The value of in-flight thrust measurements, along with the benefits of acoustic approaches, makes the current topic of great interest for further development. Originality/value This paper presents unique applications of a time-of-flight acoustic thrust sensor, while providing an original assessment of...
thrust characteristicsMultidimensional calculations are performed to demonstrate that, by its characteristics, the pulse detonation engine (PDE) is a unique type of ramjet propulsion system, which can be used in both subsonic and supersonic aircraft. By a number of examples, it is shown that, in ...
calculationmethodwagverified.Theresultsshowthatthecalculationdataanddesigndata ishighlyctosed. Keywords:in—flightthrustdetermination;highbypassratioturbofanengine; performance;flighttest 供依据,而且能够为发动机设计单位提供改进建议。 更重要的是通过飞行试验可以获取动力装置在不同 工作情况下的性能指标——安装净推力...
Differential thrust can be used for directional control on distributed electric propulsion aircraft. This paper presents an assessment of flight dynamics and control under engine inoperative conditions at minimum control speed for a typical distributed propulsion aircraft employing differential thrust. A metho...
suspended under the wings in two-engine pods. The J47 is a single-shaft axial-flow turbojet engine with a 12-stage compressor section, 8 combustion chambers, and single-stage turbine. The J47-GE-19 was modified to run on gasoline and was rated at 5,200 pounds of thrust (23.131 kilo...
An Airplane Performance Control System: A Flight Experiment Pilot performance and preference measures were obtained for 12 pilots in actual flight operations using a twin-engine general aviation aircraft with both conventional controls and a Performance Control System (PCS). The PCS provides zero... ...
It was rated at 6,000 pounds of thrust (26.69 kilonewtons). It weighed 2,400 pounds (1,089 kilograms). VN799 was the first British airplane built with an axial-flow turbojet engine. VN799, flown by Flight Lieutenant Harry Maule with Scientific Officer I Mike Burgan, crashed at Sutton ...
A scramjet engine made by Northrop Grumman set a record for the highest thrust produced by an air-breathing hypersonic engine in US Air Force history.
Since taking flight, insects have undergone repeated evolutionary transitions between two seemingly distinct flight modes1,2,3. Some insects neurally activate their muscles synchronously with each wingstroke. However, many insects have achieved wingbeat frequencies beyond the speed limit of typical neuromu...
This was the first flight for the number two X-15 with the Reaction Motors XLR99-RM-1 engine, which was rated at 57,000 pounds of thrust (253.55 kilonewtons). The flight plan called for a burn time of 116 seconds, an altitude of 84,000 feet (25,603 meters) and a predicted maximum...