Boeing VC-137C 62-6000 shortly after entering service in 1962.

The immaculate cockpit of Boeing VC-137C 62-6000, which is open to inspection at the museum.

President Franklin D Roosevelt's Douglas VC-54C 42-107451 'Sacred Cow'.

'Sacred Cow' had a lift built into the fuselage to make it accessible by wheelchair.

North American T-39A Sabreliner 62-4478, on show next to the 'Independence'.

Douglas VC-118 46-0505 'Independence' superbly restored by staff at the museum.

Aero Commander U-4B 55-4647, the first presidential fixed-wing aircraft with only two engines.

A Bell VH-13J Sioux 57-2728 in 'flying' pose at Dayton.

A Bell VH-13J Sioux presidential helicopter takes off from the lawns at the White House.

President Eisenhower's magnificent VC-121E 53-7885 'Columbine III'.