Recent content by lw395

Maybe it's nonsense to someone not very technically qualified, but design engineers would probably understand it.

It's an ill wind which blows nobody any good. Personally I think the financial impact isn't happening yet. The economic fallout hasn't really filtered through to the boat-owning classes. Most of us are still comfortably retired/WFH/business as usual. We haven't been hit by the taxes to balance...

Maybe the biggest problem with the CQR was our Yachtmaster courses used to tell us that a 3:1 scope was OK?

There's also plenty of pictures on the web showing the first few metres not only on the bottom, but buried in the bottom. I've used mixed rodes for years, though I don't go seeking gales to anchor through. I would always want a few metres of chain at the anchor to take the wear. And I'd always...

Dragging two boatlengths over night in 45knots is not a huge amount. That is what he observed underwater, so may include the distance the anchor took to set. Some seabeds are effectively fluid, anchors will drag a little unless they are immense. So what does one anecdote tell us?

What size? What expectations? Atlantic circuit or coastal pottering? You can sometimes find ex-racing sails at good prices.

The short life of the membrane suggests it's very small and likely more work to pump water through than a larger one? The low cost seems dubious to me. Two for under £100? The physical design of it means it can only work on firm level ground quite close to clean (ish) seawater? How many campers...

Some good tactical racing in many of those dayboat classes. Get a dinghy for the fun part. In a normal summer you can sail 3 evenings and all weekend if you pick the clubs....

Apply twisting force and give it a sharp tap along its length, e.g. by banging the end on the ground. Works most times for a telescopic pruning thingy I've got. Try twisting it the other way.... :-)

But it wasn't required to deliver any starting amps, or do much in the way of deep discharge high capacity... OTOH, Yuasa is usually a good choice for anything with two wheels...

From that same interweb, you can get the knowledge that more and thinner plates also gives you more capacity... So if you're comparing a car battery of a certain case size and Ah rating with a Leisure battery of the same size and Ah, the differences may be more subtle. We should not get too hung...

Why do you think thinner plates have a higher CCA rating?

Are diesels around the 0.25 to 0.3 litres per kwH mark? which would be around 0.2 litres per HP.hr? That's power actually used, not the nominal max power of the engine. I've always found fuel consumption to be less than expected in flat water and remarkably more than expected bashing into wind...

If you put the antenna to close to a lump of GRP, it may de-tune the antenna. When you design a product with GPS, you pick a ceramic antenna tuned slightly high so that the plastic case of the product tunes it right. As for how badly it works indoors, you'll never really know until it lets you...

Different batteries are optimised in different ways to meet different specs. There are subtle differences to the alloying of the lead, the structure of the plates, plate thickness, separation. No two batteries need perform the same. How much is advertising hype and how much is genuine...