Jack Windsor Lewis has mentioned (here) the frequently different pronunciation in BE of the /t/ in hospital and orbital. I wonder if part of the reason for the /t/ of hospital becoming voiced in British English, while that in orbital does not (I know the grammar of that is a bit odd, but I’m sure you know what I mean), is a rhythmic difference. There is also a grammatical difference, of course, but a third rhythmic pattern occurs in digital, and digital and orbital have the same grammatical structure:

final

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