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Monday, July 27, 2020 | History

1 edition of Ram wing and ground effect craft found in the catalog.

Ram wing and ground effect craft

Ram wing and ground effect craft

Tuesday 19th May 1987 : symposium proceedings.

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Published by Royal Aeronautical Society in London .
Written in English


Edition Notes

ContributionsRoyal Aeronautical Society.
ID Numbers
Open LibraryOL15389084M

Power augmented ram (PAR) engine is a popular equipment to reduce the requirement of power for takeoff and im-prove aerodynamic performance. To provide detailed insight into the aerodynamic characteristics of wing-in-ground effect (WIG)craft with PAR.   The aerodynamic characteristics, specifically the ground effect, of the WIG craft with a compound wing were investigated in a low speed wind tunnel at the Universiti Teknologi Malaysia (UTM-LST). This wind tunnel was able to deliver a maximum air speed of 80 m/s ( knots or km/hr) inside the test section.

Russian called it as an Ekranoplan or a Ram-wing craft, Greek knew it as an Arcopter. It also has other names such as a WISE (Wing-In-Surface-Effect) craft, a Wingship, an AGEC (Aerodynamic Ground Effect Craft), a GEM (Ground Effect Machine) and a Flaircraft. WIGE craft may be called as flying ships as well, because it flies just above the sea.   Flying in ground effect has the potential of carrying larger payloads and with better fuel efficiency than if one were to attempt flying at high altitude. Unfortunately, it is a fair-weather craft.

Looking for wing-in-ground-effect craft? Find out information about wing-in-ground-effect craft. A type of air-cushion vehicle that is similar in design to an aircraft and requires forward speed to provide lift; it flies very close to the surface, Explanation of wing-in-ground-effect craft. The Categorization Of Ground-Effect Vehicles 18 Wing-In-Ground-EfFect (WIG) Vehicles (Ekranoplans) 19 Ram-Wing Vehicles (Aeroskimmers) 21 Planing, Air-Lubricated Vehicles (Hydroskimmers) 25 Power-Augmented Ram-Wing (PAR) 26 PAR/WIG Vehicles 27 Planing/Ram/WIG vehicles (Aerofoil Boats, Winged Hulls) 29 CHAPTER 4.


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Ram wing and ground effect craft Download PDF EPUB FB2

A ground-effect vehicle (GEV), also called a wing-in-ground-effect (WIG), ground-effect craft, wingship, flarecraft or ekranoplan (Russian: экранопла́н – «screenglider»), is a vehicle that is designed to attain sustained flight over a level surface (usually over the sea) by making use of ground effect, the aerodynamic interaction between the wings and the surface.

A 4-seat Wing in Ram wing and ground effect craft book effect craft was designed informed by an extensive literature review of past efforts in WIG craft engineering. Several designs were considered during concept : Hassan Hameed. Material and structural design of WIG craft; Lift and propulsion systems of WIG craft; WIG Craft and Ekranoplan: Ground Effect Craft Technology will be of interest to naval engineers, aviation engineers, naval architects, and mechanical engineers interested in the development and research of wing in ground (WIG) and high performance marine.

For fixed-wing aircraft, ground effect is the increased lift and decreased aerodynamic drag that an aircraft's wings generate when they are close to a fixed surface.

When landing, ground effect can give the pilot the feeling that the aircraft is "floating". When taking off, ground effect may temporarily reduce the stall pilot can then fly just above the runway while the aircraft.

A development history and current development status evaluation is presented for 'ram wing' or 'wing-in-ground-effect' vehicles, with a view to the feasibility of future applications of this family of configurational concepts.

Attention is given to the results of a basic performance and economic feasibility analysis for a large ram wing craft having a gross weight of million lbs and a. A wing-in-ground-effect (WIGE) crafts can be deployed to fly by utilizing the ground effect, which is a natural phenomenon known to improve the efficiency of airplanes during take-off and landing.

A review of various types of ground effect air-craft can be found in Rozhdestvensky () and Cui (). Schematics of wing-in-ground effect settings. (a) Wing of a WIG aircraft; (b) front wing of a racing car.

The use of Power Augmented Ram (PAR) is important for the take-off of WIG vehicles. The exhaust gases from. [2]. If relative ground clearances is less or equal than 10% of the chord of the main wing then it is known as extreme ground effect (EGE) [3].

