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…
td (d 'where 2.1t> !!A_} is the- time during which pressure change of
the airdlurro8h!1~g the balloon is greater than a design value
of pressure change causing ballast flow.
The general equation, then, indicates the relationships between
the variables involved in balloon flight. The discussions in
this section of the report, "Equations and Theoretical Considerations,"
attempt to qualitati~y organize the relationships between these
variables in order t~.t a complete overall picture of the aspects
of balloon flight can be formulated.
It should be stressed that the theoretical relationships as stated
here do not lend themselves to simple insertion into an overall
equation which is easily solved. Rather, solutions .of marv of the
variables are ~n themselves complex. At this time it appears im-
practical to delve too deeply into such matters as "the variation
of diffusion and leakage through various types of balloons under
different conditions" or "a study in the change of coefficient of
drag on a balloon system at all points during its flight." It
has been rr:ore practical to generally state the relationships in
unsolved form and concentrate the experimental portion of the re-
search problem on such :me_tters as actual development of balloon
controls.
V. TELEMETERING
A. Information Transmitted
The need for a balloon-borne transmitter and some system of ground
receiving and recording was recognized early in the ~ork of the pro-
ject. The primary objective of such telemetering was to collect
data to evaluate the altitude controls applied to the balloon sys-
tem. Pressure, perhaps the most irr:portant data, was measured by
the use of radiosonde-type aneroid capsules. A discussion of the
pressure modulators used is given in the following section.
A second use of air-borne transmitters was to provide a beacon for
radio direction-finding. With proper equipment a balloon-borne
transmitter can provide a signal to guide an aircraft, homing with
a radio compass, or provide a position "fix" by the crossed azi-
muths of ground receiving stations.
In addition to these two very important functions of altitude
dete~.ination and positioning, telemetering systems were used to
detect and transmit temperature data and ballast flow data. The
equipment used for these purposes is described below.
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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.