Can the 747 go supersonic?

No. The Boeing 747 was not designed for supersonic flight, though during testing, it was pushed quite close to the sonic speed: Tom Cole, a spokesman at Boeing Commercial Airplane Co., said original flight tests of 747s conducted in 1969 and 1970 took 747-100 models to speeds of Mach 0.99.

Can turbofan engines go supersonic?

Turbofans can tolerate supersonic speeds because the intake creates constant flow conditions irrespective of flight speed. Efficiency for propellers and fan blades is highest at subsonic flow conditions.

Can you go supersonic without afterburner?

Supercruise is sustained supersonic flight of a supersonic aircraft with a useful cargo, passenger, or weapons load without using afterburner (also known as “reheat”). One of the best-known examples of an aircraft capable of supercruise was Concorde.

Can a 747 exceed Mach 1?

A 747 is certainly capable of going supersonic. Boeing and other entities have tested it right up to the threshold of Mach 1 (around 0.98 or 0.99).

What is the maximum speed of a 747 airplane?

The top speed of the Boeing 747 itself is about 570 mph, and this flight maxed out at 825 mph. The difference between “ground speed” (zero bonus) and “air speed” (200+ mph bonus) is also why this speed, while technically faster than the speed of sound, didn’t ever go supersonic.

Can an airliner break the sound barrier?

In 2029, United Airlines flights will break the sound barrier—and a 26-year hiatus of commercial supersonic flight. Chuck Yeager broke the sound barrier more than 70 years ago, but it was no simple task. As an aircraft approaches Mach 1, lift and control both decrease, while drag increases.

How fast do turbofans spin?

Talking about the fan, the typical modern Turbofan like the GE90–115b or the Trent XWB will have the fan spin at around 2,500 rpm. Earlier engines like the early CF6’s would reach speeds of over 11,000 rpm and the PW4000 would reach at least 4000 rpm.

Can turbojets go supersonic?

Yes, in fact nearly all jets designed in the last 50 years, supersonic and subsonic, are powered by turbofans. Turbojets are obsolete. The supersonic ones have low-bypass afterburning turbofans that are quite different from the high-bypass non-afterburning turbofans used on commercial aircraft.

Does the F-22 have an afterburner?

The F/A-22 is the first American fighter aircraft with the ability to supercruise, or fly at supersonic speeds without using the afterburner. It can reach Mach 1.8 using the afterburner.

Can the F 15ex super cruise?

The F-15E can supercruise & further than any other fighter around. It was 1 of the 1st fighters to supercruise, in fact when it 1st supercruised no one paid much attention to it & thought it was just a matter of trivia that the F-15 could go supersonic without afterburners.

What is the cruise speed of a 747?

The Boeing 747 is a large, wide-body (two-aisle) airliner with four wing-mounted engines. Its wings have a high sweep angle of 37.5° for a fast, efficient cruise speed of Mach 0.84 to 0.88, depending on the variant.