Hey Art, did you guys have a drift meter? Curious.

Navy P2Vs did in 50s -- along with Loran, radar, DR, celestial, and a few other
little helpers. Don't know about P3s, but I suspect they do. Handy. Don't
forget you can measure your ground speed with the things as well as drift.

Of course the navy tends to fly over water more than common sense should allow.

Quent

Quent