Yamaha outboard powered all-terrain
A Yamaha F20B outboard has been fitted to a Hydrographic Survey Amphibious vessel for the specialised mapping company Redborough Mapping ServiceSupplied and installed by Geelong Boating Centre (GBC), the new 20hp four-stroke is custom mounted for the specific requirements of shallow water surveying.
A range of engine options had been trialled on the transom of the amphibious vessel Arnie since its purchase in 2005.
"After all the on-water trialling in our first year, we became clear on the features we needed in an outboard," said Redborough Mapping Service director, Peter Bailey.
"It had to have more power but be light enough for Arnie to carry, needed forward hydraulic steering, electric start, power tilt, and ideally a four-stroke because Arnie's engine is a 16hp four-stroke lawn mower engine and I only wanted to carry one type of fuel onboard," said Bailey.
"The Yamaha F20 four-stroke met our needs," he said.
The Hydrographic mapping vessel is a Canadian-built Argo 6x6 Amphibious ATV fitted with a dual frequency echo sounder and DGPS equipment. Side buoyancy tubes are added for extra stability, hydraulic steering for single handed use, and easy to reach forward controls mounted on a custom control box.
"Arnie is set up specifically to survey cross sections of rivers, estuaries and dams plus profile beaches," Bailey said.
"It's very stable and capable of carrying two people plus all the equipment onboard.
"Our digital survey methods allow us to take 3D measurements in the same place every month, quarter or year, so that an accurate picture can be developed to see how a beach or river bank is eroding or how a marina or dredge area is filling, providing quantitative data to design engineers," he said.
Based in Bacchus Marsh, Victoria, Redborough Mapping Service is a complete survey and mapping business specialising in Hydrographic surveys of marinas, rivers and dams, plus additional services including GIS and GPS analysis, remote measuring, whole farm planning and computer drafting.
The lightweight F20B four-stroke outboard, built on the new 362cc two-cylinder engine, is a recent release from the Yamaha stable.
Arnie is now the third Yamaha powered vessel at Redborough Mapping Service.
For further information, phone Redborough Mapping Service on (03) 5367 5644, or visit www.redmapping.com.au
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