This afternoon, the ramp temperature in southern Arizona was 50 Centigrade/122 Fahrenheit. The external air conditioning hose was blowing copious amounts of refrigerated air, but was unable to keep up with the sun's heat. The interior of the aircraft was warm and uncomfortable. So, as a result, the flight attendants were being bombarded with complaints from the passengers. No doubt, it is uncomfortable back there, but the rampers are the really hot ones. Those folks are working in
almost unbearable conditions, and not just hiding under the wing's shadow, either. They are throwing tons of bags and freight into the belly.
We used all the performance tricks to lift our weight off the hot runway. The V2500 engines operated at their maximum exhaust gas temperature of 635 degrees Centigrade until the co-pilot reduced thrust at 1,000 feet above the ground. We slowly increased our airspeed until the flaps could be raised and the cabin pressurization and cooling systems could be reactivated. In the back, the passengers were ringing the flight attendants about the heat. It reminded me of windchimes, but having the same musical note. Finally, we leveled at 35,000 feet. I glanced at the outside air temperature of minus 58 degrees Fahrenheit. That would be a temperature difference of 180 degrees, plus or minus a couple. Amazing! The cabin temperature, mercifully, was slowly decreasing.
Enroute to Chicago, we did the thunderstorm weave until Iowa airspace, then Chicago Center started spacing and slowing the arrivals for O'hare. The co-pilot and I tightened our belts and prepared for the challenges of a Chicago arrival. We landed on time, but arrived 15 minutes late at the gate, due to hundreds of airliners all trying to move on the same little strip of concrete.
Patience,
Captain, patience.
Thankfully, the outside air temperature at O'hare was only 78 degrees Fahrenheit. A large storm north of O'hare looked like it might slow departures, so I added another ton of extra fuel. A few years ago, at O'hare, we took a three hour delay on the taxiway in conditions identical to tonight's. We loaded up 139 passengers for Sin City, then pushed back from the gate. The tug driver cleared me to start #1. When I raised the start switch to begin the procedure, a flight attendant called the flight deck. A passenger said he was claustrophobic, and wanted off the aircraft. I told the tug driver to pull us back to the gate. Engine #1 was shut down and the jetway moved back to the aircraft. The passenger got off the aircraft and I did five minutes worth of gate return paperwork and cell phone calls to the company.
One more time, cleared to push back. I started #1 again, then we taxied into the O'hare melee.
The ground controller was giving rapid fire instructions, with little opportunity to readback. The co-pilot and I were having problems understanding his syntax, but we managed to find our way to the runway, without incident. It appeared that there would be little, if any delay for our westbound departure. We quickly started #2 engine, completed our checklists, warned the flight attendants; then following tower instructions, we moved onto the runway and the co-pilot advanced the thrust levers to the stops. The engines were much happier with 78 degree air. The exhaust gas temperatures stabilized 100 degrees Centigrade lower than the Arizona take-off.
The co-pilot banked toward the west, away from the storm north of the airport. After a bit of turbulence climbing through the lower clouds, we broke out into the sunset colored skies.
10:00 P.M./0500 Z
We have been cruising at 36,000 feet in smooth conditions for over an hour. The headwinds are light to none existent. We will be arriving early in Lost Wages. The stardome is gorgeous. The Milky Way and the Great Rift are clear and easy to see up here. The moon, although only half, is bright enough to illuminate the top of our wings. Little Midwestern towns are slipping under our nose, one after the other.
We are finishing day one of a four day trip.