Have you considered a camera on your plane for some of your flight videos? I use one of these for most of my flight videos, attaching the camera to the plane with some Velcro. They're lightweight, have a small frontal profile, inexpensive, and take pretty decent video for something so cheap. Plus, with the low cost, I'm not worried about the financial hit if something happens to it (though, using one for over a year, and I've never had an issue).
Keychain Camera
Here's one of my in-flight videos taken with one:
Air Hooterville, Flight 2