Summers Group Captain J K (2 results)

Hardcover. Condition: Good. No Jacket. pp.viii 57, illustrated with photographs and diagrams. Blue cloth with light rubbing to head and foot of spinr and corners and small dark spot on front. A good clean copy.

Hardcover. Condition: Very Good. Hardback in blue cloth boards, some shelf wear and fading to the bottom of the covers, otherwise in Very Good condition. Dustwrapper has some marking and a small nick in the spine, otherwise in Very Good condition, in a clear protective archival wrapper. First edition, Pp57 and pp8 of advertising, b&w illustrations and diagrams. Air navigation is defined as "the process of determining the geographic position and maintaining the desired direction of an aircraft relative to the surface of the earth." There are three types of navigation: Dead Reckoning Navigation, Visual Navigation, and Electronic Navigation.…