[lmailbvmbipfwedu]

I wonder what a magnetic survey would bring out. It seems to me that by hanging an magnetometer on a UAV and flying a regular grid pattern these thing would pop out like the new man at a nudist colony. Then there is gravity, LADAR, and other remote sensing techniques......

[El Gato]

It seems to me that by hanging an magnetometer on a UAV and flying a regular grid pattern these thing would pop out like the new man at a nudist colony.

Just wistle up a few Navy P-3s or SH-60s, they come equiped with MAD gear. S-3s used to have them, but they no longer perform the anti submarine mission, and the equipment has been deleted.

[SC Swamp Fox]

Every Navy sub-hunting P-3, S-3 and SH-60 has a magnetic anomoly detection (MAD) system. Unless technology has changed drastically in the last 10 years they would have to fly almost right over it at relatively low altitude to pick it up. If it is mostly aluminum, it would be easy to miss.