Hover4 engine cooling is assured
by the primary fan, without traditional radiators
and/or secondary cooling fan. The engine is equipped
with air-cooling system with surface oil cooler. (This
type of oil cooler is a special application for heavy-duty
crafts as military thanks. Thus making impossible
occlusions by round, dust, leaves, seaweeds. This is
a usual accident in hovercraft operation.)
Engine and transmission on
independent silent-blocks
All mechanical and structural components
of Hover4 are designed to be light and
easy to replace and repair also during operating missions.
perimetric
natural rubber bumper for bertage and skirt system
protection.
The all purposes
integrated power take-off can activate various fittings
(as hydraverter, pumps, generator). Power take-off
also works with hovercraft standing on the trailer.
Dynamic
Trim Control (DTC) that
enables full control of the hovercraft trim by the
driver. Hover4 enables the steering with the driver
both in standing and seated position. In operation
using standing position the driver can compensate unbalanced
weights.
Automatic
trim by head compensation, obtained through a special
lift air distribution, which does not require particular
manoeuvres while starting or in high speed.
SuperMarine characteristics:
Hull configuration: Hover4 has an
high bow for full waves protection
Semi-watertight electrical system
and water tight electronic and ignition equipment.
Electrical and electronic wiring is complete with IP
68 connectors
Floating hyperlight foam with no water absorption. (Usual polyurethane
foam have a big water absorption in very short time,
particularly with salt water)
The
three-step air filtration system is 20 times the engine requirements. This
enables safe operation in powder, sand, salty water-spray
conditions.
2 casualties accomodation
in protected position.
Performances:
Payload: 320 kgs (displacement:550
kgs)
capacity: 2+2 (displacement:7)
Max speed.75 km/h (solid,
mud, ice, snow: +10% )
Cruising speed: 55 kmh
Approximate obstacle height:
25 cms
Wave height: 60 cms
Wind: 35 kn. (small windscreen)
Autonomy:3/4 hours
Time to pick-up: maximum
10 sec
power take-off: 20 cv max.
Advance Driving Stage: Dynamic Trim Control use
This exercise is done to train the pilot to better compensate the hovercraft balancing it when a weight is charged on the side, i.e. a man in danger.
This is possible thanks to the Dynamic Trim Control, the H4 technique which permits to a trained pilot to keep the hovercraft straight and avoids the vehicle turn over.
In the video the trainer (about 95 kg.) is putting in difficulty the training pilot moving suddenly.
Any other vehicle of these dimensions (430x 200) would easily turn over.
The
trim control problems of a small vehicle, having a payload
sometimes exceeding its weigt, capable of remarkable high
speed
are
not of so easy solution. Our Dynamic Trim Control is the
solution.
All hovercraft in water undergoes to the same hydrodinamics laws of common speed boats, so te prow goes down while the speed increases.
The center of gravity changes under hovering conditions in comparison to the displacement conditions.
Weights vary also for the tank level and sometimes some objects have itself an irregular weight and can not be regularly positioned, turning operations with the high thrust center causes the hull unbalance.
Hovercrafts are very sensible to weights not correctly distributed, which do not permit to keep the cushion parallel to the surface.
H4 has solved these problems through a very efficient system, such to compensate the unbalanced weights, negative inertias, thus permitting excellent turning radius and the rotation on its axis standing by.
The lateral broadside side makes easy the activity of gaining on board a floating body and the balance possibility avoids the turn over not withstanding compact dimensions.
Note
the driver position to compensate the capsizing tendency.
