
Outside... Deep cold and darkness. We are feet wet over the Pacific, six miles below... Too heavy for 39,000 feet; still one hour of fuel burn away. We need to get up there, though, to reduce pounds per hour to our engines or we are going to be arriving at the nest with minimum fuel, something management says, "Shows good airmanship", but causes a geometric increase in the
gray hair factor for this Captain. Usually, on this leg returning from Anchorage, we get help from the winds aloft, but not tonight... Light crosswinds less than 50 mph (43 knots).
The airspeed indicator shows a 34 mph (30 knots) envelope between the overspeed and underspeed zones. That is my personal minimum... 34 mph. A rough rule of thumb is that you lose 11 mph per thousand feet of altitude. If we climb to 39,000 feet, we would have a 12 mph envelope, or... Not enough. (For a detailed description of this phenomenon, see
Aviatrix, a Canadian pilot who is, shall we say, wickedly intelligent and has written a series of good articles [coffin corner, stall speed, speed of sound] on this subject.)
The air mass is, thankfully, smooth. Number one flight attendant, Nita, told me that 124 passengers, a full load for the A319, are asleep or only semi-conscience in the back. Part of that contingent is a small group of Marine riflemen, having been on leave in Alaska, returning to their units. I spoke to them briefly in the terminal. They were looking high and tight, dressed in civvies, with positive attitudes and big grins. I asked Nita if we could stick a few of them in First Class, but, of course, it was full. So, I told her not to take their money and to give me the bill after the flight.
Inside the flight deck, it is toasty and relatively quiet. Not much radio traffic until we get closer to Vancouver. The only sounds are the rushing slipstream, a hydraulic noise every once in awhile, an occasional electrical relay opening or closing, and of course, the ever present sound of the cooling fans in the Star Trek pit, a.k.a., the E & E (electrics and electronics) bay. There is no engine noise at all; they are too far behind the flight deck.
It is the darkest part of the night...