The Submersible Nuclear Ramjet: Part Nuclear Bomber, Part Submarine The Submersible Nuclear Ramjet: Part Nuclear Bomber, Part Submarine (And Moving at Mach 4) Kris Osborn · December 5, 2018 Please leave this field emptyStay Updated with Warrior Maven Subscribe for daily military news and updates delivered straight to your inbox. We don’t spam! Read our privacy policy for more info. Check your inbox or spam folder to confirm your subscription.