National Archives II (College Park, MD)

Spangenberger Archive

"Proposal" Files for Airplanes, Helicopters and Missiles 1934-1961

RG 72
UD 1048
ID 163451
Sec Class: C
NAII 631 74/63/04 to 75/9/07
1 to 676 Containers
ACC NN3-72-86-4

The index for this accession is located in Box 676.

Stéphane Beaumort of the Secret Projects Forum graciously transcribed it; and his work is available HERE.

As of July 2007, the following boxes have been declassified:

1-358
361
363-369
374-419
421-432
434-435
438
443-447
452-453
471
478
482
484-487
500-520
522-535
537-541
544-552
560-564
566
570
572
578
580-583
585-586
588-593
597-598
600-606
608-615
617-618
620-621
623-624
626-628
630-645
647-653
655-664
672-676