what is the speed does the fastest jet fly?

Answer 1

Air breathing jet? SR-71 Black Bird 3,529.56 KM/H or 2188 Miles an hour 36 miles a minute!

Answer 2

Probably Mach 3+ by the SR-71 Blackbird military recon aircraft. Although they've never published the specs on how TRULY fast it'll go. I remember a story told by Readers digest some years back in the Humor section, about how a cocky new private jet owner was proud of his 200 mph personal jet, and while flying, jauntily requested a radar speed assessment by a Flight Control tower on the ground. After it came over the air publicly, a commercial jet pilot who had heard it, also requested one, it came back 450 mph. Then a military pilot came back with his F-something jet, and it was 600 mph. Then, after a few minutes, a new voice came on, requesting a ground speed assessment. The Controller said over the public airwaves, " Sir, you are flying at 1,900 mph"....the pilot was flying an SR-71 Blackbird. The silence was deafening over the airwaves for awhile. LOL! The rooster lost his crow.... - The Gremlin -

Answer 3

A correction or two. The YF-12 and the SR-12 are two different aircraft with two different purposes, developed from the A-12. They look similar.

The X-15 is 100% rocket powered.

The MiG-25 was forbidden to fly faster than Mach 2.8 because the engines would run out of control and destroy themselves. (Source: Viktor Belenko)

However, the worlds fasted jet propelled, manned aircraft is the Mach 3+ SR-71 Blackbird. It's actual top speed is still very classified, but it was common knowledge in the Air Force that it outran SAM's fired at it.

Answer 4

Commercial Jet: 500-600 KIAS
Figher Jet: The SR-71 Jet at 3000-4000 KIAS

Answer 5

The Sr-71 is now retired so does not fly anymore.

Fly in ointment there...

I'd say at the moment some of the fastest jets flying are the Mig-25 and Mig-31 (Mach 2.83)

Answer 6

The Citation X passenger business jet is the fastest commercial aircraft now that the Concorde is out of service.

It cruises at Mach .92

Answer 7

Keeping in mind that mach 1 is about 760 mph at sea level, but decreases slightly at altitude, and can vary a bit due to temp, humidity, and barometric pressure.....

The fastest jet is the US's X43 which will go mach 9.8 at about 110,00 ft. Mach 9.8 equals roughly 7,000 MPH or 43,500 KPH. It is an unmanned craft, but I don't wanna go that fast anyhow.

The fastest manned aircraft is the US's X15, which scoots along at a more comfortable mach 6.72, at an altitude of 354,000 ft. But I'm not sure if its a jet or rocket in that thing.

The fastest manned airplane, and it is jet powered, is the US's YF12, better known as the SR21 Blackbird. It can make a respectable mach 3.2 right over your head at about 85,000 ft. A relatively low ceiling, but it's real abilities are still classified.

Hangin' right in there at mach 3.2 are Russian MIG25-Rs, code named Foxbat-B, and the US's X2, with service ceiling altitudes of 123,000 and 126,000 ft respectively.

All these are faster than my Dodge Stratus, but a ***** to park. However, they all pale in comparison to a craft with almost no engine at all, and only small manuvering thrusters to steer with.

It is the Apollo 10 re-entry module that exceeded mach 37.6 during re-entry. Rides in it are expensive, but include a change of underwear and complimentary barf bags.

A common garden snail travels at about mach .00003944, or 3/10s of a mph. How long can the little guy keep up that blistering pace? Sorry, that information is classified.

Answer 8

If you are talking passager jets: around 400-450 knots.
Fighter jets: anything up to Mach 2 (Mach=speed of sound)

Answer 9

You get what's spoke of as a Mach cone in the form of an "oblique shockwave". the fee of sound relies upon on the temperature of the air. So it variations from one region to a various.

Answer 10

The Sr-71 blackbird, 2193 mph.