[BillM]

I have always carried a handheld GPS when I flew since they were made available.

It's awfully nice to have something that the aircraft and avionics designer don't know about!

Having said that, I hope they at least had a standby horizon!

[USNBandit]

There is some coating on the canopy of newer tactical aircraft that doesn't allow the use of hand held GPS units.

I used to use one all the time flying F-14A's because our INS was so bad.