wig ship - SCHOOL OF MECHANICAL ENGINEERING MECH ENG 3016...

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Unformatted text preview: SCHOOL OF MECHANICAL ENGINEERING MECH. ENG. 3016 AERONAUTICAL ENGINEERING I Wing in Ground Effect (WIG) aircraft Aerodynamics Leon Bennett Alexander Frank Thomas McLoughlin Richard Moreton Samuel Randell Seng Wong Wing In Ground Effect (WIG) Craft 2 Project assessment Date and signature Name Signature Date 1. 2. 3. 4. 5. 6. Group mark (please do not write anything in the table below) Criteria Mark (total 100) 1. Project definition /5 2. Research activities /15 3. Group discussion board activity /20 4. Format of the report /10 5. Quality of the presentation /20 6. Completeness /10 7. Handling the questions /20 Project mark (please do not write anything in the table below) Group member Group mark (50% x project mark) Individual mark (50% x project mark) Project mark (Total 100) 1. 2. 3. 4. 5. 6. Wing In Ground Effect (WIG) Craft 3 Executive Summary The wing in ground (WIG) effect has effectively been known to aviators for as long as man made aircraft have existed. The WIG effect is a phenomenon that creates an increase in lift experienced by an aircraft as it approaches the ground for landing, when vortices of air become trapped between the wings of the aircraft and the ground creating a cushion effect. An inherent danger of this effect is that the additional lift can change the angle of attack of a landing craft, causing longitudinal (pitch) instability. If not properly corrected (e.g. in the hands of an inexperienced pilot), the potential exists for stall to occur, which could result in the aircraft crashing with possible casualties. The ground effect is widely seen as a good thing, and most aircraft can benefit from the ground effect in the form of a better landing (helicopters are affected by the ground effect as well). The additional lift provided by the ground effect reduces demand on the engines of an aircraft and power needed in order to stay airborne, thus making it more efficient. The knowledge that ground effect flight is more efficient than traditional flight has lead people to develop craft that exploit this benefit by being designed to fly close to the ground. Development of WIG craft spans roughly over the past 50 years, ranging from small scale recreational craft, to large scale military craft, yet such craft have not become successful mainstream products. This is largely due to the limitations present in existing WIG craft designs, such as the high maintenance nature of having exposed engines in close proximity to the sea, which reduces reliability. Such factors have previously lead to a withdrawal of military funding for research and development in this area, across all major countries that were once rigorously involved in this research. Despite this, the potential still exists for WIG craft design to achieve the functionality required to become successful in niche areas such as high speed transport rather than warfare. Wing In Ground Effect (WIG) Craft 4 CONTENTS 1. INTRODUCTION .................................................................................................................. 5INTRODUCTION ....
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This note was uploaded on 03/19/2012 for the course AEROSPACE MAE335 taught by Professor Inlee during the Spring '12 term at Korea Advanced Institute of Science and Technology.

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wig ship - SCHOOL OF MECHANICAL ENGINEERING MECH ENG 3016...

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