Dr. Moore, thanks for the suggestion. Don't have time to pursue it further right now, but it looks as if Sky West at the time did have Piper Navajos (PNV) in their fleet and in service to southern Utah. PNV are the twin piston engine puddle jumpers mentioned up-thread, similar to the Cessna 402s.Dr Moore wrote: ↑Wed Mar 31, 2021 7:38 pmCheck the links in my post above -- I think you can see the aircraft flown in the old fleets. Skywest's website also has a neat historical timeline. For the year 1976, that timeline shows a photo of several of its planes.DrW wrote: ↑Wed Mar 31, 2021 7:34 pmBefore speculating much further, I would suggest we try to find out what kind of equipment Sky West was flying on the SLC to St. George routes back then. I was flying Air West in the mid-1970s and they were using mainly turbo props and pure jets on the routes from Washington State to SLC. Turbo props are gas turbine engines that have the same basic internals as turbojets but produce thrust by driving a prop connected via a gear box to the turbine shaft.
Will be back to this later this evening. But at least that part seems to fit his story.
Well done.