The Austhai 1600 Catamaran Series offers a hull designs based on extensive testing of other models in the Austhai range. This boat was designed for economy of construction and operation, with the ultramodern hull design providing economy of operation at cruising speeds from 12 to 30 knots fully loaded. With numerous deck options available this boat may be configured to meet your exact requirements, whether it be as a ferry, work boat, dive boat or live aboard or as a superb base for a personal pleasure yacht. This boat is available in saloon and flybridge models.


Approx. Weight

9.2 Tonnes

Beam (ft/meters)

18.9" /6.09

Length-Centerline (ft/meters)

50 '05" /16.30

Person Capacity


  • Technical Specs
  • Concept Designs
Parameter Symbol Units Value
maximum length (with platform) LMAX m 16.30
length of hull LH m 15.23
length of waterline (at DWL)* LWL m 14.81
maximum beam BMAX m 6.09
beam of hull BH m 6.09
beam at waterline (at DWL)* BWL m 1.53
beam between centres of buoyancy BCB m 4.04
beam at chine* BC m 1.49
maximum depth DMAX m 2.36
midship depth DLWL/2 m 2.33
freeboard forward FF m 1.62
freeboard midship FM m 1.70
freeboard aft FA m 1.29
canoe body draught (at DWL) TC m 0.66
minimum draught (LCC displacement) TMIN m 0.92*
maximum draught (LDC displacement) TMAX m 1.12*
headroom in saloon   m 2.05
air draught (at DWL) HA m 4.30
volume displacement(at DWL) VD m3 12.81
light craft mass (LCC) mLCC kg 9200
mass of craft at minimum operation condition (MOC) mMCC kg 9800
loaded craft mass (LDC) mLDC kg 16800
maximum load mMTL kg 7600
immersion (at DWL)   kg/cm 396.4
number of engines     2
recommended power   HP 2 x (240...700)
maximum speed, lightship (MOC condition)   kts 34...36**
maximum speed, full load (LDC condition)   kts 31...34**
recommended cruising speed   kts 28...30
fuel   L 2 x 1500
water   L 2 x 200
waste   L 2 x 200
crew   - 2...3
Dive tanks-up to     80
passengers / drivers     40..50
Coefficients and parameters      
block coefficient* CB - 0.43
midship section area coefficient* CM - 0.567
waterplane area coefficient* CWP - 0.852
prismatic coefficient* CP - 0.758
longitudinal center of  buoyancy LCB/LWL - 0.425
length to displacement ratio* LWL/VD1/3 - 6.335
displacement to length ratio* DLR - 112.8
static load fator CD - 0.484
deadrise angle at tansom b degrees 11(14)
EU RCD category     B 'offshore'
* - for one hull only ** - estimated speed
All measurements according to ISO8666
DWL corresponds to full load displacement (LDC)
The Austhai 800 WideBody Divecat is CE Certified

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