On November 12, 1996, in Wuhetuoma helicopter manufactory exhibited publicly first with " alligator " the card that this kind of terrible reptile names - the archetypal machine of 52. Card - 52 use position of Shuang Xuanyi close coupled type, installation of engine of two eddy axis is in airframe the short ala upper part of two side. Use can close put before at 3 o'clock type landing gear. Airframe can hang all sorts of weapons below the short ala of two side. Diplomatic corps system uses two pairs of dimension, figure identical, but the close coupled type with opposite direction of rotation comes back ala. Every deputy ala coming back all is comprised by leaf of wider composite material award, paddle is Russia HAYH-3 advanced wing section. Card, atttack ground target for round-the-clock, whole climate, hedgehopper and 52 helicopter are designed. The markeddest characteristic is the cockpit that used paratactic two-seater position, and traditional gunship is serial two-seater layout. This machine uses paratactic two-seater layout to be not do sth unconventional or unorthodox, it is a basis of contemporary gunship drive need designs development with the combat mission that loadsIt is the 2A42 of 30 millimeter portable automatic machine to prepare Chinese medicine by roasting it in a pan of one doorway diameter, can take artillery shell 280 hair. The 4 weapons rack below short ala, can hang carry 12 tornado, the supersonic speed that M heads laser control and guide and department of series connection battle is antitank missile, also can install 4 B, 8B20A rocket launchs mew, the C that every rocket mew can take diameter of 20 80 millimeter, rocket of aviation of 8 blame control and guide; Or install B, 13J5 rocket mew, the C that every rocket mew can install diameter of 5 120 millimeter, rocket of 13 blame control and guide. Layout of helicopter of double ala coming back conduces to the overall dimension of contractible helicopter, make airframe structure more compact. Because it does not have scull, this also enhanced the security when the flight that stick the ground. Colour value is handsome, actual strength is powerful.