Hydroaeroplane
a type of airplane so constructed that it may start from and alight upon water. There are two types of hydroaeroplanes, those in which pontoons are used for the landing gear, and those which have a boatlike understructure. The hydroaeroplane is usually a large, heavily constructed plane, capable of carrying heavy loads, HYDROBROMIC ACID and making long flights, and even able to withstand a comparatively heavy sea when afloat upon the surface of the water. Planes of this type were used during the war for coast patrol work, submarine hunting, and for bombing flights, HYDROCARBON 126 feet. The wings are 12 feet broad, and the space between the wings is 12 feet. The planes themselves weigh about 13,000 pounds, and have in trial flights carried as many as fifty men.
See AERONAUTICS.
TOP ELEVATION OF THE HYDROAEROPLANE NC-4 4 A SIDE VIEW OF THE NC-4 A FRONT VIEW OF THE NC-4 but as a battle plane they can usually be outmaneuvered by the faster and lighter land planes. Glenn Curtiss was one of the pioneers in the development of this type of air craft, and it was in a hydroaeroplane built by his company that the first successful transatlantic flight was made. These aeroplanes, the Navy Curtiss (NC boats), are of the most advanced construction and design.
The N. C. boats are fitted with three Liberty motors developing about 1,200 horse power, anl have a wing spread of