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Designing the Next Generation Flying Test Bed
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English
Abstract
In 1985 Pratt & Whitney Canada purchased a Boeing 720B for use as an experimental flying engine test bed. The modification program involved major structural changes: the extension of the nose for the attachment of turboprop nacelles; the addition of a wing-like pylon on the right-hand side of the forward fuselage; and modification of the number three engine pylon to provide structural support for a large fan engine. Some secondary modifications were necessitated by the resulting unique configuration. The modifications, installations and flight tests are discussed, with particular attention to the pitot-static systems.
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Citation
Bell, I., "Designing the Next Generation Flying Test Bed," SAE Technical Paper 891049, 1989, https://doi.org/10.4271/891049.Also In
References
- Bell, I.C. “Preliminary Design Weights, Inertias, Load Factors and Information for the Experimental Engine Installations on the 720B Flying Test Bed” Pratt & Whitney Canada Engineering Report 25 November 1987
- Furlong, J.C. “Summary of Analytical Flutter Investigations for the 720B Flying Test Bed Airplane” Boeing Commercial Airplane Company Report 4 January 1988
- Lloyd, A.T. “Versatility Unlimited - the Boeing KC-135 Story” Air International London 19 5 November 1980 220 226 236 238 19 6 December December 1980 271 276 291 295
- Rapp, R.M. “Computational Fluid Dynamics Analysis of 720B Flying Test Bed for Pratt & Whitney Canada, BTS Contract 6-1171-10A-4504” Boeing Commercial Airplane Company Report 17 June 1986
- Schiff, B.J. The Boeing 707 Aero Publishers Inc. Fallbrook, Ca. 1982