Originally Posted by
Bell_ringer
Doesn't make much sense how two aircraft leaving the same base and with a converging routing wouldn't be aware of the other.
At Wycombe, the fixed-wing and helicopter operators are in differing buildings. You not only don't see/talk to each other before departing, but may fly from the airfield as a helicopter pilot for years and never even meet a fixed-wing pilot.
Quite possible neither pilot had any fixed route/destination and were just out for a local flight.