Accession Number:

AD0752557

Title:

V/STOL Aircraft Aerodynamic Prediction Methods Investigation. Volume 1. Theoretical Development of Prediction Methods

Descriptive Note:

Final rept. 1 May 1969-31 Jan 1972

Corporate Author:

NORTHROP CORP HAWTHORNE CA AIRCRAFT DIV

Personal Author(s):

• Wooler, Peter T.
• Kao, Hsiao C.
• Schwendemann, Myles F.
• Wasson, Howard R.
• Ziegler, Henry

Report Date:

1972-01-01

Pagination or Media Count:

238.0

Abstract:

Analytical engineering methods are developed for use in predicting the static and dynamic stability and control derivatives and force and moment coefficients of lift-jet, lift-fan, and vectored thrust VSTOL aircraft in the hover and transition flight regimes. The methods take into account the strong power effects, large variations in angle of attack and sideslip, and changes in aircraft geometry that are associated with high disk loaded VSTOL aircraft operating in the aforementioned flight regimes. The theoretical development of the prediction methods is presented in this volume.

Descriptors:

• *AERODYNAMIC CHARACTERISTICS
• *SHORT TAKEOFF AIRCRAFT
• MATHEMATICAL MODELS
• INTERACTIONS
• VORTICES
• WAKE
• FLOW SEPARATION
• VERTICAL TAKEOFF AIRCRAFT
• MAPPING(TRANSFORMATIONS)
• LIFT
• FLOW FIELDS
• STALLING
• MATHEMATICAL PREDICTION

Subject Categories:

• Aerodynamics
• VSTOL
• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE