Osprey....2100 Nautical Mile. Range....with just one in-flight refuel?
"The US Marine Corps are preparing to complete the first transatlantic flight of a tilt-rotor aircraft in July 2006, after a successful practice flight of the MV-22 Osprey in June 2006. The Marine Tiltor Operational Test and Evaluation Squadron will fly two MV-22 Ospreys along with two KC-130J tanker aircraft for refueling from Goose Bay, Newfoundland to the UK in mid-July 2006. The aircraft will be turned over to manufacturer BellBoeing for participation in the Royal International Air Tattoo and Farnborough air shows to be held in July. One of the key performance parameters identified by the marine corps for the MV-22 is the ability for the aircraft to fly 2,100 n miles with only one refilling. The primary purpose of the transatlantic flight in July is to practice co-ordinating the MV-22 aircraft with the tankers and not to test an already proven ability of the aircraft to go the distance on one refueling.".
Does it have the ability to carry internal Aux Tanks now?
Certainly under wing tanks could pose an engineering design problem.
The Valor design cures that problem by its new design.