Runway Slush Effects on the Takeoff of a Jet Transport

Runway Slush Effects on the Takeoff of a Jet Transport PDF

Author: Daniel E. SOMMERS

Publisher:

Published: 1962

Total Pages: 123

ISBN-13:

DOWNLOAD EBOOK →

In recognition of reduced takeoff and braking performance of aircraft on slush-covered runways of limited length, operational tests were conducted on a commercial jet transport aircraft under a controlled slush environment. The magnitude of slush drag forces was considerably greater than that predicted by earlier tests and theoretical approaches. Aquaplaning of the aircraft at high velocities caused a significant reduction in slush drag. Slush spray impingement against the aircraft and landing wheels was a significant factor in producing additional slush drag to that caused by the tires. Considering wheel size, a proportionately larger slush drag force was produced by the nosewheels than that produced by the main wheels. Considerable slippage in slush was experienced by the nosewheels and forward main wheels with little slippage on the aft main wheels. Considerable slush accumulated in recessed areas of the aircraft and presented a possible operational hazard. (Author).

Performance of the Jet Transport Airplane

Performance of the Jet Transport Airplane PDF

Author: Trevor M. Young

Publisher: John Wiley & Sons

Published: 2019-10-24

Total Pages: 688

ISBN-13: 1119682789

DOWNLOAD EBOOK →

Performance of the Jet Transport Airplane: Analysis Methods, Flight Operations, and Regulations presents a detailed and comprehensive treatment of performance analysis techniques for jet transport airplanes. Uniquely, the book describes key operational and regulatory procedures and constraints that directly impact the performance of commercial airliners. Topics include: rigid body dynamics; aerodynamic fundamentals; atmospheric models (including standard and non-standard atmospheres); height scales and altimetry; distance and speed measurement; lift and drag and associated mathematical models; jet engine performance (including thrust and specific fuel consumption models); takeoff and landing performance (with airfield and operational constraints); takeoff climb and obstacle clearance; level, climbing and descending flight (including accelerated climb/descent); cruise and range (including solutions by numerical integration); payload–range; endurance and holding; maneuvering flight (including turning and pitching maneuvers); total energy concepts; trip fuel planning and estimation (including regulatory fuel reserves); en route operations and limitations (e.g. climb-speed schedules, cruise ceiling, ETOPS); cost considerations (e.g. cost index, energy cost, fuel tankering); weight, balance and trim; flight envelopes and limitations (including stall and buffet onset speeds, V–n diagrams); environmental considerations (viz. noise and emissions); aircraft systems and airplane performance (e.g. cabin pressurization, de-/anti icing, and fuel); and performance-related regulatory requirements of the FAA (Federal Aviation Administration) and EASA (European Aviation Safety Agency). Key features: Describes methods for the analysis of the performance of jet transport airplanes during all phases of flight Presents both analytical (closed form) methods and numerical approaches Describes key FAA and EASA regulations that impact airplane performance Presents equations and examples in both SI (Système International) and USC (United States Customary) units Considers the influence of operational procedures and their impact on airplane performance Performance of the Jet Transport Airplane: Analysis Methods, Flight Operations, and Regulations provides a comprehensive treatment of the performance of modern jet transport airplanes in an operational context. It is a must-have reference for aerospace engineering students, applied researchers conducting performance-related studies, and flight operations engineers.