F9F Cougar Flight Manual, US Navy, AN 01-85FGD-1, 1954 F6F Hellcat and the azimuth and elevation

and the azimuth and elevation of the searchlight's beam relative to the position of the aircraft would appear on the indicator

ID-236/APA-61 was a component of Radar Bombing Navigational Computer AN/APA-61

It thus serves as the VHF antenna and the forward support for an HF antenna

used in determining proper elevation and deflection (direction) when operating field artillery weapons

F9F Cougar Flight Manual, US Navy, AN 01-85FGD-1, 1954 F6F Hellcat and the azimuth and elevationThis is an original Cold War era US Navy Flight Manual for the aircraft carrier based Grumman Cougar F9F 6 and F9F 6P Jet Fighter. Virtually the same aircraft, the swept winged Cougar replaced the straight winged F9F Panther (pre F9F 6) providing greater airspeed and performance. At over 150 pages, it is all there. The manual is in very good condition despite some discoloration on the cover and some minor deterioration on the upper corner of the last