Insights / Speeds
This page only shows speed claims that were extracted with a source quote. Normalized values are shown in knots when the source gives enough information to convert them; qualitative reports remain visible as quoted claims.
Highest normalized speed
Estimated speed of object (Incident 136a, Knoxville — Setliff account)
high confidence / page 98
1,000 miles per hour / 869 knots
“Mr. Setliff stated that the object was visible for about 3 seconds and traveled at an estimated speed of 1,000 miles per hour at an altitude of about 30,000 feet.”PURSUE-RELEASE-01/fe2c3d8f-a472-4103-b66d-9f258a348680
high confidence / page 98
1,000 miles per hour / 869 knots
“Mr. Setliff stated that the object was visible for about 3 seconds and traveled at an estimated speed of 1,000 miles per hour at an altitude of about 30,000 feet.”PURSUE-RELEASE-01/fe2c3d8f-a472-4103-b66d-9f258a348680
low confidence
approximately 600 miles per hour / 521 knots
“though it wobbled in its northeastward flight it was traveling very rapidly, about 600 miles an hour.”62-HQ-83894/9394b18e-8346-441d-9a86-65fbd12ff7e3
medium confidence / page 1
approximately 500 knots / 500 knots
“traveling at approx 500KTS on a southeasterly heading outbound from KCTG”PURSUE-RELEASE-01/afc8199b-1f0c-4cec-8554-f888c958f205
high confidence
over 500 knots / 500 knots
“THE PLANE WAS MAKING OVER 500 KNOTS.”PURSUE-RELEASE-01/ce20f19d-029c-411e-a657-c9e38acf125a
low confidence
approximately 500 miles per hour or faster / 434 knots
“it came and passed so quick — I guess it must have been 500 miles an hour or faster.”62-HQ-83894/9b355579-a788-4ab2-aaab-14fdd258353c
high confidence
300 to 400 MPH / 348 knots
“silver disc-like or spherical objects at approximately 8,000 feet, traveling northwest toward Mojave at 300 to 400 MPH”PURSUE-RELEASE-01/c6993bd1-7056-4a61-b538-f4b8691b884e
medium confidence / page 5
321 knots / 321 knots
“VELOCITY ESTIMATED AT 321 KNOTS.”PURSUE-RELEASE-01/56c71b1e-ef24-4012-8fba-5b1ea2859431
low confidence
approximately 350 miles per hour / 304 knots
“The objects were flying ab approximately what I would judge to be 350 miles per hour.”62-HQ-83894/9394b18e-8346-441d-9a86-65fbd12ff7e3
medium confidence / page 6
278 knots (estimated) / 278 knots
“VELOCITY WAS ESTIMATED AT 278 KNOTS. UAPS INCREASED SPEED AND CHANGED DIRECTION TOWARDS THE SOUTH.”PURSUE-RELEASE-01/4d31ec51-295d-45dd-83ee-bfe8e1718573
high confidence
estimated 300 miles per hour / 261 knots
“it was flying at a thousand foot altitude and estimated travel at 300 miles per hour.”62-HQ-83894/9b355579-a788-4ab2-aaab-14fdd258353c
high confidence
approximately 300 MPH / 261 knots
“2 silver objects of either spherical or disc-like shape, approximately 8000 ft altitude, speed approximately 300 MPH, heading approximately 320° due north, apparently metallic, no exhaust trails, no sound”PURSUE-RELEASE-01/c6993bd1-7056-4a61-b538-f4b8691b884e
high confidence
290 mph / 252 knots
“PLANE WAS TRAVELING AT TWO HUNDRED NINETY MPH AND WAS ABLE TO CIRCLE BENEATH OBJECT.”62-HQ-83894/7e7776ce-fbe9-47f9-ad24-a93fe5139474
high confidence / page 7
~240 knots (nautical miles per hour) / 240 knots
“OBS 2X ROUND WHITE HOT UAPS DYNAMIC SOUTH AT APPROX 240NM/HOUR IVO 35SQT3423692957”PURSUE-RELEASE-01/bdd29374-6c0f-4b6d-8bfe-8e020030c56a
high confidence
265 mph / 230 knots
“The aircraft was at 8,000 feet; airspeed 265 mph; and the course was 244 degrees, magnetic.”62-HQ-83894/130
high confidence
200 MPH / 174 knots
“Speed of Object(s): 200 MPH- disappeared in 5 seconds indicating great acceleration.”PURSUE-RELEASE-01/fe2c3d8f-a472-4103-b66d-9f258a348680
medium confidence
approximately 200 miles per hour / 174 knots
“he had noted it stopped circling and headed off in an easterly direction at approximately 200 miles per hour, at which time it had faded from the screen in slightly less than 20 minutes.”62-HQ-83894/7e7776ce-fbe9-47f9-ad24-a93fe5139474
high confidence / page 7
168 knots / 168 knots
“FLYING AT AN ALTITUDE OF 24,989FT MSL AND SPEED OF 168KTS.”PURSUE-RELEASE-01/9c5ae0b4-8c8b-471e-b749-ef3eb056cd96
medium confidence
175 miles per hour / 152 knots
“Mr White estimated the speed of the object as being 175 miles per hour, and that it was travelling in an easterly direction, on a course of approximately 110° magnetic.”62-HQ-83894/130
high confidence
approximately 150 miles per hour / 130 knots
“ADAIR estimated its speed at about 150 miles per hour and its altitude at about 5,000 feet.”62-HQ-83894/9b355579-a788-4ab2-aaab-14fdd258353c
medium confidence
approximately 150 mph / 130 knots
“Mr Powell estimated the course of the object to be 200° magnetic, and that the object was travelling at approximately 150 mph.”62-HQ-83894/130
high confidence / page 5
40 knots (constant) / 40 knots
“VELOCITY WAS 40 KNOTS AT FL160 TO FL170. UAP SPEED REMAINED CONSTANT.”PURSUE-RELEASE-01/4d31ec51-295d-45dd-83ee-bfe8e1718573
low confidence / page 1
likely moving at a low speed
“It appeared to be oval/orb shaped, likely moving at a low speed.”PURSUE-RELEASE-01/bb2af2c5-d3ef-4efe-a97c-abc94a7fe92e
high confidence / page 5
Not reported
“Speed: Not reported”PURSUE-RELEASE-01/2907199a-8c66-48fd-8b7e-2c7eb6750575
high confidence / page 2
unknown
“US AIRCRAFT OBSERVED 1X POSS UAP FOR 12 SECONDS AT 2353Z, FLYING AT UNK ALTITUDE AND UNK SPEED, NO INTERFERENCE WAS NOTED.”PURSUE-RELEASE-01/bc3103b3-e992-4e1f-a33e-a6bdd7195656