Documents / FOIA release

roswell

Office of the Secretary of Defense · 993 pages · text from the file's own layer

The Roswell Report: Fact versus Fiction in the New Mexico Desert was published in 1995 by Headquarters United States Air Force. It was written in response to Representative Steven H. Schiff's request and a General Accounting Office audit, and it contains Col. Richard L. Weaver's report and 1st Lt. James McAndrew's synopsis, along with attachments, appendices and photographs. The report says researchers found no evidence of an extraterrestrial craft or crew. It concludes that the 1947 debris came from a Project MOGUL balloon train.

  • p. 218 …remember these which would make the thing rotate in flight. But this, in the B models…
  • p. 418 …Specltically, he le resnonaible tor tuperv1t1on of the Rotating ~gine Branch and the lon-lotating Encine…
  • p. 428 (Type E preferred) J a rotating commutator ot two segments, an insulator and a conductor; a…
  • p. 519 Corps ML-310/ radiosonde aneroid unit, a metal helix on a rotating cylinder of insulating material…
  • p. 521 …However, this error was minimized by the smoothness of the rotating cylinder and the continuous motion…
  • p. 523 …The performar.ce specifications are as follows: (a) Rotation: one revolution every 12 hours (b) Duration…
  • p. 528 …is recorded by the pen on a rotating smoked drum {B) • In order to prevent the…
  • p. 558 …and as evidenced by the barogram in Figure 20 (12-hour rotation). the balloon maintained its…
  • p. 560 …From the barogram (Figure 22) (12-hour rotation) it appears that the orifice did not permit…
  • p. 671 …and with four turns on a helix rotating once a minute, the pressure read- ability of…
  • p. 908 …This contact is used as a reference point for measuring the speed of rotation of the…
  • p. 910 (b) gears or poor alignment of the rotating cy- linder. The motor gears may be cleaned…
  • p. 911 pending upon the speed or rotation of the mo- dulator motor. The pressure signal appears at…
  • p. 915 …These values may be detected by carefully observing the rate of rotation of the motor, which…
  • p. 916 change in motor speed of five percent or more from the preceding rotation, the pressure value…
  • p. 917 …When rotating e. t about l rpm duration of signals not over 3 to 4 seconds…
  • p. 920 …The recording dr~ rotates once in twelve hours. Therefore, it a :flight lasts over twelve hours…
  • p. 922 …In smoking the drum a long rod is used as a rotating axis. The drum is…
  • p. 923 …The rotation of the drum is once in 12 hours and, therefore, the time-distance relation…
When this transmitter operates at a lower frequency, say
1746 kc, the standard aircraft radio compass can be used to
find the direction to the transmitter. No suitable standard
equipment for ground direction-finding has been available to
the project.
c. Receivers and Recorders Used
For the T-49 and T-69 radiosonde transmitters, standard ground-
station equipment was used to receive and record the signal. An
appropriate receiver (National 110 for the T-49 and SCR-658 for the
T-69) feeds the sigpal through a frequency meter and into a Friez
recorder, model AN}Fl~Q-1(). With this system, frequencies between
10 and 200 cycles per second can be recorded.
When the Olland-Cycle pressure moduletor is used, (see Section VI,
A,3) with low-frequency pulses indicating the completion of the pres-
sure or reference circuit, a recorder made by the Brush Development
Co. (Model BL 212) replaces the Friez recorder and frequency meter.
With the AM-1 transmitter, the usual ground receiver has been the
Hammarlund Super-Pro l.:odel SP-400-X. For aircraft operation, an
aircraft radio compass such as AH/.AJall -Y is used.
D. Batteries Used
To extend the life of the batteries used with the T-49 and T-69
transmitters, experimental packs were developed using both dry
and wet cells. A typical ''12-hour" dry-cell pack for the T-69
was composed of:
B supply: 135V--l ea. B90FL (especially assembled for N.Y.U.
by Burgess Battery Co.) or 6 ea. Burgess
XX30 in series--parallel
A supply: 6V--l ea. Burgess 2F4 or 2 ea. F4H in parallel
C bias supPLy: 45V tap of B90FL or XX30 assembly
With an AM-1 transmitter, the input power required is as follows:
"B" supply, 270 volts at about 300 milliamperes; rr~in "A" supply,
li volts at 600 milliemperes; and a separate "A" supply for the
power amplifier, ll volts at 200 millia.mperes. The battery pack
includes 8 Burgess XX45 or Eveready 467 in series--parallela
2 Burgess 4FH batteries in parallel; and one 4FH, respectively.
This pack lasts about 20 hours in fli~ht. Also included in the
battery container were batteries for auxiliary functions such as
Olland-Cycle or program-switch motors, ballast-control relays,
and bring-down mechanisms.
The problem of operating at cold temperature ~~s given much consid-
eration. Special cold temperature batteries were tried with in-
sufficient difference in performance to justify the added expense
and difficulty of procurement. In addition, it was felt that
-65-

Cases discussed

About this file

FOIA release, from the osd collection. The PDF is mirrored here; the original link is under it. 993 pages are in the text index: search them above, or from the library's search.