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Broker Login


  1. Seaboats Main
  2. Commercial Vessels
  3. Hovercraft

25.4m Hovercraft


Listing ID - 1637


Description25.4m Hovercraft
Date Launched
1985
Length25.4m (83ft 4in)
Beam11.2m (36ft 8in)
LocationUK
BrokerRichard Pierrepont
View As PDF 

 
The AP1-88 is a well proven design, which is operational in over 15 locations around the world. Set in a passenger configuration, the craft had a major overhaul in 2010.
 
The Island Express PAPI - 88/100S hovercraft is manufactured mainly from welded marine aluminium and is powered by four diesel engines. The primary structure comprises buoyancy tanks, fore and aft shear walls and engine and fan mounting structures. The flexible skirt is attached to the secondary structure which is outboard of the primary structure and contains the lift engines and lift fans.
 
The passenger cabin contains seating for 95 passengers and is entered at port and starboard doors at the rear of the cabin. A door at the front of the cabin is for crew only but may be used in an emergency. Hand baggage racks are provided at the rear of the cabin. Panniers on the aft side decks carry the heavier luggage.
 
The control cabin is raised above the passenger cabin at the forward end. Access is by a door in the port side of the control cabin which may be gained by a ladder from the fore deck or by a ladder from the port aft side deck. Alternative access is by an internal ladder from the passenger cabin through a hatch in the control cabin floor.
 
SPECIFICATION SUMMARY:
Type: PAP1-88/100 S Hovercraft
Year built: 1985
Dimensions when hovering-
Length: 25.4m
Beam: 11.2m
Maximum passengers 95
Maximum crew 4 (Captain, Navigator & two crew)
Maximum Operational Speed (at full payload) 45 knots
Standard Endurance 10 hours
Maximum All-up weight 44250 kg
Maximum sea state 1.5m to 2.4m
Obstacle clearance 0.9m to 1.1m
* Based on 300 litres per hour at cruise speed with all tanks full, inc a 10% reserve
 
Forward propulsion is provided by two 12 cylinder MTU water cooled diesel engines driving carbon fibre shafts by toothed driving belts.
 
Thrust is provided by two Hoffmann, fixed pitch, four bladed propellers in ducted enclosures. The slipstream from each propeller passes over three rudders for directional control.
 
Port and starboard bow thrusters provide additional directional side force control and a rolling moment to the resulting turn. They can also be operated in an astern mode. The thrust from the bow thrusters is proportional to lift engine rpm.
 
The craft 28v dc electrical system is powered by four engine driven generators. Distribution is by a main busbar with emergency ser-vices drawing power from an emergency battery and an essential services busbar.
 
An intercom and public address system is incorporated and external communications can be made by a VHF radio set and by an SSB radio. The latter is fitted with a GMDSS facility. Radar installation is provided for collision avoidance in conjunction with the compass and as a navigational aid. A Magnivox DGPS navigation system is also fitted.
 
The engine bays are equipped with fire detection and double discharge fire suppression systems. Portable, hand operated extinguishers are also carried in the passenger and control cabin.
 
Power Units and Transmission
Lift Engines
Two Deutz - BF 12L 513 C air cooled, turbo charged diesels, 525 hp, (386 kw) at 2300 rpm fitted with Bosch mechanically governed, in line injection pumps to Hovertravel spec. ARG 90 / DPO / 000 - 5% derated.
 
Propulsion Engines
Two MTU - 12v 183 TB 32 water cooled, turbo charged diesels, 820 hp, (613 kw) at 2100 rpm fitted with Bosch mechanically governed, in line injection pumps with RQV speed governors.
 
Propellers
Two Hoffmann 2.755 mtr. (9 ft.) diameter, fixed pitch propeller type HO - E - 214U. Pitch angle is pre-set at 22 deg. Positive.
 
Lift Fans
Bow thrusters - Two pairs, one port and one starboard, of centrifu-gal fans 840m/m (33 in.) diameter.
Lift - Four pairs, two port and two starboard, of centrifugal fans 885m/m (34.84in.) diameter).
 
Propeller Drive:
Engine and propeller shaft coupled by a toothed driving belt. Ratio –1 : 1.406
 
ENGINES
Two 12 cylinder DEUTZ air cooled diesel engines are mounted within the port and starboard side structures, each driving three pairs of centrifugal fans. The forward pair in each case are used to supply air to the bow thrusters and the other two pairs supply lift to the cushion.
 
Engine Hours
Lift Engine (port) 3749.05* TSO
Lift Engine (stbd) 3610.45* TSO
Prop Engine (port) 7893.40* TSO
Prop Engine (stbd) 2584.00* TSO
* These were the hours on the 17th October 2015
 
FUEL SYSTEM
Engine fuel is carried in 3 welded aluminium tanks, two forward and one aft and is also used for ballast trim purposes. The fuel system is fitted with electrically operated shut off cocks, fuel booster pumps and filters with water separators.
 
Fuel Capacity (usable)
Maximum 3400 litres
Normal 2500 litres
 
Fuel consumption (at cruise speed)
300 litres per hour
 
SAFETY EQUIPMENT
The safety equipment comprises:- first aid chest, signalling light, parachute and hand held flares, axes, torches, crew and seat stowed lifejackets for each passenger. Two lifebuoys are provided by the passenger doors equipped with a 30 metre lifeline. The fitted liferafts are capable of carrying all passengers and crew members.
 
ENGINE LUBRICATION OIL SYSTEM
Function: Lubrication of engines
Oil: Lift and Propulsion engines - Castrol RX
Super Plus, SAE 15-40
Lift Engine: 29 litre (6.379 gal.)
Propulsion Engine: 41 to 50 litres
 
PROPULSION ENGINE COOLING SYSTEM
Coolant: Castrol Anti-Freeze NF. 50 / 50 with water Transmission Mubrication
Function: Lubrication of transmission bearings and gear couplings.
Grease: All bearings - Castrol Spheerol EPL 2
Gear Couplings - Castrol Spheerol EPL 1
Oil: Propeller rear bearing - Castrol Alpha SP 220
 
HYDRAULIC OIL SYSTEM
Function: Power assistance to the rudders
 
FUEL SYSTEM
Fuel Spec: Marine Gas Oil LS - (to BS 2869 1970 Class A1)
Max. Contents: 3 x 1136.5 litre (3 x 250 gal) fuel tanks.
Normal Operational Contents: 3182.2 litre (700 gal)
 
ELECTRICAL SYSTEM
System: 28 volt dc
Supply: Prestolite 155 Amp
Batteries: Start / Service S1 -2 x 12v 240 Ah Start / Service S2 - 2 x 12v 240 Ah Essential Service -2 x 12v 120Ah Radio - 2 x 12v 1.2 Ah
 
MARINE EQUIPMENT
Radios:
VHF - 1 ICOM IC M503
VHF - 1 SAILOR RT 5022
VHF - 2 Icom M15E
SSB - 1 FS 1562
Thrane & Thrane CapSatellite Maritime
Telephone TT - 3064A
Telephone TT - 3064A
 
Radar:
Furuno FAR 7 Series
 
GPS:
SIMRAD MX510 DGPS
 
Compass:
Furuno Satellite Compass
 
Compass standby:
Type - E2B
 
 


The details of all vessels are offered in good faith but we cannot guarantee or warrant the accuracy of this information nor warrant the condition of the vessel. Any buyer should instruct their agents, or their surveyors, to investigate such details as the buyer desires validated. This vessel is offered subject to sale, price change, location or withdrawal without notice.

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