|Click for RUSSIAN language (cyrillic win-1251)|
|SPB (sostavnoy pikiruyuschiy bombardirovschik = the composite dive bomber) of USSR.|
Soviet TB-3 4-engined bomber carried a pair of I-16 fighters (armed with a pair of 250kg bombs each). All 6 engines worked together using the fuel tanks of the TB-3. Tthe TB-3 gives own long-range to the symbiosis, the little I-16 leaves him not far from a target and performs fast and unespected strike. Total weight = 22 t, speed 260kmph.