Some operational C-130s still have a little sextant port for shooting a star but only a few of the old guys would still even know how it works.
The GPS most of them use is almost as old, a $20 Garmin handheld could navigate circles around it.
The GPS most of them use is almost as old, a $20 Garmin handheld could navigate circles around it.
Probably not, as it will refuse to work at both the altitude and speed of an airplane ;-)
EDIT: I stand corrected. Neither the speed nor the altitude will be a problem.
Well sub in the garmin with one of the other low cost consumer units that work at those altitude and speeds then!
It's also trivial to obtain unrestricted GPS devices.