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New in the library The PURSUE files The Department of War's UAP release, mirrored in full: the videos, recordings and images, each beside its case file. Browse the release → Documents matching “no exhaust” 234 records · page 1
p. 85 …no exhaust flame
22. Mannar of Disappearance: I/S
23. Weather Conditions at Time of Sighting: CAVU, no smoke, haze… p. 86 …He could only see an oblong ball with one light and no wings and no exhaust flame. Trying to close… p. 87 …Effect of Objects on Clouds and/or Exhaust Trail N/S - no exhaust seen
21. Weather Conditions Existing at the… 54 more pages mention it p. 39 …There was no noise nor sound of any kind. The trail or exhaust was very unusual and seemed like a… p. 62 …Tactics No maneuvers
15. Sound None
16. Size Not stated
17. Color - Did not see object
18. Shape Not stated… p. 127 …Exhaust trails N/S - light the color of an incandescent light without appreciable blue & no reddish tinge
Woathor conditions dark… 28 more pages mention it p. 27 …construction B/S
21. Exhaust trails None
22. Weather conditions Clear - with little or no cloud formation visible from ground… p. 49 …There was no noise nor sound of any kind. The trail or exhaust was very unusual and seemed like a… p. 168 …Exhaust trails N/S - light the color of an incandescent light without appreciable blue & no reddish tinge
22. Weather conditions… 32 more pages mention it p. 62 …Exhaust trails No exhaust trail reported
22. Weather conditions clear
23. Effect on clouds N/S
24. Sketches or photographs… p. 63 …rather fast, no rpt of sound, and no report of exhaust trail.
WITNESSES: Dr and Mrs. Ormans. No photographs available. p. 168 …Apparent construction An exhaust trail (smoke)
21. Exhaust trails Appeared as black cloud with no definite shape but looked like… 41 more pages mention it p. 2 …It is quite possible that the objects seen were the exhausts of normal jet aircraft in a steep climb. The… p. 61 …Exhaust trails No exhaust trail reported
22. Weather conditions clear
Effect on clouds N/S
Sketches or photographs None
25… p. 62 …rather fast, no rpt of sound, and no report of exhaust trail.
WITNESSES: Dr and Mrs. Ormans.
No photographs available. p. 150 …construction 1/8x An exhaust trail (smoke)
Exhaust trails Appeared as black cloud with no definite shape but looked like… 30 more pages mention it p. 1 …30k feet
Velocity Stationary to Mach2
Signatures Propulsion No thermal exhaust detected
Radar Intermittent, X-Band(8-12GHz)
Radio 1… p. 23 …None.
(10) EXHAUST OR NOT: Exhaust trail before a white light.
ra bne 2 01 50 p. 33 …Humming noise instead of rushing noise.
(10) EXHAUST OR NOT: No exhaust ."
Copy Furnished:
1 - Chief of Staff, USAF,
ATTN… p. 107 …Visible exhaust or jet openings: No exhaust or jet openings were observed.
15. Control and stability
a. Fins:
No fins… 17 more pages mention it p. 9 …there is no air mass to accelerate, i.e., no "reaction mass" that
can be accelerated and exhausted at high… p. 3 …It is quite possible that the objects seen were the exhausts of normal jet aircraft in a steep climb. The… p. 2 …feet
Velocity Stationary to Mach 2
Signatures
Propulsion No thermal exhaust detected
Radar Intermittent, X-Band (8-12 GHz)
Radio… p. 9 …there is no air mass to accelerate, i.e., no "reaction mass" that
can be accelerated and exhausted at high… p. 4 …The exhaust was described as white except when its speed was increased; then the exhaust turned black. Mr. estimated the… p. 5 …The exhaust was described as white except when its speed was increased; then the exhaust turned black. Mr. estimated the… p. 20 …The ponderomotive force accelerates positive ions and electrons in the same
direction; thus, no dedicated exhaust neutralizer is needed. Since… p. 20 …The ponderomotive force accelerates positive ions and electrons in the same
direction; thus, no dedicated exhaust neutralizer is needed. Since… …Misidentified Military Aircraft Exhaust (Ruled Out): The reported characteristics do not
align with those of military aircraft exhaust …
p. 19 …Terauchi No no , disappear 75 miles north of Talkeetna
R. Gordon Okay 75 miles north of Talkeetna •
K. Terauchi Yeah… p. 5 …Tail, trail, or exhaust - none.
h. Sound - none
1. Pertinent or unusual features - none.
2. Description of course.
a. Brightness… …I could see no wings supporting the object.
The object was cigar shaped and seemed to be about…
…For a rocket of total mass, m, and exhaust speed of the ablated gas relative to the rocket…
p. 1 …FORM NO . 75-3 (REPLACES FORM 30-19, WHICH MAY BE USED UNTIL SUPPLY IS EXHAUSTED ) MAR 1951 p. 1 …What was somewhat surprising to the writer was the exhaustiveness with which these investigations are being made. Not only are… p. 2 …What was somewhat surprising to the writer was the exhaustiveness with which these investigations are being made. Not only are… p. 4 …There was no luminous exhaust and no smoke. After 30 seconds, the phenomenon grew hazy and disappeared. The personnel of… p. 7 …It differed from ordinary aircraft in that it showed no exhaust smoke, made no noise, and had a great speed. p. 8 …It differed from ordinary aircraft in that it showed no exhaust smoke, made no noise, and had a great speed. 1 more page mentions it p. 2 …the object made no noise, that no exhaust streaks were visible and that they noticed no odor.
