ChazzC

Ocean currents & winds impact DR on ships; however, combined with periodic celestial navigation locations DR can be relatively accurate.

Yes, DECCA. I identified an area in the "Atlantic Operating Area" (not the Bermuda Triangle, but near-ish) where DECCA didn't work...

I posted on Clough42's Discourse suggesting that James give it a try (the filament, not the pool).

Sorry

I received an email from online metals today, they are now selling metal, ceramic and glass filaments...

You guys need to get out more: https://www.nist.gov/pml/time-and-frequency-division/time-distribution/radio-station-wwv

But better than having to pay to get rid of it.

I’ve got so much old tech that I’m good for a couple of years (can recycle all you want, but only get one $5 per month so I stretch it out).

Welcome from Pennsylvania!

Some Tips from Eastwood on Managing 10mm Sockets

Having experienced storms in the Caribbean and North Atlantic on this ship I can guarantee we didn’t have any stabilization system. The...

In port (where I could see a horizon) I was able to get within a couple of hundred yards. At sea IIRC matched SatNav within maybe 1/2...

Here in the New World if you are a member at Staples (office products store) you can recycle electronics and get $5 in points to spend...

I changed to “Solar” calculator year ago (if I can see the keys there’s enough light to power them.

I have a "couple" of vernier calipers: They are amongst my "Seldom Used Tools" that can be seen in these two posts on HSM Forum...