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Bericht von: Griffon Hoverwork

Fachbericht: Environmentally friendly hovercraft




Environmentally friendly hovercraft


In areas where environmental preservation is crucial, there are huge benefits to operating a Griffon Hoverwork hovercraft over any other type of vessel.


Over the past 30 years there has been a large number of studies of the impact of Griffon models on a variety of natural environments, testing under and over water noise, wash and overland pressure. All of these studies concluded that our hovercraft cause less environmental damage compared to conventional boats.


Blackwell and Greene’s study of the Griffon 2000TD found that it is considerably quieter underwater than similar-sized conventional vessels, as they have an air cushion separating the craft from the water surface and there are no propellers in the water. This reduces the noise pollution and the damage this can cause to wildlife and fragile eco-systems.


In addition, the duration of underwater noise associated with a pass-by of a high speed hovercraft is 10 seconds or less, compared with up to one minute or more for slow moving vehicles.


Airborne noise signatures of the Griffon 8000TD and larger BHT series are just as low, with interior noise levels at about 84.3dB – lower than the noise level of traffic on a busy city road and only slightly higher than a normal conversation (80dB). This is of course far lower than a helicopter, which in many areas is the only alternative to a hovercraft.


A three year research project undertaken in Alaska looked at the impact hovercraft have on fish, small mammals and delicate reef areas. Researchers concluded that there is little to no impact when using a hovercraft, however the propellers of a conventional craft will shred any wild or plant life in its path. Research on a Griffon 2000TD in this region is ongoing.


Excessive wash can, of course, cause erosion to and stir up the bed of shallow water; it therefore follows that any vessel which can minimise this effect is doing less environmental damage. Hovercraft do not just minimise the effects of wash, they virtually totally eliminate it. Unlike conventional boats, hovercraft can traverse shallow water and land on any simple flat surface which is reasonably level, eliminating the need for expensive infrastructure and the materials needed to construct pontoons or jettys. This allows craft to be operated in various locations as and when necessary with almost no upheaval.


Whilst conventional boats have to remain in deep water areas, hovercraft can take the most direct route available, even if this involves crossing sand, shallow water or debris. This makes the journey time far quicker, using a lot less fuel and ensures that the route is as cost effective as possible. There is the added advantage that the Griffon range are made of marine aluminum which can be recycled, whereas other ACV manufacturers use Glass Fibre hulls which cannot be recycled.


Griffon Hoverwork continually undertakes research and development on all craft models to ensure that they are the most up-to-date and environmentally friendly models available on the market. Many of the studies were commissioned by Griffon Hoverwork and were done specifically on the Griffon range.








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