air, airport, am-42, anti-tank gun, apc, art, attack, au val, background, basic, biplane, book, btr- 60p, cartridges, clouds, coin, construction, cool, d- 6sh, doctrine., double, dry ., engine, experienced, fighter, forest, highway, iron, kopeck, lenin, letters, machine, men, modification, numbers, one, picture, piston, plane, pt-acs, quiet, rating, replacement stores, retractable, russia, self-propelled artillery installation, skiing, sky, snow, soviet, soviet union, special, sports training, star, su- 6, su-100, swimming, t- 34-76, tails, tankk, tekstuka, the field, trainer, transport, war, weapon, winter, ww2, yak -6m, yak 52, yak- 11, yak- 52, year, zis -3