Development of a Technique and Method of Testing Aircraft Models with Turboprop Engine Simulators in a Small-scale Wind Tunnel - Results of Tests

This report presents the results of experimental investigations into the interaction between the propellers (Ps) and the airframe of a twin-engine, twin-boom light transport aircraft with a Π-shaped tail. An analysis was performed of the forces and moments acting on the aircraft with rotating Ps. Th...

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Main Authors: A. V. Petrov, Y. G. Stepanov, M. V. Shmakov
Format: Article
Language:English
Published: CTU Central Library 2004-01-01
Series:Acta Polytechnica
Subjects:
Online Access:https://ojs.cvut.cz/ojs/index.php/ap/article/view/530
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author A. V. Petrov
Y. G. Stepanov
M. V. Shmakov
author_facet A. V. Petrov
Y. G. Stepanov
M. V. Shmakov
author_sort A. V. Petrov
collection DOAJ
description This report presents the results of experimental investigations into the interaction between the propellers (Ps) and the airframe of a twin-engine, twin-boom light transport aircraft with a Π-shaped tail. An analysis was performed of the forces and moments acting on the aircraft with rotating Ps. The main features of the methodology for windtunnel testing of an aircraft model with running Ps in TsAGI’s T-102 wind tunnel are outlined.<br />The effect of 6-blade Ps slipstreams on the longitudinal and lateral aerodynamic characteristics as well as the effectiveness of the control surfaces was studied on the aircraft model in cruise and takeoff/landing configurations. The tests were conducted at flow velocities of <em>V</em><em>∞ =</em> 20 to 50 m/s in the ranges of angles of attack α =  -6 to 20 deg, sideslip angles of β = -16 to 16 deg and blade loading coefficient of B 0 to 2.8. For the aircraft of unusual layout studied, an increase in blowing intensity is shown to result in decreasing longitudinal static stability and significant asymmetry of the directional stability characteristics associated with the interaction between the Ps slipstreams of the same (left-hand) rotation and the empennage.
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spelling doaj.art-9b8627e775d04622b30e4a0c071009d82022-12-22T02:04:09ZengCTU Central LibraryActa Polytechnica1210-27091805-23632004-01-01442530Development of a Technique and Method of Testing Aircraft Models with Turboprop Engine Simulators in a Small-scale Wind Tunnel - Results of TestsA. V. PetrovY. G. StepanovM. V. ShmakovThis report presents the results of experimental investigations into the interaction between the propellers (Ps) and the airframe of a twin-engine, twin-boom light transport aircraft with a Π-shaped tail. An analysis was performed of the forces and moments acting on the aircraft with rotating Ps. The main features of the methodology for windtunnel testing of an aircraft model with running Ps in TsAGI’s T-102 wind tunnel are outlined.<br />The effect of 6-blade Ps slipstreams on the longitudinal and lateral aerodynamic characteristics as well as the effectiveness of the control surfaces was studied on the aircraft model in cruise and takeoff/landing configurations. The tests were conducted at flow velocities of <em>V</em><em>∞ =</em> 20 to 50 m/s in the ranges of angles of attack α =  -6 to 20 deg, sideslip angles of β = -16 to 16 deg and blade loading coefficient of B 0 to 2.8. For the aircraft of unusual layout studied, an increase in blowing intensity is shown to result in decreasing longitudinal static stability and significant asymmetry of the directional stability characteristics associated with the interaction between the Ps slipstreams of the same (left-hand) rotation and the empennage.https://ojs.cvut.cz/ojs/index.php/ap/article/view/530windtunnel testingpropeller slipstreamengine failuretest methodology
spellingShingle A. V. Petrov
Y. G. Stepanov
M. V. Shmakov
Development of a Technique and Method of Testing Aircraft Models with Turboprop Engine Simulators in a Small-scale Wind Tunnel - Results of Tests
Acta Polytechnica
windtunnel testing
propeller slipstream
engine failure
test methodology
title Development of a Technique and Method of Testing Aircraft Models with Turboprop Engine Simulators in a Small-scale Wind Tunnel - Results of Tests
title_full Development of a Technique and Method of Testing Aircraft Models with Turboprop Engine Simulators in a Small-scale Wind Tunnel - Results of Tests
title_fullStr Development of a Technique and Method of Testing Aircraft Models with Turboprop Engine Simulators in a Small-scale Wind Tunnel - Results of Tests
title_full_unstemmed Development of a Technique and Method of Testing Aircraft Models with Turboprop Engine Simulators in a Small-scale Wind Tunnel - Results of Tests
title_short Development of a Technique and Method of Testing Aircraft Models with Turboprop Engine Simulators in a Small-scale Wind Tunnel - Results of Tests
title_sort development of a technique and method of testing aircraft models with turboprop engine simulators in a small scale wind tunnel results of tests
topic windtunnel testing
propeller slipstream
engine failure
test methodology
url https://ojs.cvut.cz/ojs/index.php/ap/article/view/530
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AT mvshmakov developmentofatechniqueandmethodoftestingaircraftmodelswithturbopropenginesimulatorsinasmallscalewindtunnelresultsoftests