There'd been a transpolar air invasion of Canada, and I'd been sent to the front to check on service failures of a new lubricating oil for combat equipment.
"Time and Time Again"
Henry Beam Piper
There were two transpolar routes that passed within a few hundred miles of here, but no air transport he had ever seen made a noise like that.
"Anything You Can Do ..."
Gordon Randall Garrett
Sure, I thot at th' very last 'twas a foine big liner from the Orient and transpolar run, dropped down here from the hoigh livils!
"The Finding of Haldgren"
Charles Willard Diffin