Home' Ausmarine : October 2013 Contents 'Mermaid Archer'
Type of vessel:
In survey to:
Crew transfer vessel/OSV
Global Marine Design,
Armada Marine Services,
4.45 tonnes (fully loaded)
2 x Yamaha XL outboards;
Simrad NSS12 3G
iCom UHF, GME VHF
Simrad touch screen
multi-function display, WiFi
Muir free fall power
Dark grey Jotun hull,
Sealed marine sliders
8-pax RFD SOLAS
An Air Rider for Mermaid Marine
makes it ten for Dampier
By MIKE BROWN
Statistics suggest that if you commission
a small personnel transfer vessel for
Dampier, it has to be a Global Marine
Design (GMD) Air Rider.
The latest iteration, a 40-knot,
eight-metre x 3.1-metre x 0.57-metre vessel
for Mermaid Marine, is the port's tenth.
There are several reasons for the Air
Rider's popularity, but the ability to
combine speed with comfort is the key.
Stated baldly, Air Riders have a cathedral or
tri hull form. But they are not like the
weirdly behaving, power hungry craft
dating from the style's last big vogue.
GMD's principal Gavin Mair spent
thousands of hours developing the concept
and the resulting intricate hull form is full
of subtlety and high performance.
As speed increases, ram air generates lift,
reducing drag and increasing the air
cushioning within the tunnels. The
softness of ride into a head sea is almost
uncanny. At other angles with the sea its
behaviour remains immaculate. At rest it is
practically as stable as a jetty.
Air Riders are somewhat complex vessels
to build. With frames and stringers
assembled, the structure appears close to a
solid block of aluminium, to be later
sheathed with shell plating. Global Marine
Design is selective in who builds the vessels
and commissioned Armada Marine Service
for the 'Mermaid Archer'.
Within the available eight metres, GMD
created an extremely competent vessel. Six
passengers sit on back-to-back settees in the
minimum motion area ahead of the
transom, shaded by a hard top. The
wheelhouse comprises two suspension seats
placed in a good relationship with the
controls and offering excellent all round
vision. No air conditioning, of course.
Ventilation is taken care of by sliding side
glass and the absence of a rear bulkhead,
and the vessel features a surprising amount
of storage for such a compact space.
The choice of power units was left to the
owner, and that choice fell on twin
Yamaha 225 outboards. With each V6
motor putting out 168kW, on trials they
delivered 43 knots, which gives the
flexibility for the operator to choose from a
wide range of cruising speeds. Gavin Mair
confidently predicts this vessel will be able
to maintain a comfortable 30+ knots cruise
speed virtually year round in the
For further information contact:
Global Marine Design, Western Australia.
October 2013 AUSMARINE
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