Calculator, course & speed
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1999.0444.001
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- OBJECT TYPE
- multi-purpose/pocket/dial
- DATE
- 1947
- ARTIFACT NUMBER
- 1999.0444.001
- MANUFACTURER
- Perrygraf Corp.
- MODEL
- Esso Imperial Oil Ltd. True Course calculator
- LOCATION
- Maywood, Illinois, United States of America
More Information
General Information
- Serial #
- N/A
- Part Number
- 1
- Total Parts
- 1
- AKA
- N/A
- Patents
- N/A
- General Description
- Round off-white heavy paper dial revolves around silver metal centre; black, red and blue text and graphics.
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- N/A
- Width
- N/A
- Height
- N/A
- Thickness
- N/A
- Weight
- N/A
- Diameter
- 11.5 cm
- Volume
- N/A
Lexicon
- Group
- Aviation
- Category
- Navigation instruments & equipment
- Sub-Category
- N/A
Manufacturer
- AKA
- Perrygraf
- Country
- United States of America
- State/Province
- Illinois
- City
- Maywood
Context
- Country
- North America
- State/Province
- Unknown
- Period
- Unknown
- Canada
-
Unknown - Function
-
Used to determine course, distance, air and ground speed, and pressure altitude. - Technical
-
Unknown - Area Notes
-
Unknown
Details
- Markings
- Markings on calculator include: "[logo] Esso/ IMPERIAL OIL LIMITED" AND "Copyright 1947, Perrygraf Corp., Maywood, Ill./ Printed in U.S.A.". Also printed on instrument are instructions for calculating true course, drift angle, ground speed, pressure altitude (in feet), air speed correction, distance, fuel consumption (total and per hour) and speed.
- Missing
- Appears complete.
- Finish
- Round off-white heavy paper dial revolves around silver metal centre; black, red and blue text and graphics.
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Perrygraf Corp., Calculator, course & speed, after 1947, Artifact no. 1999.0444, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingenium.ca/en/id/1999.0444.001/
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