Curtiss, G. (English spelling) CurtissG

...To prevent the aircraft from tipping over on the water, many of them have auxiliary floats (small boat-shaped floats) near the wingtips. The first flying boat was built in 1912 by American Glenn Curtiss (1873-1930), and was widely used by navies and civilians in various countries for maritime patrols and maritime air transport from World War I to World War II. This was because, at the time, there were no airfields with long runways like today, and flying boats had the advantage of being able to take off heavy aircraft carrying cargo and the large amounts of fuel needed for long-distance flights, as there were many water surfaces over which they could run for a long distance, and because they offered peace of mind in the event of an emergency landing due to engine failure during flight. ...

*Some of the terminology that mentions "Curtiss, G." is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…また水上で横に倒れるのを防ぐため，翼端近くに補助フロート(小型の舟形のうき)をつけたものが多い。　飛行艇は1912年アメリカのカーティスGlenn Curtiss(1873‐1930)によって初めて作られ，第1次世界大戦から第2次大戦にかけては，各国の海軍や民間で，海上哨戒や海上航空輸送に盛んに使われた。これは当時は今のような長い滑走路をもつ飛行場がなかったため，積荷と長距離飛行に必要な多量の燃料を積んだ重い機体を出発させるには，長い滑走のできる水面が各地に得られる飛行艇が有利であったことと，飛行中にエンジン故障などで不時着する場合の安心感などが理由であった。…

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