Historical Context & Origin
Region: United Kingdom
Material: Aluminum, Bakelite, celluloid, fabric straps, paper notebook
Period: World War II era (circa 1939–1945)
Description
This rare RAF navigational computer is a complete flight tool used by Royal Air Force navigators to calculate true course, airspeed, drift, and altitude adjustments. Bearing original Air Ministry markings, the instrument retains its leg straps, pencil, and a flight notebook containing handwritten navigator’s records. Together, these elements provide a compelling glimpse into the operational demands of wartime aviation.
Features
- RAF issue navigational computer with Air Ministry stamp
- Rotating aluminum dial for 360-degree directional adjustments
- Marked “Isothermal Calibration” for precision in varying flight conditions
- Rear panel with paper grid beneath clear celluloid, adjustable via Bakelite knob
- Calibrations for nautical miles, statute miles, altitude (feet), and temperature (Celsius)
- Includes original straps, pencil, and navigator’s notebook with handwritten flight records
Cultural Significance
Navigational computers such as this were essential tools for RAF crews during World War II, enabling precise calculations during active flight. Accurate navigation determined the success of bombing operations, reconnaissance missions, and long-range deployments. The surviving notebook containing handwritten flight entries adds exceptional historical context, preserving firsthand evidence of the navigator’s operational work.
Condition
Excellent preservation with original components intact. The notebook retains legible handwritten entries, enhancing both historical interest and collectible value. Mechanical elements remain clearly defined.
Dimensions (Approximate)
Height: 11.5 in
Width: 7 in
Age (Approximate)
80–86 years old