A wing-in-ground (WIG) effect craft is heavier than air craft that is using GE efficiently by operating just above an underlying surface. Number of terms used to. ground effect (EGE)’’ implies a range of relative ground clearances of 10% of the chord of the main wing or less [3].

A wing-in-ground (WIG) effect vehicle can be defined as a heavier than air vehicle with an engine, which is designed to operate in proximity to an. It is “ground effect” that causes an aircraft to glide above the runway until sufficient speed is lost for the cushion to decay and then allow it to touch down.

Lift increases and resistance reduces near the ground in the zone less than one wing chord above it—the surface effect zone (SEZ) or ground effect zone. Using cushions and/or wings in ground effect, a craft is able to stay aloft for a longer period of time with less power requirements and hence fuel economies.

Over the centuries, developments have continued to be made in all manner of high speed marine craft including hydrodynamic monohulls, fast catamarans, hydrofoils, hovercraft, surface. increased effective aspect ratio in ground effect. The resulting high lift-to-drag ratio of the WIG (wing-in-ground effect) craft thus lead to an increased flight range with a lower specific fuel consumption, and has therefore attracted considerable attention in potential civil and military applications.

The Russian Ekranoplan-type WIG craft, with. the main wing to feed engine exhaust air into the air channel under the wing to create the so-called power-augmented ram wing-in-ground effect craft (PARWIG).

This augmented lift improved the take-off and landing performance by reducing take-off speed and distance. The full story of Alexeev’s craft is outlined in Chapter 2 together with other. Aerodynamic coefficients vary considerably with height in ground effect; longitudinal motion, in particular, reveals modes and stability conditions that are very different from out-of-ground characteristics.

An evaluation is presently made of the consequences of these factors for the feasibility of 'wing-in-ground-effect' vehicles, with attention to the interrelation of height-dependent. Power augmented ram (PAR) engine is a popular equipment to reduce the requirement of power for takeoff and improve aerodynamic performance.

To provide detailed insight into the aerodynamic characteristics of wing-in-ground effect (WIG) craft with PAR engine, numerical simulations are carried out on WIG craft models in cruise.

Find DODGE RAM Ground Effects, Wings & Styling Components and get Free Shipping on Orders Over $99 at Summit Racing. As the L/D of a wing increases with decreasing ground clearance the craft becomes more efficient in ground effect. Span dominated ground effect.

When aeronautical engineers mention ground effect they usually mean span dominated ground effect. The. The Airfish 8 wing-in-ground effect craft could arrive at a superyacht near you before long.

Wing-in-ground-effect craft, cruising at 7m above the waves, could offer safe, speedy and cost-effective transport to and from superyachts; rivalling the use of helicopters and tenders, according to Wigetworks Private Ltd; the maker of the seat.

Keywords: ground effect; power augmented ram; aerodynamics; engines; numerical methods 1. Introduction1 Transport is an important index of economic and defense power of a country. As a promising way, wing-in-ground effect (WIG) craft, or ekranoplan as called in Russia, will play an important role with its high-speed and low fuel consumption.

potential in making use of ground effect to design a new class of low flying marine craft (called WIG effects craft), due to a number of reasons, which include those that are more economics and less technology related []. Literature review further reveals that Wing-in-ground vehicles operate close to the water or ground surface by.

WIG Craft BDG on 75 % is composite boat, 25 % of the parts (power elements of the body) are aluminum. Compare to others WIG crafts, this model is constant steady and high in stability movement with the wing-in-ground effect.

It has the abilities of snow surface take off and maneuvering at the coast line with use of props power. Yang Z, Yang W. Complex flow for wing-in-ground effect craft with power augmented ram engine in cruise. Chinese Journal of Aeronautics ; 23(1): Biographies: YANG Wei Born inhe received M.S.

degree in fluid mechanics from Nanjing University of Aeronautics and As- tronautics and then became a Ph.D. candidate in College of. This configuration is potentially the most influential parameter for the performance and stability of the wing-in-ground effect craft.

As a continuation to the authors’ previous works, in this research, the aerodynamic coefficients of the compound wing have been numerically investigated through the design parametric study in ground effect.