V = Vertical
What is the difference between CV-22 and MV-22?
MV-22/CV-22 - Bell-Boeing V-22 Osprey | Info, Budget/Costs …
The CV-22 is designed to support missions of the U.S. Special Operations Command (USSOCOM). The MV-22 is designed to meet the amphibious/vertical assault needs of the U.S. Marine Corps (USMC), the strike rescue needs of the U.S. Navy and long-range special operations forces (SOF).