AIRCRAFT ELECTRIC MODEL Russian patent published in 2005 - IPC

FIELD: aircraft models, control line models; competitions of model aircraft flying.

SUBSTANCE: proposed model has load-bearing airframe with lifting wing and at least one motor-propeller unit including propeller and electric motor. Wing area is equal to 7.5-11 sq dm and ratio of wing span square to its area is no less than 2.8 and no more than 4.2 of relative units. Ratio of mass of model to wing area is no less than 7 g/sq dm and ratio of product of propeller diameter square by number of motor-propeller units to wing area is no more than 0.4 of relative units. Electrical resistance of electric motor in locked state is no lesser than product of magnitude equal to 0.2 ohm by number of motor-propeller units.

EFFECT: low cost of model.