| [Photo-ID: 10361] © Karsten Palt 2014-05-28 |
 | Sperry
Verville-Sperry M-1 Messenger
United States Army Air Service
last surviving M-1 Messenger a converted Sperry Sport Plane |
| NASM Udvar Hazy Center [Chantilly, VA, USA] |
| [Photo-ID: 10362] © Karsten Palt 2014-05-28 |
 | Sperry
Verville-Sperry M-1 Messenger
United States Army Air Service
last surviving M-1 Messenger a converted Sperry Sport Plane |
| NASM Udvar Hazy Center [Chantilly, VA, USA] |
| [Photo-ID: 10305] © Karsten Palt 2014-05-28 |
 | Lockheed Martin
X-35B
United States Air Force (USAF)
Reg.: 301
c/n: PAV-1
prototype |
| NASM Udvar Hazy Center [Chantilly, VA, USA] |
| [Photo-ID: 10306] © Karsten Palt 2014-05-28 |
 | Lockheed Martin
X-35B
United States Air Force (USAF)
Reg.: 301
c/n: PAV-1
prototype |
| NASM Udvar Hazy Center [Chantilly, VA, USA] |
| [Photo-ID: 10286] © Karsten Palt 2014-05-28 |
 | Hiller
XH-44 Hiller-Copter
Reg.: NX30033
|
| NASM Udvar Hazy Center [Chantilly, VA, USA] |
| [Photo-ID: 10291] © Karsten Palt 2014-05-28 |
 | Kellett
XO-60
United States Army Air Forces (USAAF)
Reg.: 42-13610
|
| NASM Udvar Hazy Center [Chantilly, VA, USA] |
| [Photo-ID: 10357] © Karsten Palt 2014-05-28 |
 | Sikorsky
XR-4C [info]
United States Army Air Forces (USAAF)
Reg.: 41-18874
c/n: 1
prototype, first Sikorsky R-4 built |
| NASM Udvar Hazy Center [Chantilly, VA, USA] |
| [Photo-ID: 10220] © Karsten Palt 2014-05-28 |
 | Bell Helicopter
XV-15
NASA
Reg.: N703NA
c/n: 0002
one of two builtexperimental tilt-rotor VTOL aircraft, built in 1977 |
| NASM Udvar Hazy Center [Chantilly, VA, USA] |
| [Photo-ID: 10221] © Karsten Palt 2014-05-28 |
 | Bell Helicopter
XV-15
NASA
Reg.: N703NA
c/n: 0002
one of two builtexperimental tilt-rotor VTOL aircraft, built in 1977 |
| NASM Udvar Hazy Center [Chantilly, VA, USA] |
| [Photo-ID: 10358] © Karsten Palt 2014-05-28 |
 | Sikorsky
YH-19 (S-55) [info]
Reg.: N4782D
c/n: 1
first S-55 built |
| NASM Udvar Hazy Center [Chantilly, VA, USA] |
