Calculator, air navigation
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1996.0734.001
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- OBJECT TYPE
- dead reckoning
- DATE
- Unknown
- ARTIFACT NUMBER
- 1996.0734.001
- MANUFACTURER
- Felsenthal Instruments Co.
- MODEL
- MB-4A
- LOCATION
- United States of America
More Information
General Information
- Serial #
- N/A
- Part Number
- 1
- Total Parts
- 2
- AKA
- N/A
- Patents
- N/A
- General Description
- possibly aluminum; steel hub; plastic
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 28.5 cm
- Width
- 12.6 cm
- Height
- N/A
- Thickness
- 1.0 cm
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Aviation
- Category
- Navigation instruments & equipment
- Sub-Category
- N/A
Manufacturer
- AKA
- Felsenthal
- Country
- United States of America
- State/Province
- Unknown
- City
- Unknown
Context
- Country
- Unknown
- State/Province
- Unknown
- Period
- unknown; possibly WWII (1939-1945) or post WWII
- Canada
-
Unknown - Function
-
aircraft navigation: dead reckoning is a way of navigating when there are few or no visible landmarks. A pilot uses dead reckoning when flying over large bodies of water, forests, deserts, or heavy cloud layers. Besides an aeronautical chart, a pilot needs an accurate clock and compass and a small computer for figuring complicated mathematical problems. Working with the chart, the pilot plots (plans) a route in advance. The pilot also figures how long it should take to reach the destination while flying at a constant speed. With the help of the computer, the pilot adjusts the course to allow for the effect of the wind. - Technical
-
Unknown - Area Notes
-
Unknown
Details
- Markings
- lettering includes: "COMPUTER, AIR NAVIGATION, DEAD RECKONING/TYPE MB-4A/SPECIFICATION MIL-C-5414E/CONTRACT NO. F34601-71-D-2696/FSN 6605-086-6693/U.S. PROPERTY/MFR'S PART NO. FAA-46D/FELSENTHAL INSTRUMENTS CO."
- Missing
- N/A
- Finish
- grey with black detail; silver & black connectors
- Decoration
- none
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Felsenthal Instruments Co., Calculator, air navigation, Unknown Date, Artifact no. 1996.0734, Ingenium – Canada’s Museums of Science and Innovation, http://collections.ingeniumcanada.org/en/id/1996.0734.001/
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