Things that go bump in the dark
I’ve never been an aficionado of night flying. You can stumble into weather you would normally avoid in the daytime and it’s often more difficult to do things that are routine during the day. Additionally, you always hear noises that never seem to occur during daylight. For instance, air-to-air refueling (AAR), which is challenging in the daytime, requires flying at 300 knots while close to another aircraft filled with fuel, and they intend to “pass some gas” to you—in the dark!