Next message: Peter Fogg: "Re: Drum Sextants"
> I've also noticed that some Plath sextants don't include a little vernier
> scale for reading off tenths of minutes. But in practice, I find that this
> matters relatively little. I can read to 0.2 minutes (which is as good as it
> gets, in my practical experience) with or without the vernier scale.
If I recall correctly, Alex's SNO-T has no gradations for tenths on the
vernier section of the drum. Just a swing in magnifying glass. Placing a
value on the line between the limiting marks is up to the user.
Bill
