----- Original Message ----- From: Martin <[EMAIL PROTECTED]> > [EMAIL PROTECTED] wrote: >> ----- Original Message ----- >> > was trying to keep up with President and Kildare (and they were running >> > b >> > reasted - which shows just how powerful that steam engine is). >> I was on the same cruise, and I also had to push my engine to keep up, >> but I
> I was on the same trip too (assuming we're talking about the May 2004 St > Pancras Cruising Club trip - and I don't recall us having much trouble > staying > ahead of P&K (I was photographing them for a magazine article) so we were > trying to keep just ahead of them. Our National DM2 is usually quoted as > 18hp, > compared to the 19.5 of our previous Lister SR3, although I can't say > I've >noticed a great deal of difference on the occasions when we're in deep >enough >water to run the engine close to maximum speed. Maybe it's just that >Fulbourne >(being an ex-working boat) is built with a fairly long swim at >front and back and >therefore goes through the water (and feeds water to >the prop) more efficiently I've noticed the bottom of the swim on (at least some) working boats is more curved (producing more of a V shape), thus improving the water to the prop even more. It's rearly done on new boats, but I beleive some one has had one made like this (on this list?). Also I suppose an unloaded motor is quite light compared to a ballested cruising boat, and have a longer waterline length, but then again President will have all these facilities as well. > The National engine actually seems to prefer being worked fairly hard - > I'm not > sure the same could be said of the SR3, although once we'd got a decent > cooling > air duct installed it didn't seem to mind. > Martin L I think all diesels like working hard (modern or vintage), only some of them will still be happish at lower loads as well. A friend of mine works at a generator company, and they will not honour the warrantee if a genny has been running to light. I think they put a minimum loading value on them. The important thing with a diesel is, of course, oil and cooling. They work best at certain temperatures (hence the thermostat on water cooled engines), and it's fairly important to stop them from getting to hot. That reminds me, I must improve the cooling to my SR3 - starts to get a little warm when running hard. Mike ------------------------ Yahoo! Groups Sponsor --------------------~--> Check out the new improvements in Yahoo! Groups email. http://us.click.yahoo.com/6pRQfA/fOaOAA/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/
