The Schreder HP-21 was an American high-wing, variable geometry, V tailed, single seat motor glider project that was designed by Richard Schreder. None was ever completed or flown.
The Schreder HP-21 was an American high-wing, variable geometry, V tailed, single seat motor glider project that was designed by Richard Schreder. None was ever completed or flown. (en)
The Schreder HP-21 was an American high-wing, variable geometry, V tailed, single seat motor glider project that was designed by Richard Schreder. None was ever completed or flown. (en)