What I keep forgetting, to mention and remember, is that the Meerkat and Husky, although very similar, are two distinctly different vehicles. The lighter Meerkat detects the mines, the Husky tests the route after the mines have been lifted. The Husky can also detect mines, but is larger and heavier than the Meerkat. The trailer system behind the Husky is known as a Duisendpoot, or Millipede in English.
After doing some searching I have come up with the following:
The Meerkat and Husky together are known as the Chubby, Rapid Route and Area Mine Neutralisation System (RRAMNS) and apart from being used by the US forces, it is also under field evaluation by the Australians. See:
http://www.dsto.defence.gov.au/corporate/publicity/media/mr2901.htmlAlso came across this site
http://www.wood.army.mil/TSM/gstamids.htm, which seems to suggest that the US Military has been busy with these concepts for quite some time.
Another interesting article can be found here:
http://www.defendamerica.mil/articles/nov2004/a110404e.htmlAs to the actually operational usage, the following quote from Global defence
http://www.global-defence.com/1997/RSDChubby.html does an excellent job:
“The operational mine clearance set comprises a mine detection vehicle called the Meerkat that sweeps ahead of a convoy at a speed of up to 35km/h, and can detect and mark locations of potential land-mines for normal sapper clearance. The second vehicle known as the Husky because of its sledge-towing prowess, also is fitted with liftable mine-detector pans, but also tows the two loaded Duisendpoot trailer mine-exploding sets.
Normally, the Meerkat because it travels at speed will detect but not explode a mine. After detection, the vehicle is backed up and using metal-detection pans, accurately pin-points the mine location and drops a marker.
Apart from the South-African designed detection system being self-nulling, it is so sensitive it can distinguish between a potential mine and an old beer or coke can. If the Meerkat locates a mine a warning signal is transmitted to the Husky automatically, instructing its driver to halt. If a mine is not detected by the Meerkat, it is likely that the Husky will. In this event, normal mine-removal techniques again are used. In the unlikely event that both vehicles miss the mine, it will be detonated by the high ground pressure exerted by the Duisendpoot.
All vehicles and trailers are designed with proven South African wheel-replacement kits. If any units detonate a mine, the blast will pass the driver's cab harmlessly, but may cause a wheel to be blown off. A follow-up mine-protected Samil army truck and trailer carries a full repair kit, including spare-wheel modules that are designed to be replaced within 30 minutes. Compared with human lives, these wheel modules are cheap and all sensitive electronics are located within the blast-protected cab. In operational use, a Chubby can cover up to 200km during daylight in Africa on mined roads. The alternators of all vehicles are switched off when in the sweep mode to avoid interference, and this means battery recharging or replacement, every six hours.”
From what I saw of demonstrations and such, of the clearance of mines in conjunction with these vehicles, the Husky and Millipede offers the Sapper/Engineer a physical walkway to the detected mine. Also during lifting, the mine is usually extracted from the ground by actually pulling it from the ground with a rope/hook combination (in case of booby-traps), for this the Husky provides cover for the Sapper against an explosion.