New 22M Ferry Design 'Offshore SeaCat 22'

We are excited to announce our new 22m high speed ferry design, currently under construction at SeaCat Ships. This brand new design was started from scratch and has been a massive undertaking involving a large amount of development work, in the hopes we can sell many more of this model in the future. The design brief from the owner was as follows:  A high performance, medium speed passenger catamaran that can operate as an inter-island transporter (of up to 150 passengers) at medium cruise speeds of 22-25 knots and with low horsepower and excellent fuel economy. The vessel must also be strong enough to operate in offshore conditions with excellent sea keeping. The overall objective is to keep it as simple and economical as possible with a total build which is very cost effective. 

Progress photos above

To meet the brief, we looked back through our design portfolio and decided to go with a new, more modernised version of 'Whitsunday Express' (designed in 1997). This vessel has proven the test of time and is still operational and in the early days given the task of the rescue boat for the Whitsunday Islands, when the seas became too big or in a tropical storm or cyclone. We upgraded the scantlings for Lloyds SSC Code 150Nautical Miles/NSCV 1B standard to increase the tunnel height and plumbed up the bow a bit to increase the waterline length. 

 

The design will be suitable for offshore services and will run smoothly in rough conditions, thanks to the deep vee hulls and aero foil mini keels (which give great tracking in following seas). We have also utilized new technology in the aluminium construction, which is top secret.

 

   Features Include:

• The ferry design layout allows for ease in operation – Passengers can safely and quickly load and discharge at the aft' boarding stations and additionally via beach loading facilities over the bow.
• The captain is perfectly positioned to do the docking and oversee the loading and discharge. ( 3 station)
• The vessel is fitted with twin John Deere 6135 SFM85-M4 engines (2 x 650 h.p.) and the top speed is expected to be 26 to 27 knots with a cruising speed of around 22-25 Knots. (Low fuel burn, see fuel curves below)
• The propulsion system is standard prop/shaft with our aero foil mini-keels which gives protection to the stern gear and the ability to slip on her own hull and give excellent tracking in following seas.
• This ferry has seating for over 150 persons and can operate in offshore conditions. 90 passengers seated in air conditioning in the main cabin, 16 Tourist class seats in air-con cabin behind the helm and 48 el fresco seating outside. All the seats are robust aluminium bench seats with the tourists seats having waterproof cushions.
• Modern, intelligent systems support robust engineering to provide high redundancy, low maintenance and reliable long term operation.
• The fire, flood and safety systems on-board represent the latest technology combined with the best industry practices.
• The cabin arrangement provides simple aluminium bench seating with non-skid flooring to allow for easy cleaning. 
• The open plan deck arrangement also provides access to all areas for light and ventilation.
• Fabricated 400 KG Davit and rescue boat.
• 

This vessel is being designed to Australian NSCV Class 1B (Operating up to 150 NM offshore) The design and construction can be completed to Lloyds, BV, or USCG, depending on the owners’ requirements.

 

SPECIFICATIONS

Name of Vessel:	Seacat Express 22	Type of Vessel:	Ferry/Tourist CATAMARAN
Survey Standard:	NSCV 1B	Home Port:	Australia
Owner:	TBA	Owner Contact	TBA
Operator	TBA	Designer:	Sea Speed Designs
CAD Software:	MAXSURF	Builder:	Sea Cat Ships
Hull Construction	ALUMINIUM	Superstructure	ALUMINIUM
Deck Construction	ALUMINIUM	Length Overall:	22.10M
Length Waterline:	20.85M	Length bp.:	21.70M
Beam:	7.00M	Draught:	1.75M
Depth:	2.26M	Displacement:	45 TONNE
Tonnage/s:	135 GRT	Main Engine/s:	2 X John Deere
(model/power)	650@2100rpm	Gearbox/s:	ZF 500-1A
Propulsion:	Prop/Shaft	Maximum Speed:	26-27 KN loaded
Cruising Speed:	22-25 KNOTS	Bollard Pull:	-
Generator/s:	1 X Zenith 35 KVA	Shaft Auxiliary	NIL
Air Conditioning:	Diacon Split System	Steering System:	Electric Hydraulic
Electronics Supplied By:	Ultimate Marine Systems	Electronics Installed	Sea Cat Ships
Depth Sounder/s:		Radio/s:	ICOM 330
Sonar:	Simrad	Satcom:	-
Autopilot:	A2004	Compass/es:	Ritchie
Weatherfax:	-	GMDSS:	-
GPS:	Simrad	Plotters:	Simrad
Sound System:	Fusion	Video System:	Samsong
Other Electronics:	CCTV & DVR	Electrical By:	PDME Electrical
Electrics installed by:	Palm Electrical	Anchor Winch	Muir 240 V Winch
Tank Gauges:	ITIM	Deck Equipment:
Other Equipment Installed:		Alarm System/s:	Systems Advantage (Sea Fire)
Paints/Coatings:	Jotun marine	Windows:	Toughened Safety Glass
Seating:	Fabricated Aluminium	Flooring/Deck Surface Finishes:	Marine Carpet NON SKID
Interior Fitout/Furnishings:	Aluminium Panels &Ceiling	Lights:	LED
		Anchors:	1 X 82 KG
Liferaft/s:	3 x 50 Man	Lifeboat/s:	-
Rescue Boat/s:		Hold Capacity:	-
Sullage Capacity:	1 x 500 LTR	Water Ballast:	-
Fuel Capacity:	2 X 3500LTR	Fuel Consumption:	TBA
Freshwater Capacity:	1 x 500 LTR	Crew:	3
Passengers:	150 Passengers	Range:	500 NM @ 20KN
Vehicles:	-	Type of operation Envisaged:	TOURIST, FERRY,
Operational Area:	Australia	Date of Delivery:	3rd quarter 2021

 

 

 

 

 

Contact Information

Sea Speed Pty Ltd. P.O. BOX 773 Aspley 4034, Brisbane Australia

Phone Int 668 04406355