SYSTEMS/ Woodland Hills, California 91364". NB: each of 5 main components bears mfr's plate with identical markings, save component name, part no. & FSN/NSN no., as well as assembly numbers, connection or port labels, etc. Mfr's plate on IMU is identical to main plate, save "INERTIAL MEASUREMENT UNIT", "PART NO. 864530-5" and "FSN/NSN MSN 01-1141". Mfr's plate on DM/GPIB is identical to main plate, save "DIRECT MEMORY ACCESS", "PART NO. 864560-2", "FSN/NSN [blank] "./ computer component: Mfr's plate is identical to main plate, save "COMPUTER", "PART NO. 864535-5" and "FSN/NSN MSN 01-1130"./ power supply: Mfr's plate is identical to main plate, save "POWER SUPPLY", "PART NO. 864540–3", and "FSN/NSN 01-1133"./ mounting base: No mfr's plate or other markings on this component.

Missing

UNKNOWN. MAJOR COMPONENTS ARE PRESENT, AND APPEAR TO BE COMPLETE.

Finish

OFF-WHITE ENAMEL FINISH ON MOST SURFACES; RED-BROWN, BLACK AND/OR GREY COMPONENTS.

Decoration

N/A