Evidence Explorer

An observer reported seeing a small object traveling at high speed, accompanied by a throbbing noise. The object was described as black with a silver stripe and was observed from a mountain at a high altitude.

Incident No. 71 — 8 or 9 October 1947, daytime, Las Vegas, Nevada. An Air Force Reserve pilot reported observing a trail appearing high in the sky at an estimated spged of 400-1000 MPH. The object producing the trail was not visible. The trail was white as a cloud, and dissipated in fifteen to twenty minutes. The object proceeded in a straight line, then it …

…icant factors of rocketry in relation to the "flying objects". (a) Maneuverability. A spsacial-purpose rocket can be made ag maneuverable as we like, with very high accelerations either along or normal to the flight path. However, a high-performance Space ship will certainly be large and unwieldy and could hardly be desirned to maneuver frivolously around in…

…ing a rocket-powered vehicle. Onee here, the rocket would probably use more fuel in slowing down for a landing . than it did in initial takeoff, due to Earth's higher gravitational force. A rough estimate of one-way performance can be found by adding the so-called "escape velocity" of Mars to that of the Farth plus the total energy change (kinetic and potent…

…om the top and both = A108 & < fie “S ~ ais Ls c « ry a i . 46 ~ 7 ey) a 5 mers 25 Rushes Se) 3 Ae object was rectangular in . shape, approximately twenty feet high, asicted eet long and.not over two inches thick. It appeared to be made of muslin and was aroam colored... ‘The: sun was bright,.but.there-was no reflection from the object. It. did not seen: to.…

RESTRICTED Page 6 32. In the following sketch, imagine that you are at the point shown. Place an “A” on the curved line to show how high the object was above the horizon (skyline) when you first saw it. Place a “B” on the same curved line to show how high the object was above the horizon (skyline) when you /ast saw it. 33. In the following larger sketch plac…

…ort on AF Form 112—Part II.) At approximately 2145 hours (local time) 4 February 1953, Captain Robert S, Gleason noticed an object overhead traveling at a very high rate of speed, Its altitud¢ could not be accurately estimated but appeared to be very high, The object appeared very small from the ground but was slightly larger than a star, Captain Gleason cou…

…in tert of report on AF Form 118—Part It) At approximately 2145 hours (local time) 4 February 1953 ‘ ES eS = MR 20 ticed an object overhead traveling at a vary high rate of speed, S altitudg..- : could not be accurately estimated but appeared to be very high, The object appeared very small from the ground but was slightly larger than a star, ae. could . uc% …

… Cornell University at 0757, 17 December 1952. ing a jet exhaust, greenish-blue with an orange trail which was moving in a of are in aoproximately two seconds. High cirrus clouds estimated at more ~ Rae of 700 miles per hour, ewe A aT westerly direction at a very high speed. It appeared to traverse 30 degrees 3, Further details concerning above information w…

…llowing aerial phenomenon was observed: a . Light resembling a jet exhaust, greenish—blue with an orange-red trail was moving in a westerly direction at a very high speed. It appeared to traverse 30 degrees of arc in approximately two seconds. High i | cirrus clouds estimated at more that 20,000 feet altitude were present. The light disappeared from view beh…

…ted in letter form the observation of a light resembl- ing a jet exhaust, greenish-blue with an orange trail which was moving in a westerly direction at a very high speed. It appeared to traverse 30 degrees of arc in approximately two seconds. High cirrus clouds estimated at more than 20,000 feet altitude were present, The light disappeared from view behind …

…ollowing aerial phenomenon was observed: a light resembling a jet exhaust, greenish-—blue with an orange-red trail was moving in a westerly direction at a very high speed. It appeared to traverse 30 degrees of arc in approximately two seconds. High cirrus clouds estimated at more that 20,000 feet altitude were present. The light disappeared from view behind …

_RESTRIGTED (CLASSIFICATION) APPROVED ” Gndbed States —— pe TR-3-53 ge XI 5. Vo On _AIR INTELLIGENCE INFORMATION REPORT Report of the Observation of an Unidentified Flying Object | AREA REPORTED ON ane Eo gia AD A Ne ae SE WD phe ie FROM (Agency) Me Austin, Texas l2th Strategic Fighter Wing RDALEQRREPORT: (60°02, One we tama onaY ee DATE OF INFORMATION EVALU…

FORM 112 APPROVED 1 JUPE 1948 , / & < ; ¥; ¥ ; i rath vw 5 - 1 g 7 ~~ uated plied ag oe Pr rotted state i ae eal P” FZ ___AIR INTELLIGENCE INFORMATION REPORT | SUBJECT Reporting of Information on Unidentified Flying Objects Vp{o he ~ A wt 7 — ao) | — —-- rd “AREA REPORTED ON FROM (Agency ) Illinois Director of Intelligence, Has Tenth AF noe eens re ee ernten…

AF FORM 112 APPROVED 1 JUNE 1948 | | ea + eee i iWiitl Saved A /} VCOUNTHY 4 * )” "REPORT NO. (LEAVE BLANK) | United States AFXOI FLYOBRPT 8-52 a : AIR INTELLIGENCE INFORMATION REPORT _ Reporting of Information on Unidentified Flying Objects AREA REPORTED ON FROM (Agency) 1G -—~ Michigan Director of Intelligence, Hg Tenth AF DATE OF REPORT DATE OF INFORMATIO…

… Public Information Office Headquarters Western Air Defense Force Hemilton Air Force Base, Hamilton, California 1. Description of Object: Shape; Unknown due to high altitude. Size: About the size of a pin-head held 2 feet from the eye. Color: Silvery, possibly due to reflection of sun against aircraft-type covering. Speed: Great speed. Estimated as 4 times t…

…3 From 60 to 75 seconds by Colonel McNab. Mr Hunter saw object 10 seconds later when Colonel McNab pointed it out to him, due to the objects terrific speed and high altitude. Visual without aids, The 28th Air Division (Defense) reported no radar contacts with this object during the time and date reported. Lecation of Observers During Sighting: ef the observe…

…: From 60 to 75 seconds by Colonel McNab. Mr Hunter saw object 10 seconds later when Colonel McNab pointed it out to him, due to the objects terrific speed and high altitude. reported no radar contacts with this object during the time and date reported. 4. Location of Observers During Sighting: Eight (8) miles northwest of Sonoma, California, from a knoll in…

…he rear of the object seemed to have a hazy appearance, but the lengthy body was clearly outlined. The object seemed to rapidly gain altitude then fade away, A high-pitched hum, similar to that of an electrical motor, was heard coming from the direction of the object. After, the object disappeared from sight the hum was heard for a few seconds then the sound…

…ow officers observed while on a training mission. Investigation by this office produced the following information; 1. Object was never actually observed, but a high altitude condensation pattern was observed, When first sighted, contrail was approximately 300-500 feet in diameter, The pattern began with a smooth, knifelike leading edge, developing into a cre…