45 Degree Set Square

Made:
1939-1945 in United States
maker:
Cardinell Products Inc.
45 Degree Set Square

45 Degree Set Square
Science Museum Group
© The Board of Trustees of the Science Musuem

45 degree set square, used by Flight Lieutenant Edmund Bell, Royal Auxiliary Air Force Navigator.

Edmund Bell was a navigator in the Royal Air Force during the Second World War. Navigators would plot the route the aircraft should take. This 45 degree set square was part of his navigator’s kit. It allowed him to plot 45-degree and 90-degree angles, as well as drawing perpendicular lines.

Details

Category:
Aeronautics
Object Number:
Y1987.250.12.4
Measurements:
overall: 1 mm x 150 mm x 150 mm,
type:
navigational instrument
taxonomy:
  • furnishing and equipment
  • tools & equipment
credit:
Gift of Edmund Bell