The Q1400 Trenching System has the capability to perform high quality jet trenching in soils of up to 100KPA and mechanical chain cutting of soils of up to 250KPA, the system is capable of free flying in jetting mode and operating in water depths of up to 3000m.
The Q1400 Trenching System consists of a “common trenching module” and separate tracked “jetting and mechanical cutting skids” with a customized launch and recovery system (LARS) rated to Lloyds sea state 6; and a unique deck-transfer skidding system to enable mode changes safely at sea without the requirement of craneage.
https://www.youtube.com/watch?v=cFxlwWPm4f0
[mappress] Subsea World News Staff, March 11 , 2013