This builder of the Rutan Boomerang has this number of aircraft on display in the National Air and Space Museum?
Rutan Boomerang The Rutan Model 202 Boomerang is an aircraft designed and built by Burt Rutan . The design was intended to be a multi-engine aircraft that in the event of failure of a single engine would not become dangerously difficult to control due to asymmetric thrust. The result is an asymmetrical aircraft with a very distinct appearance.
OK-GLI The OK-GLI (Russian: Орбитальный корабль для горизонтальных лётных испытаний , "Orbital'nyy korabl' dlya gorizontal'nykh lotnykh ispytaniy ", 'Orbital ship for horizontal flight tests' ), also known as Buran Analog BST-02, was a test vehicle ("Buran aerodynamic analogue") in the Buran programme. It was constructed in 1984, and was used for 25 test flights between 1985 and 1988 before being retired. It is now an exhibit at the Technik Museum Speyer in Germany.