Or at best something like, due traffic at F140 request best rate of climb through F150
But what does best rate rate mean? It's not inconceivable for pilots to hear that and then climb at the rate that is best for that aircraft in terms of fuel consumption etc etc. When training at the college I was taught this by someone who had come from TC who was caught out by saying 'best rate' to an A340 out of egll. Result? Climbed like a brick because that was the best rate in terms of economy of for the aircraft. Expedite means just that. Expedite. ie Get your ass in gear! Furthermore, using the term 'request' would be a big no-no for me. You requesting it doesn't mean the pilot has to comply. What happens if he says no?
