I think I am correct in saying that proper marine engines were rated on the BHP at the output shaft. My own modest unit is rated at 12 bhp and was manufactured in 1968 it was designed for small fishing boats but the first unit for sale was my engine No 6. It was installed by the engine manufacturers and the prop chosen was 17"X17" to give me a maximum speed of 8 knots on deep unrestricted water. A friend installed one (No.16) in his 40 ft steel narrowboat again with the same prop. and this gave stirling service for many years eventually ending up in my possession.The maximum engine revs are 3200 and with a two to one reduction box gives a maximum shaft speed of 1,600rpm. Some years ago I towed a broken down 45ft. steel narrowboat on unrestricted waters at a speed that astonished the owner. Where is the need for some of the massive engines fitted in present day narrowboats, and 9hp for a bow thruster!. Chris.KP NB toohottosleep.
[Non-text portions of this message have been removed] ------------------------ Yahoo! Groups Sponsor --------------------~--> See what's inside the new Yahoo! Groups email. http://us.click.yahoo.com/2pRQfA/bOaOAA/yQLSAA/ygtolB/TM --------------------------------------------------------------------~-> Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/canals-list/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
