At the same time, the sides of the hexagon spread apart to increase the width of the cell. This mesh diaphragm can be referred to as a "responsive mesh diaphragm". Since everything is individually powered by BLDC motors the system can be fine tuned making for higher operational efficiency. Accordingly, in a first aspect the invention provides a flexible skirt for a hovercraft, the skirt comprising: a skirt wall; and a mesh diaphragm extending across the interior of the skirt to be placed under tension when the skirt is inflated; wherein the shape of the mesh and the orientation of the diaphragm within the skirt are configured such that in use when a lower edge of the inflated skirt wall encounters an obstacle causing a local reduction in vertical tension in the mesh diaphragm, the portion of the mesh above the obstacle lifts and a resultant change in shape of the mesh causes immediately adjacent portions of the mesh to lower, lowering the skirt wall to either side of the obstacle. This kind of mounting is strong, tight and fast. Such elastic behaviour is prone to global skirt movements rather than desirable local response and leads to changes in skirt geometry with changes in craft weight. Similar characteristics can be achieved by combining two or more cell shapes, such as octagons combined with rectangles.
Video: Griffon hovercraft skirt plans Griffon Hovercraft
A flexible skirt for a hovercraft, the skirt comprising: a skirt wall; and a skirt according to any one of claims 1 to 9, wherein the cell pattern is a. The TD is the longest running vessel in the Griffon Hoverwork range.
A turbo-charged diesel engine, variable pitch propeller and advanced skirt design, delivers a fast, safe performance over a wide variety of terrains and conditions. Crowley Marine and Dr John K.
Hall. Discussion hovercraft skirt RC Hovercraft.
HOVERCRAFT SKIRTS GRIFFON HOVERWORK LTD
yse you are right designing a modle hovercraft skirt is a night mare so far i have used plans that come griffon kit a bit off topic i wnt to the hovercraft museum last week to gete.
The invention relates to hovercraft skirts and in particular to hovercraft skirts including an internal diaphragm. In accordance with the present invention, there is a mesh diaphragm 30 within the bag part 20 of the skirt The other two sides of the hexagonal cells are parallel with one another and join the top ends of the diverging sides to the bottom ends of the converging sides.
The steering is provided by three ailerons, which are connected together. The arrangement may also be installed around the remainder of the craft periphery. Rear, ducted fan is also mounted by Velcro.
Lucas's RC Model Hovercraft Griffon TDX
Hbgusa bookends literary
|I took plans of this model from this site.
The lift motor is mounted by two screws to plywood board. Both skirts work similar, but the black one is more elastic and looks better. The tube that connects the rear motor and the hull makes the whole construction stronger. In some cases it may be appropriate to use a skirt with this type of mesh wall without using an internal mesh diaphragm.
Griffon Hoverwork Griffon TD, with a payload of kg
Worldwide leader in the design & manufacture of hovercraft The people at Griffon Hoverwork have a long. skirt, inflatable cylindrical side bodies to provide.
Here you can find some other hovercrafts that were built using this plan. the lift motor is so big, that the air can not enter the skirt and the model does not hover.
To reinforce the hull, I mounted eight wooden ribs by the sides of the craft.
Steering the hovercraft is completely other than steering the car. Brief Description of the Figures An embodiment of the invention is described below by way of example with reference to the accompanying figures, in which: Fig. The mesh diaphragm can extend from an upper portion of the skirt to a lower portion of the skirt being either attached to the lower part of the upper skirt section e.
Finger skirts offer less resistance during travel over an uneven surface and are more able to conform to rough surface shapes and obstacles being traversed but can result in less craft stability than bag skirts and require distributive air feed arrangements within the hull structure.
Advanced HovercraftInterim Version
Combined bag and finger skirts offer a compromise between the low resistance and conformability of the finger skirt and the stability of the bag skirt.
Al sharq flexible packaging factories uae exchange
|If air leakage from the cushion can be minimised, the efficiency of the operation of the hovercraft can be improved either by a direct saving in lift power or by raising the whole craft slightly higher on its cushion.
A flexible skirt according to any one of claims 2 to 14, wherein the lower skirt section comprises a plurality of fingers, the fingers having a generally U-shape cross-section a base of the 'U' at the top of the finger being joined to the bottom of the upper skirt section and tails of the 'IT extend back towards the hull of the craft, the inner end of each tail being connected to the hull either directly, by ties or by a diaphragm.
A flexible skirt according to claim 27, wherein the cell pattern is a regularly repeating pattern of octagons and rectangles.
Video: Griffon hovercraft skirt plans Underneath a hovercraft skirt
If I were building the craft from the beginning again, I would install smaller lift motor. This mesh 32 may extend around the whole peripheral skirt. It may be part of the surface or a separate object.