The Reverse Engineered I-400-Class Submarine Is The Only Navel Vessel Summer Island Has

== An Ancient Japanese Submarine ==
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== The Original Variants of The I-400 Were Nuclear Powered ==
The Los Santos Naval Port Has Been Building I-400 Submarines Since The World Wars These Variants of The I-400 Submarines Use Stirling Engines Manufactured By Benefactor Elysian Island Is Also The Vehicle Assembly Building For The Yandere Space Program With It's Main Launch Area Being The Voodoo Place The I-400 Submarines Built By The Yandere Space Program Are Designed To Utilize Stargates To Bypass Atmospheric Entry And Reentry By Utilizing Supergates Located In The Oceans of Terrestrial Planets These I-400 Variants Also Utilize Naturally Occurring Portals For Intergalactic Travel Via It's Yandere Engine 
== The Yandere Engine ==
The Yandere Engine Named After Yandere-Chan Is A Rift Engine That Makes Use of Naturally Occurring Planer Portals For Intergalactic Travel Summer Island Being Located In The Bermuda Triangle Has Naturally Occurring Planer Portals That Are Utilized By The Incels Whom Inhabit The Island For Intergalactic Travel Portals Naturally Occur As Rifts Between The Spectral And Material Realms The Yandere Engine Makes Use of These Portals To Facilitate Teleportation Either By Motor Vehicle or Stargate These Locations Where Matter And Antimatter Merge Are Called X-Points These X-Points Facilitate Intergalactic Travel Via The Yandere Engine 
== X-Points ==
The Bermuda Triangle Is An X-Point That Facilitates Portal Travel Across Galaxies By Means of The Yandere Engine Most of Summer Island's Military Vehicles Are Equipped With A Yandere Engine X-Points Are Matter Antimatter Merges Between The Spectral Realm And Material Realm This Facilitates Covert Colonization of Outer Space Even NASA Admitted That X-Points Exist But Never Elaborated Further About It The Exact Science Behind X-Points Is Not Well Known But For The Incels Has Facilitated Intergalactic Colonization For The Last 194 Years As Mortals We Can Only Travel To Material Realms Spectral Realms Are Marked As Y-Points Other Material Realms And Locations Within Those Material Realms Are Marked As X-Points