Well if you were to spend a day listening to JFK's Tower feed on-line you'd know that they do get clearances with FL390 in them as expected altitude after 10 mins. Also, Jetblue tends to have several face-in's face-out's from JFK. There's an early morning push, which is ahead of the main JFK push, so unless there's a problem they usually get a fast taxi out. If departures are off 31L, they will usually request and get an intersection departure from K, KK or KA. They always get that on their 10-10.30 am push (which is JetBlue only) and their push just after lunch about 1.30-2.00pm (again JetBlue seems to be pretty much the only aircraft around at these times) Their arrival runs into these out's are pretty easy, because 13L is their side of JFK, as is 31R, and their terminal is just about the middle of that runway, so very short taxi to ramp times. JetBlue's other trick when on a departure push running on the 13's is to request 13L for departure instead of 13R, that saves a good 5 mins or more on taxi time. The only time that request gets refused is when their evening push coincides with the heavy departure push to Europe, and the evening departure internally. Listen to JFK between 6-8pm and you'll se what I mean - they have to open up a second ground control frequency (one for sequencing, and one for metering and notifying ready to taxi). Also JetBlue very carefully schedules their multiple Florida departures in the push to be 5 mins apart from each other - if they push back on time off the gate, then they will gurantee automatic route spacing is correct at the runway, and block the WAVEY departure gate to all other JFK traffic for a good 30 minutes (4 or 5 slots). They get no particular preferntial treatment from the controllers, but you must remember an airline's pilots always know 1. their home base airport taxiways very well; 2. their home base tower controller's and 3. the regular procedures and requests likely to be granted at the airport. If you know those things it all helps to save time, and speed up the operation.
There is one final thing in their favour, A320s are pretty nippy off the ground, so when it is busy and the controller is doing sequencing for departure the A320 will take a little preference over certain other aircraft types, cos over a period you can release more aircraft. Think about it - you have A340, 3 A320's, an RJ, a 767 and a 757 on the ground. To get separation after departure you need to leave 3 mins after the A340, cos it's a slow pain in the a** (to quote a few controllers and pilots). You need 2.5 mins after the 767 and the same for the 757. 1 minute only if going different routes for RJ and A320s. So, what will you do.....
Let's see: the order they called in A340, 767, A320, 757, A320, RJ, A320, that'll take 11 minutes before you are clear of them. But try this: RJ, A320, A320, A320, 757, 767, A340 :
10 minutes. Do that over an hour, and you get 6 more planes in the air!!!!!!
I guess what I'm saying is JetBlue is an efficient operation, pick the right departure slots from JFK, and you can get out without queuing for the runway. JFK is not constantly busy like LGA, and it is more flexible when not busy due to its runway layout.
I'm not too sure about this Flight Level info above - isn't everyone on RVSM these days, I know Europe is?
Moscow to London on a 767, asked the capt. what our cruise was and he said FL360!!!!!!
Does that answer everyone's questions?