non-fictionOverview of aircraft instruments & accessories. No publication date stated, but looks to be around late 1930s/early 1940sparachutes, instruments & electrical equipment, blind flying panels, radio navigation, flying clothing, engine instruments, navigational equipment, electricity in the cockpit, the altimeter, ice formation, airport aids to flight, catapults & assisted take offs, vertical speed indicator, instrument flying, airspeed indicators, air traffic rules, radio beams, air beacons, transatlantic flying, flares & pyrotechnics, cabin equipment, inspection & testing for wireless operators, electrical interference, sextants, hydraulic controls, bad weather flying, bonding & screening, aircraft as disease carriers