Aircraft Navigation Computer
YEAR: 1978
ITEM: Portable Computer
COMPANY: Heathkit
COUNTRY: USA
IN OUR COLLECTION: Yes
The Heathkit Model OC-1401 is a compact handheld electronic digital computer. It was designed for aircraft pilots and provides basic math, special navigation, flight management and scientific functions. This computer has three custom-designed, microprocessor integrated circuits.
Computer entries are made on a 36-key keyboard and the entries and answers are displayed on a 14-digit, 7-segmant display. The computer comes with a "Standby" mode that allows you to turn the display off after you make entries to conserve battery power. The Aircraft Navigation Computer comes with its own rechargeable batteries that also automatically displayed a "low-battery indicator"
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Documents
Documents for this item have not yet been scanned or not yet posted. There are a lot of pages...contact us if you have an immediate need. (Although there are not a lot of "immediate needs" for a 70+ year old computer!)
OUR DEFINITIONS OF RARITY
One of a Kind: Only known existing item.
Exceedingly Rare: Only 2 to 10 known to exist.
Very Rare: Only 11 to 25 are known to exist.
Rare: Only 26 to 50 are known to exist.
Difficult: Difficult to find.
Available:Can be commonly be purchased.
Unknown: We cannot make a determination.
(For comparison: Many people consider the Apple-1 computer to be rare. As of 2025 there are 92 confirmed and probable Apple-1 computers.)
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