Historical information
This type of instrument typically used by pilots and navigators for quick calculations of Air Speed and Wind Drift.
Physical description
hand operated navigation computer. Rotating scale on the front panel and a scroll type scale on the inner panel with a winder knob on the right side. Front panel is hinged at the top and bottom has two curved thigh pads.
Inscriptions & markings
Indent No. G6B/145 RAAF
Serial No. WG/2967*
I.C.A.N. in center of front dial
COMPUTER NAVIGATIONAL Ml. III D.