| [Photo-ID: 10143]  Karsten Palt 2014-05-28 | 
|  | Douglas DWC World Cruiser
 United States Army Air Corps (USAAC)
 Reg.: 25-1230
 
 Chicago, one of 5 built, first aerial circumnavigation
 | 
| National Air and Space Museum [Washington, DC, USA] | 
| [Photo-ID: 5382]  Karsten Palt 2012-01-11 | 
|  | Consolidated PT-1  [info]
 United States Army Air Corps (USAAC)
 Reg.: 26-233
 
 
 | 
| National Museum of the United States Air Force [Dayton, Ohio / USA (Wright-Patterson AFB), USA] | 
| [Photo-ID: 10307]  Karsten Palt 2014-05-28 | 
|  | Loening OA-1A San Francisco
 United States Army Air Corps (USAAC)
 Reg.: 26-431
 
 
 | 
| NASM Udvar Hazy Center [Chantilly, VA, USA] | 
| [Photo-ID: 10308]  Karsten Palt 2014-05-28 | 
|  | Loening OA-1A San Francisco
 United States Army Air Corps (USAAC)
 Reg.: 26-431
 
 
 | 
| NASM Udvar Hazy Center [Chantilly, VA, USA] | 
| [Photo-ID: 6151]  Karsten Palt 2012-06-14 | 
|  | Consolidated PT-1  [info]
 United States Army Air Corps (USAAC)
 Reg.: 27-150
 
 ex N1926M
 | 
| San Diego Air and Space Museum [San Diego, CA, USA] | 
| [Photo-ID: 6152]  Karsten Palt 2012-06-14 | 
|  | Consolidated PT-1  [info]
 United States Army Air Corps (USAAC)
 Reg.: 27-150
 
 ex N1926M
 | 
| San Diego Air and Space Museum [San Diego, CA, USA] | 
| [Photo-ID: 11278]  Karsten Palt 2015-06-04 | 
|  | Consolidated PT-6A  [info]
 United States Army Air Corps (USAAC)
 Reg.: 30-385
 
 one of only 10 built PT-6A
 | 
| March Field Air Museum [Riverside, CA, USA] | 
| [Photo-ID: 11279]  Karsten Palt 2015-06-04 | 
|  | Consolidated PT-6A  [info]
 United States Army Air Corps (USAAC)
 Reg.: 30-385
 
 one of only 10 built PT-6A
 | 
| March Field Air Museum [Riverside, CA, USA] | 
| [Photo-ID: 5474]  Karsten Palt 2012-01-11 | 
|  | Boeing P-12E  [info]
 United States Army Air Corps (USAAC)
 Reg.: 31-559
 c/n: 1488
 
 
 | 
| National Museum of the United States Air Force [Dayton, Ohio / USA (Wright-Patterson AFB), USA] | 
| [Photo-ID: 5473]  Karsten Palt 2012-01-11 | 
|  | Curtiss P-6E Hawk  [info]
 United States Army Air Corps (USAAC)
 Reg.: 32-261
 
 displayed as 32-240, last surviving P-6E Hawk
 | 
| National Museum of the United States Air Force [Dayton, Ohio / USA (Wright-Patterson AFB), USA] | 
| [Photo-ID: 5444]  Karsten Palt 2012-01-11 | 
|  | Martin B-10  [info]
 United States Army Air Corps (USAAC)
 Reg.: 33-0146 / 146
 
 export version, ex Argentine AF, only surviving B-10
 | 
| National Museum of the United States Air Force [Dayton, Ohio / USA (Wright-Patterson AFB), USA] | 
| [Photo-ID: 5443]  Karsten Palt 2012-01-11 | 
|  | Martin B-10  [info]
 United States Army Air Corps (USAAC)
 Reg.: 33-0146 / 146
 
 export version, ex Argentine AF, only surviving B-10
 | 
| National Museum of the United States Air Force [Dayton, Ohio / USA (Wright-Patterson AFB), USA] | 
| [Photo-ID: 5466]  Karsten Palt 2012-01-11 | 
|  | Douglas O-38F  [info]
 United States Army Air Corps (USAAC)
 Reg.: 33-324
 c/n: 1177
 
 
 | 
| National Museum of the United States Air Force [Dayton, Ohio / USA (Wright-Patterson AFB), USA] | 
| [Photo-ID: 5462]  Karsten Palt 2012-01-11 | 
|  | Northrop A-17A  [info]
 United States Army Air Corps (USAAC)
 Reg.: 36-0207
 c/n: 234
 
 
 | 
| National Museum of the United States Air Force [Dayton, Ohio / USA (Wright-Patterson AFB), USA] | 
| [Photo-ID: 5461]  Karsten Palt 2012-01-11 | 
|  | Northrop A-17A  [info]
 United States Army Air Corps (USAAC)
 Reg.: 36-0207
 c/n: 234
 
 
 | 
| National Museum of the United States Air Force [Dayton, Ohio / USA (Wright-Patterson AFB), USA] | 
| [Photo-ID: 5497]  Karsten Palt 2012-01-11 | 
|  | Seversky P-35  [info]
 United States Army Air Corps (USAAC)
 Reg.: 36-404
 
 
 | 
| National Museum of the United States Air Force [Dayton, Ohio / USA (Wright-Patterson AFB), USA] | 
| [Photo-ID: 13224]  Karsten Palt 2016-10-10 | 
|  | Douglas B-18B Bolo  [info]
 United States Army Air Corps (USAAC)
 Reg.: 37-0029 / BI/24
 c/n: 1890
 
 
 | 
| Castle Air Museum [Atwater, CA, USA] | 
| [Photo-ID: 13225]  Karsten Palt 2016-10-10 | 
|  | Douglas B-18B Bolo  [info]
 United States Army Air Corps (USAAC)
 Reg.: 37-0029 / BI/24
 c/n: 1890
 
 
 | 
| Castle Air Museum [Atwater, CA, USA] | 
| [Photo-ID: 5339]  Karsten Palt 2012-01-11 | 
|  | Douglas B-18A Bolo  [info]
 United States Army Air Corps (USAAC)
 Reg.: 37-0469
 c/n: 2469
 
 
 | 
| National Museum of the United States Air Force [Dayton, Ohio / USA (Wright-Patterson AFB), USA] | 
| [Photo-ID: 5338]  Karsten Palt 2012-01-11 | 
|  | Douglas B-18A Bolo  [info]
 United States Army Air Corps (USAAC)
 Reg.: 37-0469
 c/n: 2469
 
 
 | 
| National Museum of the United States Air Force [Dayton, Ohio / USA (Wright-Patterson AFB), USA] |