6. Request was… p. 4 …Be heard no sounds, noticed no odors, and saw no exhaust trails.
PAUL KIRALA
Major, USAF
Chief, ATI Field Office… p. 6 …Jensen heard no sound from the object, noticed no odor, and saw no exhaust streaks in the air.
PAUL YIBALA… p. 8 …SPECIAL INQUIRY UNCONVENTIONAL AIRCRAFT; FILM NO : 24-185; DATE: 2 November 1949
Tactics of maneuvers (cont'd)
Evidence of exhaust … p. 9 …Jensen heard no sound from the object, noticed no odor, and saw no exhaust streaks in the air.
PAIL KUBALA… p. 10 …Johnson heard no sound from the object, noticed no odor, and saw no exhaust strokes.
please
PAUL KURALA
Major, 1954… p. 12 …He did, however, notice that there was no sound from the object at any time, no odor and no exhaust … 1 more page mentions it p. 2 …feet
Velocity Stationary to Mach 2
Signatures
Propulsion No thermal exhaust detected
Radar Intermittent, X-Band (8-12
GHz)
Radio… p. 1 AIR FORCE REGULATION NO .200-2
# INTELLIGENCE
# Unidentified Flying Objects (UFO)
SECTION A—GENERAL Paragraph
Background Information 1
Definitions 2… p. 2 …The great majority of flying objects reported have been found to be conventional, familiar things of no great threat to… p. 2 …There was no luminous exhaust and no smoke. After 30 seconds, the phenomenon grew hazy and disappeared. The personnel of… p. 4 …It differed from ordinary aircraft in that it showed no exhaust smoke, made no noise, and had a great speed. p. 2 …30k feet
Velocity Stationary to Mach2
Signatures Propulsion No thermal exhaust detected
Radar Intermittent,X-Band(8-12GHz)
Radio 1… p. 86 …The exhaust was described as a red-orange flame, the lighter color (orange) being predominant about the outer edges. He… p. 94 …He saw the "exhaust " as a parallel wide flame which appeared to come from the entire rear of the object… p. 95 …It had no fins or protruding surfaces. thought it had a "snout" similar to a radar pole on the front… 10 more pages mention it …There were no abnormalities in the equipment or the aircraft. I
have no idea why they came so…
p. 1 …What was somewhat surprising to the writer was the exhaustiveness with which these investigations are being made. Not only are… p. 2 …Senator Russell had the impression that the object could have been as small as a rocket although there were no … p. 87 …The exhaust was described as a red-orange flame, the lighter color (orange) being predominant about the outer edges. He… p. 95 …He saw the "exhaust " as a parallel wide flame which appeared to come from the entire rear of the object… p. 96 …It had no fins or protruding surfaces. thought it had a "snout" similar to a radar pole on the front… 10 more pages mention it p. 2 …No noise, very quite in area (no cars, planes or other engines running) No trail, no exhaust visible. No odor… p. 1 …As has no official connection with any department of late or earlier but in informally supported by the Office of… p. 2 …It has no official connection with any department of latex or animation but is informally connected by the Office of… p. 13 …Roe Project
exhaust ports. Air is drawn in the leading edge intakes and a large proportion of it is fed… p. 22 …something, which they could not find! No sounds came from them, and no exhaust gases were seen jetting from them… p. 1 …color as an aircraft engine exhaust , white with a trace of pink. I have no estimate of its distance from… p. 34 …Terauchi No no , disappear 75 miles north of Talkeetna
R. Gar.don Okay 75 miles north of Talkeetna .
K. Terauchi… p. 2 …feet
Velocity Stationary to Mach 2
Signatures
Propulsion No thermal exhaust detected
Radar Intermittent, X-Band (8-12 GHz)
Radio… p. 1 …Also,
there were no exhaust trails coming from either the orange or the red orbs. Although I could not
tell… p. 2 There have been day time sightings which are tentatively considered to possibly resemble the exhaust of some type of Jct… REPORT NO . 00-W-24639
INFORMATION FROM FOREIGN DOCUMENTS OR RADIO BROADCASTS
COUNTRY Spain; French Morocco; Algeria; Tangier…
p. 3 There have been day time sightings which are tentatively considered to possibly resemble the exhaust of some type of jet… …DESCRIPTION OF OBJECT(S):
(1) SHAE - NO DEFINITE SHAPE DUE TO DISTANCE.
(2) SIZE - APPROXIMATE SIZE OF PEA…
p. 3 …h e observed was no t a UAS that he familiar with . - noted no exhaust o r
tail when these… p. 3 …If the object is streamlined then the boundary stratum will endeavor not to sever, no whirlvinds will occur, and therefore… p. 4 …If the object is streamlined then the boundary stratum will endeavor not to sever, no whirlwinds will occur, and therefore… p. 1 …color as an aircraft engine exhaust , white with a trace of pink. I have no estimate of its distance from… p. 3 …It left no exhaust or condensation trail.
"We are both absolutely convinced that it could not have been a meteor… p. 4 …It left no exhaust or condensation trail.
"We are both absolutely convinced that it could not have been a meteor…