The HABETaS® system and its components are subject to an extensive development and test programme. The programme includes testing in simulators, in submarine escape training centres and in test rigs replicating the types of escape chambers installed onboard modern submarines. The test conditions cover the full depth range from very shallow escape runs to extremely deep runs. Testing is being carried out to cover the conditions from high supply pressures in the reservoirs down to runs at supply pressures just above ambient pressure, which simulate the escape of the very last survivor. The test programme, which started with unmanned testing before progressing towards manned tests is being instrumented, witnessed and documented by QinetiQ Alverstoke, the test institute having the greatest experience in sub-marine escape technology in the world. The highlights amongst the series of positive test results are: Maximum escape depth successfully simulated at 550 metres Minimum pressure difference between ambient pressure and pressure in gas supply at 3 bar Execution of manned escapes from a depth of 28.1 m in the UK Submarine Escape Training Tank (SETT)