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Aviation/Navigation
Calculators |
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Navtronic 16.
Developed by Specialized Electronics Corporation (SEC) in
1977, it was an aviation calculator that incorporates 16 LEDs to denote the function
calculated/displayed. A BRT/DIM switch was dimming the
display for nighttime flying. Original price: $230 |
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Navtronic 1701.
Based on the earlier Navtronic 16, it incorporates the same 16 LEDs,
but the LEDs are now protected on the keyboard panel. There
were four versions manufactured each incorporating different
features. |
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Navtronic 1701t.
Based on the Navtronic 1701, it incorporates count down/up
timer with alarm, but no RNAV
capabilities. |
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Navtronic 1701r.
Based on the Navtronic 1701, it incorporates RNAV
capabilities, but no timer. |
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Navtronic 1701tr.
Based on the Navtronic 1701, it incorporates RNAV
capabilities and a count down/up timer with alarm. |
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Navtronic Navigator.
Introduced on June 3, 1983, by Specialized Electronics along
with the Explorer (below), it included basic navigation
functions, such as: True Airspeed, Calibrated Airspeed,
Density Altitude, Time to Climb, Distance to Climb and Rate
of Climb calculation, Ground Speed calculation, Fuel
requirement and Consumption Rate calculation, Weight and
Balance calculations and Estimated Ground Speed and Heading
calculation. |
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Navtronic Explorer.
Introduced on June 3, 1983, by Specialized Electronics, this
was an advanced version of the Navigator (above) adding
Rhumb Line Calculations, Timer and Clock functions and RNAV
calculations. |
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Navtronic Explorer (Version 2).
This later edition was
Introduced in 1987 and, although identical to the original
1983 Explorer model, it is not as solidly built. Also the
original solid keys were replaced with rubber keys in this
version. |
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Commodore N-60.
Introduced in 1976 by Commodore (UK), the N-60, aka
Navigator, has an impressive number of keys: 60! The
provided functions are all the navigation functions expected
to be found in such a calculator. |
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Heathkit OC-1401 (OCW-1401).
A powerful aviation calculator manufactured by Heathkit
Company of Michigan, USA, in 1978. Heathkit offered several
electronic devices and calculators as kits. This particular
one
was made available either as a kit
(OC-1401), or assembled (OCW-1401). |
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Tamaya NC-2.
Manufactured by Tamaya & Company, Ltd. in Japan, known for
its navigation instruments, this is a Digital Navigation
Computer. It was introduced in 1976 and was replaced by the
NC-77 (see below). |
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Tamaya NC-77.
Manufactured by Tamaya & Company, Ltd. in Japan, known for
its navigation instruments, this is a Digital Navigation
Computer. It was introduced in 1978 and was sold until 1991
(a record only beaten by HP with the 12C). |
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Tamaya NC-88.
Another example of a Tamaya Digital Navigation
Computer, released around 1983. This one has an LCD display and a built-in
printer. |
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Tamaya NC-99.
Released in 1994. This Tamaya was basically a Sharp OZ-7200 Electronic
Organizer with the Tamaya Practical Navigator card and the
Tamaya logo. The navigator card actually works on any Sharp
Organizer. |
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Tamaya NC-2000.
A more recent Tamaya Navigation computer and probably the
most expensive one. Includes built-in almanac for all
planets and 63 stars from 1583 to 2100. Discontinued in
2003.Original price: $1,200 |
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Jeppesen Sanderson Avstar.
Developed and manufactured by Texas Instruments with the Jeppesen Sanderson
logo in 1980. It was based on the TI-58 design. |
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Cessna Sky/Comp.
This is practically the same calculator as the Jeppesen
Sanderson Avstar (above), but with the Cessna logo. |
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Jeppesen Sanderson Avstar.
Another version of the Jeppesen Avstar introduced in 1986,
basically with an improved keyboard. This one was based on
the TI-35-II and it was one of the best Jeppesen/Texas
instruments models. |
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Jeppesen Sanderson Prostar.
A later version of the Jeppesen Avstar introduced in 1982.It
was again manufactured by Texas Instruments and based on the
TI-55-II. Due to the keyboard's terrible design, Texas
Instruments cancelled the TI-55-II (and the Prostar with it)
and introduced the TI-55-III and a new Prostar in 1986. |
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Jeppesen Sanderson Techstar.
This is the first Jeppesen calculator designed exclusively
for Jeppesen. All previous calculators were redesigned Texas
Instruments casings with reprogrammed for aviation
calculations. It was introduced in 1992. |
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CX-1 Pathfinder.
Manufactured by ASA, this is a modern navigation calculator. |
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Sharp EL-512/Merlin.
This is a SHARP calculator with a programmable ROM with
Navigation commands, manufactured by Merlin. |
