Hence , America has twice the displacement of the retired Iwo Jima - class amphibious assault ships .
The MV - 22 is significantly larger than the largest helicopters used by the U.S. Marine Corps and the U.S. Navy in the past .
America has twice the displacement of the retired Iwo Jima - class amphibious assault ships .
The MV - 22 is significantly larger than the largest helicopters used by the U.S. Marine Corps and the U.S. Navy in the past .