It’s that time of year when the Air Force prepares for the holiday season — Toys For Tots drives, shopping at the exchange, Operation Christmas Drop — and prepping Santa for Christmas Eve, of course. The Environmental Tectonics Corp., which makes training equipment for the Air Force, has put out its own version of “The Night Before Christmas” this year. The story begins with Santa buying aviation training equipment to prepare for his flight around the world — signing some contracts, training with NorPAC (the North Pole Air Center, for short), etc. Read through ETC’s story, and watch the simulated…