Scale Rubber
Rubber scale models replicate full-scale aircraft. Scale documentation is used at contests to check the accuracy and compliance of the model to the full-scale aircraft modeled.
Most rubber scale models are in the 20” to 30” wingspan range. Exceptions are for "Peanut Scale" class models, with a maximum 13” wingspan and "Jumbo Scale" class models, with 36” or greater wingspan. The models are powered with loops of rubber matched to the weight of the model and the diameter and pitch of the propeller. The length of the loops often exceed twice the length of the fuselage of the model. The flying duration of the scale model is greatly increased because of the number of windings that can be made on such a long loop of rubber with multiple strands. A mechanical winder is used and the rubber is stretched up to fives times original length to pack in maximum winds on the motor. In flight, these models look just like the real thing. All that is missing is the noise of the engine in the original airplane. Experts can achieve spectacular flights from obscure designs such as the Wright brothers original and Bleriot’s channel crosser, to one-of-a-kind Depression era homebuilts and modern day experimental aircraft.
Read more about this topic: Free Flight (model Aircraft)
Famous quotes containing the words scale and/or rubber:
“I find it interesting that the meanest life, the poorest existence, is attributed to God’s will, but as human beings become more affluent, as their living standard and style begin to ascend the material scale, God descends the scale of responsibility at a commensurate speed.”
—Maya Angelou (b. 1928)
“The idea that information can be stored in a changing world without an overwhelming depreciation of its value is false. It is scarcely less false than the more plausible claim that after a war we may take our existing weapons, fill their barrels with cylinder oil, and coat their outsides with sprayed rubber film, and let them statically await the next emergency.”
—Norbert Wiener (1894–1964)