[EMAIL PROTECTED] wrote: > [EMAIL PROTECTED] wrote: >> ----- Original Message ----- >> From: "Mike Stevens" <[EMAIL PROTECTED]> >>> The only time I've ever seen any sign of my engine getting too warm >>> while of the tideway was when I >>> 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 wasn't running completely flat out (just very close). I >> thought it was just me, and my knackered (at the time) Lister (top >> speed at the time 4.7mph!). From your comprehensive and brilliant >> website I noticed you had a British Leyland 1.8 in Felis Catus II, >> so you should have had no problems keeping up! We weren'tflat-out either, but running faster tha normal canal revs. I think our 1.8 was a bit under-cooled at that stage of its history. > > I was on the same trip too (assuming we're talking about the May 2004 > St Pancras Cruising Club trip South London IWA trip actually. > - 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. The rest of us noticed! > 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 think the long swim probably has quite a bit to do with it. And of course hydrodynamic theory (of which I am almost toally ignorant) says that a longer boat has a higher maximum hull spped than a shorter one. > 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. Slow revving vintage engines with big props seem to be much more efficient at turning engine power into propellor-power than do more modern stuff. Mike Stevens nb Felis Catus III web-site www.mike-stevens.co.uk No man is an island. So is Man. ------------------------ 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/
