Royal Navy Soldiers Having Fun with Jet Packs Apparently these jets can go up to 300 km/h. Facebook Prev Article Next Article Military Checkout these cool gadgets... Related Posts These Guys Built an Amazing Weapon – 250-Pound, 27,000 Joule Electric Railgun Laser Weapon System Can Shoot Down Drones in 2-Seconds Open Source Machine Printing Real Guns at Home Miniaturize a Tank – MAARS Robot Mini Sponges Could Save Lives on the Battlefield Autonomous killer drones – Fictional but not really…