New ways vs Old ways CNC vs manual

[SmithDoor]

With the tube method, you have to make sure there are no air bubbles or one end of the tube will be lighter in weight than the other, then you will NOT have level.

Try in a few modern Sextant they spirit level (they spirit fluid so does not freeze) No a modern nuke Aircraft carry is using a water for navigation. Aircraft use spirit level or mercury (no horizon )

Dave

 

[SmithDoor]

How about Jonhy come lately
Radio Compass and E6B.
. Lessthan 150 years.
Any ever use one ???

Dave

 

[SmithDoor]

Never used any but it would be fun to learn how

Maybe most do not know what radio compass or E6B
I think there would be more respons


E6B is a aircraft Dead Reckoning computer. It would with ground speed direction to point the aircraft with cross wind and more

The radio compass was for per-runner to GPS . Basically it points to radio station on a given frequency. Now few did talk the one for ships by different name.

OR I could toldly wrong again

What do you think ?

Dave