Guest page Airlift
Hovercraft - Au.
'Mustang'
| Intro -
The 'Mustang' is a versatile craft designed primarily for passenger
carrying in a commercial role.
Applications include private use, commercial passenger carrying, search
and rescue, military patrol and military command and control. Survey to
international standards is available.
The 'Mustang' has an optional fully enclosed cabin with heating and
air-conditioning; cabin access is provided by twin gull wing doors.
Controllability and efficiency have been enhanced by the installation
of a twin ducted thrust system with power assisted elevators. This
unique system has been well proven on our larger Pioneer model and has
no parallel when it comes to the ease of dynamic pitch and roll control.
A proven, fuel injected General Motors V6 provides ample power for
all systems through parallel hydrostatic transmissions.
Wherever possible 'off the shelf' components are used in engineering
the Mustang's mechanical systems. Careful matching of the component capabilities
and craft requirements provides a well balanced mix of components reducing
the use of specialist items.
|
Technical Details
| Description |
Metric
|
Imperial - US
|
| Length - O.A. |
6.52 m
|
20.5'
|
| Length - Hull |
6.2 m
|
20.3'
|
| Width - O.A. |
2.97 m
|
9.7'
|
| Width - Hull |
2.4 m
|
7.8'
|
| Skirt cushion height at bow |
360 mm
|
14"
|
| Skirt cushion height at stern |
310 mm
|
12"
|
| Isolated obstacle clearance |
335 mm
|
13"
|
| Wave height clearance |
750 mm at a pitch of >
12 meters
|
29.5"at a pitch of >
39.3'
|
| Max. recommended speed |
35 knots
|
| Planing speed |
7 to 10 knots (=minimum wash)
|
| Max. full load wind speed |
20 knots gusting to 25 knots
|
| Max. light load wind speed |
25 knots gusting to 30 knots
|
| Crew |
1 operator / pilot
|
| Accommodation |
6 passengers
|
| Payload |
650 kg
|
1433 lb
|
| Engine |
3.8 liter V6 GM with E.F.I.
|
| Fuel consumption |
17 liters per hour (cruise)
|
4.5 gal per hour (cruise)
|
| Fuel capacity |
62 liters
|
16.4 gal
|
| Surface contact pressure |
1050 to 1450 Pascal's
|
| Hull construction |
Glass reinforced composite / PVC foam sandwich
|
| Skirt type |
Pressurized tapered bag and fingers
|
| Lift system |
Single stage axial flow fan, variable speed hydrostatic transmission
with automatic control
|
| Thrust system |
Twin ducted propellers, toothed belt mechanical drive with clutch
|
| Control system |
Integrated servo assisted with dynamic pitch roll and yaw control
surfaces on each thrust unit
|
| Area of operation |
All USL class E waters + some class D
|
|
|
Details
|
| Hull and Superstructure
The hull, deck and superstructure are a vacuum formed laminated sandwich
composite with a PVC core and high tech knitted bi-axial fabric reinforced
resin. This construction has superior stiffness and is very tough. An excellent
strength to weight ratio and very low maintenance requirements are also
achieved. In the event of damage, the hull is easily repaired. Thermal
and sound isolation properties are excellent for this construction system.
All laminating is conducted with active quality control procedures to ensure
the highest quality. The hull construction complies with or exceeds the
Australian U.S.L. requirements.
The hull is built in two parts and bonded together with sealed buoyancy
compartments for maximum safety. Parallel automatic and manual bilge pumps
are provided. A three point rubber cushioned landing pad system is fitted
under the hull for operation off hard surfaces. |
| Engine
Mustang is powered by a reliable General Motors, fuel injected V6 motor
of 3.8 liters capacity. This engine is governed to deliver 123 kW at only
4200 RPM. Typical cruise speed for the engine is 3000 RPM to 3500 RPM resulting
in a low fuel consumption of only 17 liters per hour when cruising. This
smooth running engine combines excellent performance, durability, efficiency
and low maintenance.
The closed circuit cooling system incorporates aluminum water to air
heat exchangers with high capacity hydraulically driven fans. The cooling
system has been engineered for extreme climate operation. |
| Propulsion System
Propulsion is provided by two propellers mounted at the rear of the
hovercraft and operating within aerodynamic fiberglass ducts as seen .
on this image The propellers are of the
wide blade slow speed type for quiet operation.
