Kraken

I thought that the floating ice mass of the Arctic was referred to as a polar ice cap, and that an ice shelf is floating ice associated with the coast of a land mass, the most notable of which are located in the Antarctic (the Ross Ice Shelf for example). So isn't it you Carl, rather than Swallowman (and/or the BBC clown) that has his hemispheres mixed up? Basic Geography really.

Thanks for that Richard, I'll give it a try. Thanks for the quoting tip Carl, but still no answers? Am I really that hard to understand? I would be interested in your reply, but you can't be bothered. This is like talking to a politician. Anyway, I'm off to the boat now for ten days relaxation, so have a nice weekend everyone.

Well Phylis, I quite often agree with what you say, but I can't agree with this. My comments in red, directly below the pertinent part of his post, seem perfectly clear to me and is a format widely used on this forum. And I haven't yet learned how to chop up quotes like he does. With regards to clarity, I can't see any significant difference in the format you use here and the one I have used above. If anything, I think it is more clear, with your post there in context. I used the format that I did because is was easier and clear. I, like you, couldn't be bothered to chop up your post into quotable portions. Did you really not even read my post, and yet, draw conclusions? Some how, I rather doubt it. Is it more likely that you don't want to answer? In any case, I'm happy with what I've said, and we will just disagree. I agree, that, as he says, he always has an answer, but, quite often, not correct. Just my opinion of course.

Present in a way that is easy to read? I would say that the red bits are plain English and very easy to read. What part don't you understand? Quote and counter? Isn't that what your black bits and my red bits are? You haven't answered any of my questions, so I can only assume that you have no answer.

Prop calculation programs indicate slippage (losses) in open water to be in the region of 40%. With greater resistance on a biggish canal, like the Grand Union, slippage may be around 50%, and on a small canal, like the Leicester arm, as much as 60%. This would mean speeds of about 1.8, 1.5, and 1.2mph respectively. I agree with Tom. I think that a pitch of 16 will be too little. If you look at prop calculations/programs, there is a direct relationship between pitch and gear reduction. In car terms it's comparable to final drive ratio and tyre diameter. So if you think Peter Thompson's recommended pitch of 19 is correct for a 2/1 reduction, you would need a pitch of 1.5x19=28.5 for a 3/1 reduction. If you think that Richard Horne's pitch of 17 is correct, then you would need a pitch of 1.5x17=25.5. I think if you eventually order a prop from Crowther's, the pitch will be in this region. A little less pitch if you're planning on a butty, and I expect Crowther's would be able to take this into account.

I'm not completely sure of the point you are making (I assume you are making one) but since this is a boating forum, I guess the compare is with BW and the contrast is BW charge a late payment fee? Since you are, on occasion, critical of BW, are you saying that BW have got it wrong and English Heritage have got it right?

Needs a zero? Slippage

£20.75 per metre for 120mm sq cable is stupid expensive? Sounds pretty good to me. Less than half the price of the other place, probably partly because of the 50 metre quantity instead of 10.

I have a Premier and it works quite well. I like it because it's small, but even so, most of the time it generates too much heat for the back cabin. I also like the oven on the right and the door on the fire box. The small fire box means it needs fuel added quite often and can go out quite easily without fairly regular attention. I don't try to keep it in overnight. It would be too warm for me any way.

Not so close to you, but probably do internet/postal orders. They've always had everything I have needed. www.margnor.co.uk/ www.ahc-camberley.co.uk/

Childish and belligerent behavior on your part. No place for it on the waterways. What's the point? Both parties end up stressed and frustrated. We're not talking about someone taking a little extra time here. An hour per lock is unreasonable, even for a pair.

Yes, your point is well made, and I agree with you, quite a few people can maneuver their boats accurately and skillfully without a bow thruster, but millimetre perfect did seem just a bit over the top.

Not even god (well, maybe carl). Do you know how big a millimetre is?

But normally the relay is energised by alternator, not the start key, isn't it?

Sorry Paul, but what I was trying to say is that the smaller SU60 relay uses less power (about half) than the larger SW180

Thanks for that Gibbo, I understand. So are there some other ways to mitigate the 14 watt power consumption of the SW180?

In a system where the starter battery is connected to the alternator and the domestic battery bank is connected through a relay, I understand the need for a robust relay, such as the Alright SW180. I was thinking of rewiring, so that the domestic bank is connected to the alternator and the starter battery is connected through a relay. The shoreline battery charger is 90 amps with a single output for the domestic bank. The only source of charging for the starter battery would be from the alternator via the relay. With my rather mature engine and a less than ideal pulley ratio, I’ve never seen more than 40 amps from the alternator. In future I may be able to increase the pulley ratio by 30% and try a higher output alternator but with the revs I can achieve, I don’t think I will be able to get over 60 amps. Wired like this, do you think that I would be able to use a smaller relay, such as the Albright SU60 (100amps) in order to reduce coil power consumption compared to the SW180?

In addition to ventilation holes into the bilge, would it be a good idea to: a. Remove the lining and insulation behind the fridge and below the water line? b. Seal the front of the fridge aperture from the relative warmth of the cabin and vent the top of the fridge space to the outside?

Good point. But if there is no concern about this type of a leak, I wonder why the lock keeper was so worried about leakage through a damaged mitre, on a river?

We have an intercom with battery powered phones from lounge to steering position, but as our "emergencies" always seem to be of the same type as PJ's, the battery in the lounge always seems to be mysteriously dead.

I always knew it was going to be a maybe, but thought we'd go have a try. Plan B was refill the lock, reverse to Huddersfield, then return over the hill.