Quote: (Originally Posted by
HMP)

I read an article about the Canadian navies SIVA, its semi closed isnt it? But it does use the same spheres.
The Royal Navy uses the MK16 currently and there are endless rumors of its replacement. I believe AP, Delta P and Divex all tendered for it.
Due to strict rules on decommissioned life support items, all the Mk16's will sadly be destroyed when they are retired.
Yes both sets are semi closed sets. CCDA is a NITROX set good to 40m and CUMA is a HEO2 set good to 81m