Services operated by Northwest Airways between Chicago and Twin Cities are described; coordination with rail services of Northern Pacific, Great Northern, and Chicago, Milwaukee, St. Paul, and Pacific railways and later with Pennsylvania, Baltimore and Ohio, and New York Central lines; Hamilton all-metal Wasp-powered cabin planes and Ford tri-motored Wasp planes used.
A million miles of safe airline operation
Aero Digest
Aero Digest ; 14 , n 4
1929
1 Fig.
Aufsatz (Zeitschrift)
Englisch
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Million-and-A-half miles' operation
Engineering Index Backfile | 1934
Engineering Index Backfile | 1933
|Million miles on creosote mixture
Engineering Index Backfile | 1940
|Million miles with motorway coaches
Engineering Index Backfile | 1961
|Two million Zephyr miles annually
Engineering Index Backfile | 1937