Trials tested the SRV’s ability to perform various operations, including deep dives, navigation, and mating with a target. Nine FET personnel assisted in-country commissioning, and testing took two months to complete.
The sea trials followed a commissioning period, and factory acceptance tests took place at FET’s test tank in the UK.
The SRV is divided into two sections: a pilot command module and a rescue chamber. The SRV can rescue 17 people at a time and operate at depths up to 600m. It can attach to submarines at angles over 40 degrees.
Shephard’s Defence Insight lists the Vietnamese Navy as operating six Russian-supplied improved Kilo class submarines.