For CAS and the Marham staish to fly together, the staish would have to have qualified as a rear-seat pilot with less than two years on the jet, which would be highly unusual for a full-time squadron flier regardless of previous experience, let alone someone who probably flies once per week tops and has no background on the jet. Either that, or CAS would have to be signed off to fly with a passenger in the boot. Both scenarios are highly unlikely.
Anyway, there’s no need to pontificate further, so to turn this back into a fact-based discussion, see here, taken from Tw@tter. Hint: that is not the Marham staish behind CAS.
