Flight helmet

[2] During World War I, British Engineers led by Charles Edmon Prince added earphones (now called headphones) and a throat microphone to make a "hands-free" communications systems for Flight Helmets – then called "aircraft telephones".

[3] The Group's first product was a hand held "aircraft telephone" and, over a 3 year-process of experimenting with various voice microphones, found the hands-free throat microphone built inside a flight helmet much more user-friendly in open-cockpit airplanes due to excessive wind noise and vibrations.

[2][5] A detailed description of a typical Type B helmet can be found on the website of the Imperial War Museum (London, England).

There is a rectangular horizontal panel which goes across the forehead and it includes padded leather oval housings at the ears.

The brown leather of the helmet is lined with buff-colored chamois and has a rectangular length of brown-colored material sewn to the inside of the forehead.