The Austhai 800 Cabcat is an exceptional boat with a multitude of potential uses. The cabin provides basic overnight accommodation, while the huge rear cockpit area lends itself to a range of activities from on water socializing to serious fishing. The ultramodern hull design provides a seaworthy, fast, comfortable economical craft.
austhai 800 boomerang cabcat, thailand catamarans, cabin cruisers


Approx. Weight (LLC)

2150 kg

Beam (ft/meters)

8'3" /2.55

Length-Centerline (ft/meters)

27'01" /8.23

Person Capacity


  • Technical Specs
  • Concept Designs
Parameter Symbol Units Value
maximum length LMAX m 8.23
length of hull LH m 8.14
length of waterline (at DWL) LWL m 6.99
maximum beam BMAX m 2.55
beam of hull BH m 2.49
beam at waterline (at DWL)* BWL m 0.76
beam between hulls CL BCL m 1.56
maximum depth DMAX m 1.73
midship depth DLWL/2 m 1.67
freeboard forward (lightship) FF m 1.39
freeboard midship (lightship) FM m 1.31
freeboard aft (lightship) FA m 0.48
canoe body draught (lightship) TC m 0.34
minimum draught (lightship) TMIN m 0.74
maximum draught (loaded) TMAX m 0.88
headroom in cabin   m 1.90
air draught (at DWL) HA m 3.33
bridgedeck height (vertical clearance)   m 3.93
volume displacement (LCC condition) VD m3 2.10
light craft condition mass (LCC) mLCC kg 2150
minimum operation condition mass (MOC) mMOC kg 2350
loaded craft displacement (LDC) mLDC kg 3550
maximum load mMTL kg 1400
immersion (at DWL)   kg/cm 97.6
number of engines     2
recommended power     115…200
maximum design speed (MOC condition)   kts 45**
maximum design speed (LDC condition)   kts 40**
recommended cruising speed   kts 30…35
fuel   L 2x300
water   L 1x60
passengers/crew     8
Coefficients and parameters      
block coefficient CB - 0.580
midship section area coefficient CM - 0.737
waterplane area coefficient CWP - 0.872
prismatic coefficient CP - 0.787
longitudinal center of buoyancy LCB/LWL - 0.411
length to displacement ratio LWL/VD1/3 - 5.460
displacement to length ratio DLR - 208
static load factor CD - 0.703
deadrise midships bM degrees 30(36)
deadrise at transom bTR degrees 21(27)
* - for one hull only   ** - estimated speed
 All measurements according to ISO8666
 DWL corresponds to light craft condition (LCC)
The Austhai 800 Boomerang Cabcat is CE Certified

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