Curtiss Model D
| Curtiss Model D | |
|---|---|
 |
|
| A "headed" Curtiss Model D (Curtiss photo 1916) pusher later "headless" models incorporated elevators around the rudder in the tail (like most aircraft since). |
|
| Role | |
| Manufacturer | Curtiss Aeroplane and Motor Company |
| Introduction | 1911 |
| Status | historic |
| Primary user | Exhibition pilots, aeronautical experimenters United States Navy Aeronautical Division, U.S. Signal Corps |
The 1911 Curtiss Model D (or frequently, "Curtiss Pusher") was an early United States pusher aircraft with the engine and propeller behind the pilot's seat. It was among the very first aircraft in the world to be built in any quantity — all of which were produced by Curtis during an era of trial-and-error development and equally important parallel technical development in internal combustion engine technologies.
It was also the aircraft type which made the first takeoff from the deck of a ship (flown by Eugene B. Ely off the deck of the USS Birmingham on November 14, 1910, near Hampton Roads, Virginia) and made the first landing aboard a ship (the USS Pennsylvania) on January 18, 1911, near San Francisco, California.
It was originally fitted with a foreplane for pitch control, but this was dispensed with when it was accidentally discovered to be unnecessary. The new version without the foreplane was known as the Headless Pusher. Like all Curtiss designs, the aircraft used ailerons instead, which first existed on a Curtiss-designed airframe as quadruple "wing-tip" ailerons on the 1908 June Bug to control rolling in flight, thus avoiding use of the Wright brothers' patented wing warping technology.
The Model D was a biplane fitted with a wheeled tricycle undercarriage. The construction was primarily of spruce, with ash used in parts of the engine bearers and undercarriage beams, with doped linen stretched over it. The outrigger beams were made of bamboo. Prevented by patents from using the Wright Brothers' wing warping technique to provide lateral control, and with neither the Wrights nor himself likely to have known about its prior patenting in 1868 England, Curtiss did not use the June Bug's "wing-tip" aileron configuration, but instead used between-the-wing-panels "inter-plane" ailerons, instead, as directly derived from his earlier Curtiss No. 1 and Curtiss No. 2 pushers. In the end, this proved to be a superior solution. Both the interplane and trailing-edge ailerons on these early aircraft did not use a hand or foot-operated mechanism to operate them, but very much like the earlier Santos-Dumont 14-bis, required the pilot to "lean-into" the turn to operate the ailerons — on the Curtiss pushers, a transverse-rocking, metal framework "shoulder cradle", hinged longitudinally on either side of the pilot's seat, achieved the connection between the pilot and aileron control cabling. Almost all Model Ds were constructed with a pusher configuration, with the propeller behind the pilot. Because of this configuration, they were often referred to as the "Curtiss Pusher". Early examples were built in a canard configuration, with elevators mounted on struts at the front of the aircraft in addition to a horizontal stabilizer at the rear. Later, the elevators were incorporated into the tail unit, and the canard surface arrangement dispensed with, resulting in what became called the Curtiss "Headless" Pushers.
...
Wikipedia