Meter, drift

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OBJECT TYPE: N/A
DATE: Unknown
ARTIFACT NUMBER: 2001.0548.001

MANUFACTURER: Eastman Kodak Co.
MODEL: B-5
LOCATION: Rochester, New York, United States of America

More Information

General Information

Serial #: AF-42-25304
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: predom. steel & aluminum; glass lenses; plastic drift indicator & window; foam insulation

Dimensions

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

Length: 31.0 cm
Width: 14.0 cm
Height: 17.5 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Aviation
Category: Navigation instruments & equipment
Sub-Category: N/A

Manufacturer

AKA: Kodak
Country: United States of America
State/Province: New York
City: Rochester

Context

Country: Unknown
State/Province: Unknown
Period: this type used throughout 1930's & WWII (1939-1945)
Canada: Unknown
Function: In wartime, radio silence was essential, use of radar limited and flights had to be made over the sea or over land at night where no topographical reference points were visible. Under these circumstances aerial navigation necessitated updating the course (dead reckoning) with almost constant drift taking. A drift meter is an optical instrument that points at the ground. By looking down at terrain or whitecaps on the water, the navigator could determine the amount of drift relative to the airplane's true heading. With a stopwatch and an accurate knowledge of the aircraft's altitude, ground-speed can be determined. After considering the aircraft's true airspeed, wind direction and wind-speed can then be inferred by vector analysis and corrections made to keep the airplane on its intended course.
Technical: Unknown
Area Notes: Unknown

Details

Markings: mfr. plate reads: "PROPERTY AIR FORCE, U.S. ARMY/DRIFT METER TYPE B-5/SPECIFICATION NO. 27402/CONTRACT NO. W 535 ac - 29315/SERIAL NO. A.F. 42-25304/MFR'S ASS'Y PART NO. U-9258/MADE IN U.S.A. BY/EASTMAN KODAK COMPANY/ROCHESTER, N.Y."; lettering inside small circular ink stamp reads: "AN/Z 223"
Missing: N/A
Finish: predom dark gray; (tarnished silver indicators & lever; clear window
Decoration: none

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

Eastman Kodak Co., Meter, drift, Unknown Date, Artifact no. 2001.0548, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingenium.ca/en/id/2001.0548.001/

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