Homepage Link
Buy & Sell Your Boat:
View >> home : power boats : sail boats : canal boats : ribs : pwc"s : engines : trailers : equip 

 
Boat Reviews

       

Yamaha Hydra Drive
Review by Kevin Goulding

Yamaha Diesel Inboard Developments
After years of development of their exciting and broad range of four-stroke outboards Yamaha has chosen its 50th Anniversary to launch an expanded new range of inboard diesels. Yamaha, not an organisation to be held back at the starting blocks, has targeted at this time the mid-range requirements of the sportboat and commercial boat sectors.

Hydra Drive Line Up for 2006

Model
Prop
HP
ME 370
Single & TRP
165
ME 422
Single & TRP
245
ME 422 HO
Single & TRP
275
ME 432
TRP
315

Capitalising upon the good reputation of its workhorse the 4 cylinder ME370, upgraded and larger hp engines are being introduced for 2006. Perhaps upgraded is the wrong description, the number of technological developments is making these latest diesel engines the talk of the industry. Competitors are certainly going to be challenged when the data on these new models is officially released.

The recent announcement by Yamaha is just the preliminary rumble in the jungle. A series of announcements are planned over the next few years which will I guess broaden the range of diesel models towards the lower end of the hp range and later a range of models at the upper end of the hp spectrum.

One thing for sure, Yamaha have chosen to capitalise on their silky smooth and quiet gear change. They have also introduced helical cut gearing on their TRP drive unit for the increased torque output from these latest engines. Other benefits include a quietening of the transmission. The ME 432 utilises a 24-valve OHC and the performance should be remarkable, roll on 2006 so we can try out this powerful new beast.

See our Revenger 29 Review for info on the performance of one of the first ME 422 HO units in the UK.

Something very special has been developed by Yamaha, of particular interest to RIBsters. The power curve has been significantly moved down the rpm range. Not only that but the power output has been increased for the same rpm. What does this mean to you and I? Simply, a strong increase in power delivery from just 1500rpm and upwards maximises the "out-of-the-hole" performance. This is very significant and gives the RIBster a very useful power unit in rough seas. No longer dropping off the turbo and wallowing around until you can pick up speed again, plus a much more responsive acceleration along the wave tops!

A twin counter-rotating propeller (TRP) drive unit has been added to the range offering some 7 different variants across the four models.

In support of the launch of Yamaha"s new range of diesel inboards for 2006 is the establishment of a new diesel service network specifically for these engines. There is a strong possibility that some appointed service organisations will be mobile, bringing Yamaha"s support directly to the customer. Installation of the new units is said to save at least one day due to the pre-installation package delivered from Yamaha to the dealers. Expect this saving to be passed on and reflected in the final price you pay.

Model
Prop
Price Ex VAT
ME 370
Single
£12,900
ME 370
TRP
£13,900
ME 422
Single
£16,500
ME 422
TRP
£17,500
ME 422 HO
Single
£18,200
ME 422 HO
TRP
£19,200
ME 432
TRP
£21,700

Prices include engine and drive, full instrumentation, wiring looms, ignition & warning lamp panels. Choice of propellers, and remote control box.

Oct 2005

For full contact details and photographs visit: HotRIBS       
View >> home : power boats : sail boats : canal boats : ribs : pwc"s : engines : trailers : equip 

Address:
The Boathouse
Comberbach
Cheshire, CW9 6PA
United Kingdom

  Tel. 0845 660 7960   Int. + 44 1606 892800

Copyright © 2005 HotRIBS Ltd
Website by QDOS