Краш-тест американского военного вертолета Boeing CH-46

Oct. 1, 2014 -- NASA researchers and others from the military and national and international government agencies spent more than three years preparing for less than 10 seconds. That’s about how long it took for a 45-foot-long former Marine helicopter to fall 30 feet into a bed of dirt during the Transport Rotorcraft Airframe Crash Testbed (TRACT 2) full-scale crash test at NASA Langley’s Landing and Impact Research (LANDIR) facility.