Documents / FOIA release
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.
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A desoription of the use of this barograph is given in Part II, "Opera tiona," of this report. B. Temperature Measuremen! To interpret some of the observed balloon behavior, a knowledge of the temperature of the gas and the outside air temFerature was required. The evaluation of "superheat" effects was accomplished pri.me.rily by exposing a conventional radiosonde thermistor inside the balloon with a control thermistor measuring the free-air tempera- ture. Similarly, a thermistor was someti~es installed inside the battery-pack housing to measure the temperature of the batteries. While this system was in use it was general practice to use the standard government service thermistors ML 376/.Aid (brown) and ML 395/W.Q-1 (white). The white elements 1':ere needed' when the ex- ternal temperature was measured, since no adequate protection from the sun was available. Also, at floating level there is no venti- lation to be had since the balloon is stationary with respect to the air. · The resistance of the thermistors was switched into the grid.cireuit of the blocking oscillator of the AM-1 transmitter, and by compari- son with pre-flight ealibrations the audio frequency transmitted could be interpreted in terms of temperature. To record the signal after it was received, a fast-speed Brush Co. Oscillograph Model BL212 is used. (Due to the frequency response of the Brush recording system, the circuit was arranged to give lower frequencies than a standard radiosonde for the same temperature range.) A sample cali- bration chart is shown in_Figure 34. +60 +40 Q +20 cio •0 J.. 0 e •..... -20 -40 -60 20 If, } Freauencv-· c~• J40 60 8/ 100 ~ / v/ Figure 34. Sa:nple calibration chart for temperature measurements. -74-
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.