Boeing P-8 Poseidon – Cost: $201.4 Million

Believe it or not, the military patrol aircraft Boeing P-8 Poseidon has its roots from the Boeing 737. Yes, the commercial plane that airline companies like United Airlines also use. The P-8 Poseidon was meant to replace the Navy’s P-3 Orion fleet and take its spot as the force’s go-to anti-submarine aircraft.

True to its namesake’s reputation, the P-8 Poseidon has the ability to wreak havoc upon enemy watercraft. It has an assortment of torpedoes, bombs, and cruise missiles on board. It can deploy these weapons while traveling at an airspeed of 490 knots.