Aug 20, 2010
Oct 2, 2012
Jul 27, 2015
|perfect for my game, thanks for offering for free :)|
Aug 27, 2016
The high-wing Demoiselle aircraft had a wingspan of 5.10 m and an overall length of 8 m. Its weight was little more than 110 kg with Santos-Dumont at the controls. The pilot was seated below the fuselage-wing junction, just behind the wheels, and commanded the tail surfaces using a steering wheel. The cables supporting the wing were made from piano wire. Initially, Santos-Dumont employed a liquid-cooled Dutheil & Chalmers engine with 20 hp. Later, the inventor repositioned the engine to a lower location, placing it in front of the pilot. Santos-Dumont also replaced the former 20-hp engine by a 24-hp Antoniette and carried out some wing reinforcements. This version received the designation No. 20. Due to structural problems and continuing lack of power Santos-Dumont introduced additional modifications in Demoiselle’s design: a triangular and shortened fuselage made of bamboo; the engine was moved back to its original position, in front of the wing; and increased wingspan. Thus, the No. 21 was born. The design of No. 22 was basically similar to No. 21. Santos-Dumont tested opposed-cylinder (he patented a solution for cooling this kind of engine) and water-cooled engines, with power settings ranging from 20 to 40 hp, in the two variants. An interesting feature of the water-cooled variant was the liquid-coolant pipeline which followed the wing lower side lofting to improve aerodynamics.
The Demoiselle airplane could be constructed in only fifteen days. Possessing outstanding