There was only **ONE** flying Bell 222 on the show... "76S aka 76 Sierra".
The non-flying, soundstage mock-up was the original prototype 222 (pre-certification) that was given to the studio by Bell after they'd finished with it. "88K aka 88 Kilo". That one was what you saw Hawke and Santini in the most (about 95% of the time). You'll see 88K pre-added studio mods in 1st Season episode "MIND OF THE MACHINE" (the one on the left in a box - hiding the reality of the airframe at that stage in early 1984 - that Dr Winchester 'flies')
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