Dear all,
The Z-Boat 1800 is the best reviewed USV on Geo-matching. Read some of the reviews here:
http://www.geo-matching.com/products/id2417-z-boat-1800.html
"The Z-boat has been a valuable tool when performing work within an "ideal" pond scenario where the boundaries can be observed and there are no shallow areas causing hang-ups or groundings – setbacks of any remote controlled operation. The boat has been dependable and procduces good soundings. We’ve had a few high-gain antenna breaks and required adjustments to the propeller angles, but the system has been fairly stable."
"I can say how pleased we are with the Z-Boat. I went out with a crew yesterday to survey 2000 feet of canal that was about 60 feet wide. Taking 50 foot cross sections it took us three hours to complete. We would have been lucky if a crew doing them conventionally in a boat completed that in two days. The boat is very easy to control and keep on line. Much easier than our 23’ Sea Ark. This was a very worthwhile investment."
http://www.geo-matching.com/products/id2417-z-boat-1800.html