Reply To: Air Navigation

[manxcat]

TO: JDavHouston
Sorry, I don’t understand your comments. We’re talking about the bubble-octant of the 1930s ’40s… are you saying this is NOT an artificial horizon device???? I certainly thought it was! Also, your discussion about the effects of gravity seem to apply to a magnetic compass and not any form of a sextant–unless I am very mistaken.