The Piasecki H-21 tandem rotor helicopter was one of the first tandem rotor helicopter, entering service in 1952. The helicopter was used for a series of controlled impact tests, in order to determine ways of improving survival methods in the event of a crash. Well, that last one seems brutal… hardly anybody would survive that […]
Tag Archives: impact
Controlled crash
NASA undertook some flight test with the Boeing 707. Oh yeah! They did a “controlled impact demonstration” hoping the aircraft will not catch fire. Would you like to see what happened?