Felsenthal Instrument Company (Chicago, Illinois, USA) Aeronautical Navigation Computer 'Supersonic Computer' - 1960-1970 - Felsenthal Instrument 70s

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Francisco Álvarez
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Selected by Francisco Álvarez

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Estimate  € 160 - € 200
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Felsenthal Instrument Company (Chicago, Illinois, USA) produced the Supersonic Computer – Pilot’s Dead Reckoning, model PTC, manufactured in October 1970; the instrument is in good condition with minor signs of aging.

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Description from the seller

"Supersonic Computer – Pilot’s Dead Reckoning" aircraft navigation computer, model PTC, manufactured by E. Felsenthal Instrument Co. in October 1970.

This instrument is an advanced circular slide rule, used by military pilots and navigators during the supersonic age to calculate:
• true airspeed (TAS)
• Mach
• altitude and offsets
• fuel consumption
• wind, drift and cruising angles
• course corrections
• time, distance and high-speed navigation

Includes:
• Original PTC aircraft computer in excellent condition
• Protective bag for the season
• Complete instruction manual (1970) with diagrams and all original tables

The set is complete and is an excellent example of the instruments used before onboard electronic calculators.

• Very good overall condition
• Clean and fully legible signs and scales
• Bag with normal signs of use.
• Complete manual, no loose pages

• Bag: approx. 16 × 12 cm
• Computer: approx. 11.5 cm in diameter

"Supersonic Computer – Pilot’s Dead Reckoning" aircraft navigation computer, model PTC, manufactured by E. Felsenthal Instrument Co. in October 1970.

This instrument is an advanced circular slide rule, used by military pilots and navigators during the supersonic age to calculate:
• true airspeed (TAS)
• Mach
• altitude and offsets
• fuel consumption
• wind, drift and cruising angles
• course corrections
• time, distance and high-speed navigation

Includes:
• Original PTC aircraft computer in excellent condition
• Protective bag for the season
• Complete instruction manual (1970) with diagrams and all original tables

The set is complete and is an excellent example of the instruments used before onboard electronic calculators.

• Very good overall condition
• Clean and fully legible signs and scales
• Bag with normal signs of use.
• Complete manual, no loose pages

• Bag: approx. 16 × 12 cm
• Computer: approx. 11.5 cm in diameter

Details

Title additional information
Felsenthal Instrument 70s
Material
Plastic
Type
Aeronautical Navigation Computer 'Supersonic Computer'
Manufacturer/ Brand
Felsenthal Instrument Company (Chicago, Illinois, USA)
Country of origin
United States
Period
1960-1970
Height
16 cm
Width
12 cm
Depth
0 cm
Condition
Good condition - used with small signs of ageing
PortugalVerified
238
Objects sold
94.2%
Private

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