Torpedo tubes, external mounts, or a UUV garage?

Should submarine-launched UUVs use torpedo tubes or an external hull-mounted system?

Either can work, but a dedicated garage or moon-pool arrangement may provide safer launch and recovery for larger mission-specific vehicles.

Torpedo-tube compatibility offers established handling paths, while external carriage avoids consuming weapon tubes but complicates access and recovery. A third option is a dedicated garage within the outer hull, drawing on trunk and access arrangements used for other large submarine payloads. The correct choice depends on UUV size and mission because greater endurance and sensor capacity rapidly enlarge the vehicle and its support requirements.