Engines

[DHutch]

Isn't it the Travelpower that does the final inversion job?

Well, its all one setup really.

- The alternator without the external box isnt much use to many people.

[redfastlad]

We have the 1.7 litre 42BHP Isuzu in our 50 foot boat. The prop shaft installation was badly done, placed too high up and to close to the swim, so we get a bit of vibration. We purchased a smaller Crowthers high effeciency prop, which is 16x12 but equivelent to 18x12, to give extra clearance to the counter.

 

With this setup we reach 6.7 mph at 2400 rpm (flat out). We have pushed many rivers this year feet into the red including the Trent, Severn, and Avon with no problems.

 

Re: Beta JD3, these are not really anything special - just low power tractor engines, and sound like one as well. Never thought much of them, but not actually driven a boat with one.

 

Hope that helps, but probably just muddied the waters more!

 

Cheers,

 

Mike

 

BTW - We would have probably gone for the larger Beta engine if we had a boat built, but the shell already had this unit in it. We , however, do lots of tidal work including the Humber, so...

 

BTWA (By the way again) - My other boat, 60 foot, only has a Lister SR3 (17x? prop) and just about manages 5.3 mph on a good day, but is fine for canal work - just doesn't stop very well!

With the shire 45hp and a 17x12 prop we can reach 7mph (tom tom) on the trent downstream but Crothers recommend a 19x12 ? but they arent taking any orders at the momment as they are flat out

http://shoestring.zapto.org/