All Submarine Types Explained
From massive nuclear submarines to compact tourist subs — there are surprisingly many different types of submarines. Here's a comprehensive overview of every category.
Military Submarines
Nuclear-powered (SSN/SSBN) and conventional diesel-electric submarines for defense and deterrence. The largest can exceed 170 meters in length and remain submerged for months.
Up to 600m+
30-150 personnel
Ohio Class (USA)
Research Submarines
Specialized deep-sea submersibles for scientific expeditions. They reach extreme depths and are equipped with sensors, manipulator arms, and cameras.
Up to 11,000m
2-5 persons
Alvin (USA, 4,500m)
Tourist Submarines
Comfortable passenger submarines for underwater sightseeing. Large panoramic windows provide breathtaking views of coral reefs and marine life.
30-100m
20-64 passengers
Atlantis Submarines
Private Luxury Submarines
Personal submersibles for yacht owners and adventurers. From compact two-seaters to luxurious underwater yachts with sleeping quarters.
100-1,000m
2-12 persons
Triton 3300/3
Unmanned Underwater Vehicles (UUV)
Autonomous and remotely operated underwater drones for surveillance, mine clearing, surveying, and research. A rapidly growing sector of underwater technology.
Up to 6,000m
Unmanned
Orca XLUUV (Boeing)
Historic Submarines
Pioneer submersibles and World War-era submarines. Many are now museum exhibits telling the dramatic story of underwater warfare.
Up to 250m
1-60 persons
USS Nautilus (first nuclear sub)
Which Submarine Type Is Right for You?
Whether you're looking for a submarine tour, fascinated by military submarine technology, or dreaming of owning a personal submersible — the world of submarines is more diverse than most people realize.
For tourists and beginners, submarine tours are offered worldwide and are a fantastic introduction. Scale model enthusiasts will find a huge selection of detailed replicas. And for those who want to go deep, manufacturers like Triton Submarines offer custom-built submersibles.