[time-nuts] "The GPS navigation is the weakest point,"

[Jim Lux]

On 12/15/11 2:17 PM, Charles P. Steinmetz wrote:
> John wrote:
>
>> Iran hijacked US drone, claims Iranian engineer Tells Christian Science
>> Monitor that CIA's spy aircraft was 'spoofed' into landing in enemy
>> territory instead of its home base in Afghanistan
>> Iran guided the CIA's "lost" stealth drone to an intact landing inside
>> hostile territory by exploiting a navigational weakness long-known to the
>> US military, according to an Iranian engineer now working on the captured
>> drone's systems inside Iran.
>
> -- snip --
>
> If the report in the article is true, we deserve to lose drones to
> countries like Iran for not having the sense to install an inertial
> guidance system to back up and "reality check" the GPS. (Omitting IGS
> would be such a major gaffe that it calls into question the veracity of
> the Iranian claims. Were we really that stupid, or that cheap?)
>

Especially since you need the IMU to run the flight controls to keep the 
darn thing upright and flying straight.