I didn't know that. Last time I flew I removed the Bic lighter from my pack. Do the security folks have a problem with ferrocerium rods on keyrings?

I carried both of my GPS receivers with me; I didn't use them in flight, no point other than being curious. I hadn't considered the VX-5 radio mentioned in the thread. That's a great idea. A simple compass would be a nice to have also.

Besides the exacto blade and fish hooks, what in the Ritter PSK would need to be removed?