Jet Aircraft

Jet Aircraft Designs
Jet Aircraft Designs
September 6, 2014
September 7, 2014
Jet Aircraft

Mega Engineering Vehicle will Design Jet Aircraft with the most advance technology in the world!
The most Advanced Jet Aircraft design!
An aircraft (nearly always a fixed-wing aircraft) propelled by jet engines.

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Jet Aircraft Features And Specifications:

Whereas the engines in propeller-powered aircraft generally achieve their maximum efficiency at much lower speeds and altitudes, jet engines and aircraft achieve maximum efficiency at speeds close to or even well above the speed of sound. Jet aircraft generally cruise at faster than about M 0.8 and around 10,000–15,000 metres (33,000–49,000 ft) or more.
Realisitc Presentations of new Flight Products

Because of the way they work, the typical exhaust speed of jet engines is transonic or faster, therefore most jet aircraft need to fly at high speeds, either supersonic or speeds just below the speed of sound (“transonic“) so as to achieve efficient flight. Aerodynamics is therefore an important consideration.
Jet aircraft are usually designed using the Whitcomb area rule, which says that the total area of cross-section of the aircraft at any point along the aircraft from the nose must be approximately the same as that of a Sears-Haack body. A shape with that property minimises the production of shockwaves which would waste energy.
Jet engine:
Rockets are the oldest type and are mainly used when extremely high speeds or extremely high altitudes are needed. Due to the extreme, typically hypersonic, exhaust velocity and the necessity of oxidiser being carried on board, they consume propellant extremely quickly. For this reason, they are not practical for routine transportation.
Turbojets are the second oldest type; it has a high, usually supersonic, exhaust speed and low frontal cross-section, and so is best suited to high-speed, usually supersonic, flight. Although once widely used, they are relatively inefficient compared to turboprop and turbofans for subsonic flight. The last major aircraft to use turbojets were Concorde and Tu-144 supersonic transports.
Low bypass turbofans have a lower exhaust speed than turbojets and are mostly used for high sonic and transonic and low supersonic speeds. High bypass turbofans are used for subsonic aircraft and are quite efficient and are widely used for airliners.

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