Fixed pitch propellers are standard, however both adjustable pitch
and variable pitch types are available to specification. Propellers are
manufactured by Airlift Hovercraft.
Power transmission to the propellers is by shaft and toothed belts.
An automatic clutch dis-engages at low speed to stop propeller rotation
at engine idle for safety and to ensure smooth engine start/stop cycles. |
| Lift System and Hydraulic
Transmission
Lift is provided by an axial flow fan mounted
directly under the bonnet at the front of the craft.
Take a
closer look
It is driven by an low maintenance hydraulic
motor. Oil is supplied to the hydraulic motor from a crankshaft driven
variable displacement pump.
An adjustable controller senses the lift fan
speed and automatically adjusts the hydraulic pump out put to compensate
for variable fan load and variable engine speed, thereby maintaining the
fan at a pre-set constant speed. This unique system allows the operator
to use more or less power for thrust as required without concern for over
or under supply of lift air unlike constant ratio mechanical systems which
must always compromise. The hovercraft is therefore both easy to drive
and efficient to operate.
The hydraulic system parts are selected from
world-wide manufacturers standard inventory. Service for this equipment
can be provided by any local competent hydraulic serviceman. All fluids
are S.A.E. specified and commonly available. A high rating ‘tropical’ cooling
system is fitted to the hydraulic circuit. |
| Controls
The Mustang is the first craft to be fitted with our innovative integrated
control column (patent pending). As seen
on this picture
This system provides a simple and ergonomic crew interface to the control
systems and integrates steering, pitch and roll control. All control
systems have proportional hydraulic servo power assistance and incorporate
aerodynamic rudders and elevators mounted in the thrust air stream.
The propeller clutch is preset to operate at a safe engine speed
to allow the 'Mustang' to hover for ground handling without the propellers
running. A foot operated throttle with hand operated over-ride controls
the engine. Lift fan speed is pre-set by a small hand wheel on the dashboard. |
| Skirt
The skirt is a fully pressurized tapered bag and finger system. This
skirt system provides the best hard structure clearance and stability due
to the semi rigid nature of the pressurized bag, performance is outstanding
in difficult conditions and rough weather.
The fingers are bolted on with nylon fasteners and are easily changed
without lifting the craft. Rubberized fabrics are of custom manufacture
to optimize wear and durability. |
| Electrical System
System voltage is nominally 12 volts DC. Power is generated by a 14
volt 85 amp engine mounted alternator. Circuits are protected by mil spec
re-set able circuit breakers. Electrical cable is 105oC rated tinned copper
and routed within conduits and fully sealed where appropriate.
A windscreen wiper is provided for the front windscreen. A water reservoir
with pump provides screen washing to the wiper. The wiper and washers are
controlled by a column switch.
The navigation lights comply with the requirements of the Australian
U.S.L. code and international shipping regulations. Ample provision is
made for accommodating communication and navigation aids. Other system
voltages are available to special order. |
| Fire Detection and Suppression
The engine bay is protected by a fire detection system operated from
the control position. The cabin is equipped with a portable fire extinguisher.
The internal surfaces of fire zones are treated with fire retarding
finishes. |
| Communications and Navigation
The communications radio is normally an VHF marine type. UHF, HF, and
27 MHz radios may be fitted as well as a mobile telephone and an internal
P.A. system if required. Compact marine radar and G.P.S.systems may be
fitted according to the customer's specifications, provided it is compatible
with the craft's electrical system. |
| Optional Extras
Air-conditioning.
Rear cabin and gull wing doors.
Wrap around low level windscreen assembly for use when front part of
cabin is removed.
Cold climate kit, cabin heater, screen de-misters, bigger battery,
radiator freezing inhibitor.
Arctic conversion, separate fueled cabin heater, smaller windows, de-icing
equipment, cabin insulation, cold starting equipment, battery heaters,
dual battery system.
Marine VHF radio, 27Mhz radio, GPS, Cellular Phone.
Storage cover, complete version, covers complete cabin and deck to
top of skirt.
Road trailer, basic towing frame (lift or float off).
Road trailer, complete flat deck with tilt for hover on and off.
Survey to U.S.L. class 2E |