In the FWIW category, Andreas Parsch has an entry in his MX [Materiel - Experimental] project number list for something related to the use of the Douglas X-3 as a reconnaissance vehicle. The contractor is identified as Boston University's Optical Research Lab -- note that the first entry is for the Pie Face camera used aboard C-97s in the Berlin air corridor, and later in RB-36 aircraft. Presumably, they had something smaller in mind for the X-3. Obviously, this study didn't produce much of anything in the 'real world.' Here's the listing:
Aerial cameras and photography
- MX-1703-A: 240-inch aerial camera
- MX-1703-B: Glass endurance to thermal shock
- MX-1703-C: Wielding of long focal length spotting camera
- MX-1703-D: Study of installation of panoramic camera in X-3
- MX-1703-E: Research and development of reconnaissance system for X-3
- MX-1703-F: Auxiliary equipment for photographic night reconnaissance
- MX-1703-G: Investigation of electrically modified ADP crystal
- MX-1703-H: Survey of mapping and charting equipment and techniques
- MX-1703-I: Photographic keys
- MX-1703-J: Aerial photography research for BuOrd contractors - #14705 & #15615
