Aircraft Vintage WW1 Airplane Propeller 73.2 Wood Model Assembled. H red tips and has been lightly distressed.
This decorative propeller is a replica of a WWI Biplane vintage propeller. It is sure to become a decorative & conversational addition to your decor whether hanging over the mantel or leaning against the wall in a corner. 73.2'' L x 5.9'' W x 3.5'' H. Material: Solid wood & brass. Includes: Wall mounting bracket (please see below).
Handcrafted individually, colors may vary. Aircraft propellers convert rotary motion from piston engines or turboprops to provide propulsive force.
They may be fixed or variable pitch. Early aircraft propellers were carved by hand from solid or laminated wood with later propellers being constructed from metal. The most modern propeller designs use high-technology composite materials.The twisted airfoil (aerofoil) shape of modern aircraft propellers was pioneered by the Wright brothers. They found that a propeller is essentially the same as a wing and so were able to use data collated from their earlier wind tunnel experiments on wings. They also found that the relative angle of attack from the forward movement of the aircraft was different for all points along the length of the blade, thus it was necessary to introduce a twist along its length. Their original propeller blades are only about 5% less efficient than the modern equivalent, some 100 years later.
The item "Aircraft Vintage WW1 Airplane Propeller 73.2 Wood Model Assembled" is in sale since Thursday, April 9, 2015. This item is in the category "Collectibles\Transportation\Aviation\Military Aircraft\Other Military Aircraft Items". The seller is "atlantisgift" and is located in New York.This item can be shipped to United States.