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The space derby was a racing event for Cub Scouts in the Boy Scouts of America that is similar to the pinewood derby car race. [1] Cub Scouts (the young-age division of the Boy Scouts) race miniature balsa wood gliders that are propelled by a rubber band and propeller. During the 1960s, this was also known as the "rocket derby".
Non-powered airplane gliders (made of balsa wood, foam, paper, or plastic, and hand-thrown, slingshot driven, or wind-up rubber band propeller driven) Shuriken; Throwing stick. Boomerang; Valari; Punching bag and dummy Roly-poly toy; Mook jong; Speed bag; Puppet. Hand puppet. Bunraku; Finger puppet; Glove puppet; Human-arm puppet; Rod puppet ...
The Helicron is an open-wheel car that used a propeller as its drive. The Helicron was abandoned in the late 1930s, but was restored after its barn find in 2000. [1] In the same year, the car was permitted by the French government to drive on the French roads. [2] The car currently resides in the Lane Motor Museum and is on display, as a ...
1951: Magic 8-Ball. This toy is a fortune teller's dream come true! The Magic 8-ball was developed in 1950 and manufactured by Mattel. It's still one of the more accurate ways to find out if your ...
The full-sized craft, dubbed the Rubber Bandit, was of conventional configuration. It was a high-wing monoplane , fitted with a tractor propeller. The craft's primary structure was made of carbon-fiber and Kevlar tubing, with the wings and tail surfaces being built from carbon-fiber ribs, and covered in blue Mylar film. [ 3 ]
Model aircraft propellers are usually specified as diameter × pitch, in inches. For example, a 5 x 3 propeller has a diameter of 5 inches (130 mm), and a pitch of 3 inches (76 mm). The pitch is the distance that the propeller would advance if turned through one revolution in a solid medium. Two and three bladed propellers are the most common.
A rubber band ball is a sphere of rubber bands made by using a knotted single band as a starting point and then wrapping rubber bands around the center until the desired size is achieved. The ball is usually made from 100% rubber bands, but some instructions call for using a marble , [ 16 ] a crumpled piece of paper , or a ping-pong ball [ 17 ...
1921: Leyat propeller car, 4 wheels, ABC engine, 10 sedan cars, 3 sport cabriolet cars; 1925: Rail/road draisine, intended for the director of mines in the Congo, 1 copy; 1927: Record model, 3 wheels, ABC engine, 1 copy. On September 7, 1927, it reached a speed of 170 km/h on the Montlhéry race track.