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A multi-axis thrust vectoring engine nozzle in motion. Thrust vectoring, also known as thrust vector control (TVC), is the ability of an aircraft, rocket or other vehicle to manipulate the direction of the thrust from its engine(s) or motor(s) to control the attitude or angular velocity of the vehicle.
The aircraft involved was an Airbus A330-342, registered as B-HLL with serial number 244, fitted with two Rolls-Royce Trent 772-60 engines. It first flew on 4 November 1998 and was delivered to Cathay Pacific three weeks later on 25 November. [3]
Diagram of a typical gas turbine jet engine. Air is compressed by the compressor blades as it enters the engine, and it is mixed and burned with fuel in the combustion section. The hot exhaust gases provide forward thrust and turn the turbines which drive the compressor blades. 1. Intake 2. Low pressure compression 3. High pressure compression ...
Engine Origin Designer Vehicle Status Use Propellant Power cycle Specific impulse (s) [a] Thrust (N) [a] Chamber pressure (bar) Mass (kg) Thrust: weight ratio [b] Oxidiser: fuel ratio
Also, the direction of the force of thrust is generally fixed in the body frame, though some aircraft can vary this direction, for example by thrust vectoring. The wind frame is a convenient frame to express the aerodynamic forces and moments acting on an aircraft.
Afterburner-equipped engines may also open the nozzle for starting and at idle. The idle thrust is reduced which lowers taxi speeds and brake wear. This feature on the J75 engine in the F-106 was called 'Idle Thrust Control' and reduced idle thrust by 40%. [28] On aircraft carriers, lower idle thrust reduces the hazards from jet blast.
The single-engine tests were a success, but the program was halted before the testing for the two-engine setup could be completed. The XRS-2200 produces 204,420 lbf (909,300 N) thrust with an I sp of 339 seconds at sea level, and 266,230 lbf (1,184,300 N) thrust with an I sp of 436.5 seconds in a vacuum.
For the He 280, a pair of turbojets were used, each one installed in a mid-wing position, which was viewed as a more straightforward arrangement. [14] Despite its novel propulsion, the design had adopted numerous relatively orthodox features, such as a typical Heinkel fighter fuselage , semi- elliptical wings, and a dihedralled tailplane with ...