Turbofans in a sentence

These turbofans can produce much more thrust than low-bypass turbofans or turbojets because of the large mass of air that the fan can accelerate, and are often more fuel efficient than low-bypass turbofans or turbojets.

However, proposed upgrades for the aforementioned aircraft may wind their way to the JH-7, such as improved WS-9A turbofans generating roughly 10-15 percent more thrust.

Established in 1907, is considered one of the largest advanced aircraft engine manufacturers in the world and produces engines including turbofans, turboshafts and turboprops.

The Tomcat’s twin TF30 turbofans allowed them to attain speeds of Mach 2.34.

The jet's electric engines, which function like traditional turbofans in a regular passenger jet, are designed to be much quieter and vibrate less than regular gas engines.

Both fans and propellers are powered the same way, although most turboprops use gear-reduction between the turbine and the propeller ( geared turbofans also feature gear reduction).

Engine test beds * The first prototype VX770 had its Sapphire engines replaced with four convert Rolls-Royce Conway RCo.7 turbofans in 1957.

It can be seen in the table (just below) that the subsonic turbofans such as General Electric's CF6 turbofan use a lot less fuel to generate thrust for a second than did the Concorde's Rolls-Royce/Snecma Olympus 593 turbojet.

It flew with the Conways, the first turbofans in the world, until its fatal crash in September 1958.

It would be powered by four IAE V2533 turbofans.

Low-bypass turbofans often use a mixed exhaust nozzle meaning that the bypassed flow and the core flow exit from the same nozzle.

Projected variants The first F-14B was to be an improved version of the F-14A with more powerful "Advanced Technology Engine" F401 turbofans.

The primary difference between turboprop and propfan design is that the propeller blades on a propfan are highly swept to allow them to operate at speeds around Mach 0.8, which is competitive with modern commercial turbofans.

These engines have the fuel efficiency advantages of turboprops with the performance capability of commercial turbofans.

They are quite similar to turbofans in many respects, except that they use a traditional propeller to provide the majority of thrust, rather than a ducted fan.

Thrust-outputting engines, such as turbofans, turbojets and rockets emit the greatest amount of noise because their method of producing thrust is directly related to the production of sound.

Thus jet engines, with a better match between speed and jet exhaust speed (such as turbofans —in spite of their worse )—dominate for subsonic and supersonic atmospheric use, while rockets work best at hypersonic speeds.

Turbofans and ramjets are the only other common forms of jet engine propulsion, although any type of engine could theoretically be used.

Turbofans are generally more efficient than turbojets at subsonic speeds, but they have a larger frontal area which generates more drag.

Turbofans differ from turbojets in that they have an additional component, a fan.