A Technique for Shortening Landing Run Distance of an Aircraft by Symmetrical Deflection of Split Elevator and Rudder

Bazuhair, M. A.

doi:10.3103/s106879981802006x

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“…Preliminary computational analysis within the framework of this research showed landing run shortening of 5.6% when thrust reversers are on and 7.1% when the latter is off. During abnormal weather conditions, every increase of headwind speed by 1 m/s may contribute further shortening of ~2.5% (Bazuhair, 2018). As a conclusion, sectioning rudder and elevator was introduced as effective integrated air-brakes.…”

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confidence: 88%

“…Flow Simulation is a software fully integrated in SOLIDWORKS for computing fluid (gas or liquid) flows inside and outside SOLIDWORKS models, as well as heat transfer to (from, between, in) these models due to convection, radiation, and conduction with a proved CFD technology based on solving RANS equations (Dassualt-Systems, 2015). Structured mesh statistics, simulation settings and validation results were detailed in (Bazuhair, 2018…”

Section: Cfd Simulation and Validationmentioning

confidence: 99%

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Balancing an Aircraft With Symmetrically Deflected Split Elevator and Rudder During Short Landing Run

Zuhair

2019

Aviation

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This article investigates methods for balancing aircraft during short straight-line landing run realized by employing split rudder and elevator as air-brakes after touchdown. For standard atmospheric and runway conditions, directional and longitudinal balance equations for aircraft of conventional configuration such as Il-86 are presented. Methods depend on operational and mechanical approaches, where the first requires manual or automatic trim of shortly peaking small pitching, yawing, and rolling moments using dynamic forces while the second suggest some re-design of elevator and rudder control channels to limit deflection angles. The paper describes in detail each method disadvantages and suggests the adoption of automatic operational approach due to less required system modifications and piloting skills.

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confidence: 88%

Section: Cfd Simulation and Validationmentioning

confidence: 99%