Thank you, good posts all round. Most of our aircraft are equipped with external load speakers and if used would probably allow the pilot to communicate better with the refueling crew along with the visual queues. However if the refueling crew is not paying attention, there is only so much one can do from inside the cockpit.
Does anyone know of suppliers of automatic shut-off Jet A-1 refueling nozzles.
Besides moving to a closed circuit refueling system it would be the most practical way to minimize spills from lack of attention.
TGZ