An Analysis of Airspeed, Altitude, and Acceleration Data Obtained from a Twin-engine Transport Airplane Operated Over a Feeder-line Route in the Rocky Mountains

An Analysis of Airspeed, Altitude, and Acceleration Data Obtained from a Twin-engine Transport Airplane Operated Over a Feeder-line Route in the Rocky Mountains
Author: Martin R. Copp
Publisher:
Total Pages: 664
Release: 1956
Genre: Acceleration (Mechanics)
ISBN:
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Time-history data of airspeed, altitude, and acceleration obtained with the NACA VGH recorder from a twin-engine airplane operated by a regional feeder airline in the Rocky Mountains are evaluated to determine the magnitude and frequency of occurrence of gusts and gust accelerations and the operating airspeeds and altitudes. The results obtained are compared with the results previously obtained from a representative short-haul and long-haul operation.

A Numerical Analysis of the Use of Perforated Walls to Control Shock Location and Movement in an Internal-compression Supersonic Inlet

A Numerical Analysis of the Use of Perforated Walls to Control Shock Location and Movement in an Internal-compression Supersonic Inlet
Author: Clarence W. Matthews
Publisher:
Total Pages: 60
Release: 1969
Genre: High-speed aeronautics
ISBN:
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This paper presents an analysis of the ability of a perforated wall in an internal-compression supersonic inlet to control the motion of the shock due to a variety of transients in the flow values at the engine face. The method of one-dimensional unsteady-flow characteristics was used to calculate the shock motion. The perforated walls were found to contain the shock within the inlet for appreciably larger transient magnitudes than was possible with solid walls.