Recent content by Lon nan Gruagach

I too have no qualms about copper grease on vehicles... But there is the significant issue of salt water. My post was intended to be presented as a question. Thanks.

The skipper of the aluminium boat that I work on occasionally goes a strange colour when ever I mention copper. She is of the opinion that it will eat through aluminium like molten lead though butter. I would have thought that in copper grease there will be virtually zero contact with any copper...

It'll taste different.

Its the cold weather (climate) that keeps our bighties small and innocuous. Another doomsday tabloid headline prediction for MMGW: Blighty Bighties Bigger

Yeah,if you cant get a low voltage powered LiFePo4 battery charger. I would never dream of using LI(anything) without full charge,discharge dedicated circuit including temperature sensing. When they go, they really go! Not to mention that excessive discharge will dodo them in the blink of an eye.

Charging from the engine will be low voltage from the alternator (unless you are really weird and run an inverter to run the battery charger...) So, you have a dead 240V battery charger or its 240V supply or its cables to the battery system. Start at the charger, do its lights light up? If so...

You could use diodes to drop the voltage... Would need to know the current though. This https://cpc.farnell.com/stmicroelectronics/stth6012w/diode-ultrafast-60a-1200v/dp/SC11403 would probably do. Well, 8 of them in series.

On the only one I have seen the top edge of the compartment is above sea level, which is well defined even when heeling. The top cover (perspex for some strange reason) is sealed to the rest, so no chance of damp from that. The lifting rope exits to the deck without being exposed to cabin air...

Jobs a good'un. All done and dusted. Approx 2,400 tonnes of saw logs and pulp wood. Normal service is now resumed.

Tricky question... The thing with intruder alarms is that they grow, alarmingly (pun intended). You start with a sounder, then you add an alarm timeout (so it doesnt piss the neighbours off at night). Then you add an entry delay so you can turn it off before it sounds when you enter. Then you...

https://www.seabase.eu/category/marine-and-boatbuilding/polyester-resin/

You should read the start of the paper presented on that page. The only reference to polyester is in the abstract. A very similar sentence at the start of the actual paper uses the word plastics, not polyester. Also the paper then explicitly refers to carbon fibre reinforced with epoxy matrix...

I think there might be a few hat suppers coming up... http://www.farnell.com/datasheets/2057100.pdf

Tension isnt nearly as bad as vibration, so a lot of slack can be bad.

Yerbut... Telephone cable for stringing between poles is a whole different kettle of fish! Isnt it copper coated high tensile steel? It will maintain its twisted together shape much better than plain or tinned copper. Also there is strain relief across the join in the form of spiral cable grips.