T&T: ranking the electronic nav aids

[John Buckwalter]

> So ranking the electronic nav aids, which has been most responsible in 
> this reduction?
>
> Depth Sounder
> VHF Radio
> GPS/Chartplotter
> Hailer
> Weather Forecasting
> Autopilot
> Radar
>
>
You forgot the most important aid.  The basic modern chart.  Compare 
today's charts with one from 1950!
Based on satellite and GPS data there are not many unmarked places you 
can get in trouble today.

John Buckwalter