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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. 143 …Robert Gross ar.d 't!r. Jlaher of Lockheed 11~ 55 A.'.!. Gen. Sam Anderson 12…
  • p. 481 …Balloon Volume x Gas Lift Gross Load · It may be noted from this equation that a…
  • p. 482 …Balloon Volume x 24.4 Gross Load K =-w K _ 08.o475Z In turn, w-in…
  • p. 483 …free lift in pounds and G is gross lift in pounds. Although this equation was derived…
  • p. 488 …By equation {10), with a gross load of 52 kg., the unbalance caused by loss of…
  • p. 500 …or a gross buoyancy of 450 lb. • the maximum allowable infle.tion of a 30' diameter…
  • p. 569 …accelerating force equal to 5% of the gross load (52 kg) was acting to bring the…
  • p. 643 …000 feet. In one step, this becomes: Gross Lift/Balloon = (Balloon Volume) x (Difference in molecular…
  • p. 650 (Approximate) where G • gross load A chart, Figure 24, has beendrawn up, based on this equation…
  • p. 652 …G = loss of lift G =gross load (balloon weight plus equipment load) AT : mean temperature difference…
  • p. 653 …not including balloon or its integral parts. Gross load: Load on the gas at release (Balloon…
  • p. 726 …Ballast • • .. • • '" • Total Equipment l~eight. • • • • ' Gross Load • • ' • • • • {56)
  • p. 727 …Balloon volwne x gas litt/mol gross load cu. ft. -----------------NAximum Altitude • • • ft, m.s.l…
  • p. 741 …altitude deter- mined by the displacement and gross load. 7. Control systems Two systems of control…
  • p. 777 …By adjusting th~ gross load to be supported by the gas to equal the total lift…
  • p. 787 …Computations A chart showi~ the relation between altitude, gross lift, and balloon size has been found…
  • p. 883 …The gross load reported should be accurate to the nearest 200 grams. The amount of lifting…
  • p. 885 …A L L 0 0 N 7300 ,, GRoss LoAD Fl G. 17 NYU BALLOON pROJECT I…
  • p. 887 …bubble length and resultant inflated volume, using gross lift as an expression of volume. It will…
  • p. 889 …in Appendix II summarizes the relationship between gross load and floating level for balloons of several…
  • p. 925 …A can of sand is made to weigh the same amount as the required gross lift…
  • p. 933 …the balloon with the equipment load attached. Gross Lift: Lift of all of the gas in…
  • p. 938 …description.______________ Drag chute ---------------------------- Banner description --------------- ---------- Ballast assembly - description -----------~-- Ballast • • • • • • Total Equipment i'ieight • • ' • • • • • • Gross Load • • • • • • • • • • • -86-
  • p. 939 …wnitin_,g________ grams Actual balloon lift • • • • • • • • ". . .• II AActunl gross lift (Balloon lift & balloon wt.) • Number Helium…
  • p. 943 …Gross Lift vs. Bubble Length • • • • • • .107 Graph 3: Buoyancy vs. Altitude • • • • • • • • • .108 Graph 4: Gross Load…
  • p. 955 …BALLOOO DA 'fA General Mills Actual Balloon Estimated Gross Altitude ~ominal Diiameter Volwne Weight Load Limit…
To use the first of thes~ principles it is possible to main-
tain a conditi~n of buoyancy by at least the following two me-
thods: (1) dropping a part of the load. as ballast, to match the
loss of lifting gas which occurs as a result of diffusion and
leakageJ (2) replacement of the lifting gas by evaporation from a
reservoir of liquified helium or hydrogen. Of these two methods,
ballast dropping is most satisfactory from the consideration of
simplicity of control and safety of personnel. While the use of
liquid helium is theoretically ·more efficient, the amount and com-
plexity of control equipment adds much to the cost and also the
weight of air-borne equipment.
The development of non-elastic balloons which oe.n withstand high
internal pressure was investigated. Two designs which compro-
mise extreme cost (required for balloons of high internal pressure)
with small wall strength, hence small super pressure, were tested.
At first, attempts were made to control balloon performance by using
buoyancy-load balance techniques with elastic balloons, but the
difficulties which were experienced resulted in the development of
a third principle of operation combining a non-extensible balloon
with a system of controls which can be applied either to a freely
expanding balloon or to a balloon of fixed volume.
III. ME'IRODS OF ATTACK
The work on the development of controlled-altitude balloons may be
divided into three phases, each one identified by the type of bal-
loon which was us.ed. Concurrent with the balloon development was
the design and testing of control equipment required to maintain
the balloon at specific altitudes. Some of the equipment instru-
mentation was used on more than one kind of balloon, but in general
the problems and methods of attack are identified with one of the
three types of balloons.
A. Rubber Balloons
Following the example of Clarke and Korff, assemblies of neo-
prene rubber balloons were first considered. Using these
freely expanding balloons it was necessary to balance the load
to be lifted with the buoyancy given by an integral number
of balloons. One or more accessory balloons were attached to
the assembly to provide lifting force to carry the train aloft.
Vii th the gear at a predetermined altitude, the lifting bal-
loons were cut loose from the train by a pressure-activated
switch,leaving the equipment at floe.ting level, more or less
exactly balanced. Since there is no inherent stability in an
extensible balloon, any existing unbalance will cause the
train to rise or fall indefinitely until the balloon reaches
-a-

Cases discussed

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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.