I did not say that the only Cunard ship to go through the Panama Canal was the QE2.I wrote that the QE2 was the only Cunard QUEEN to be able to go through the Panama Canal locks.The Queen Mary,Queen Elizabeth and QM2 are too wide and too long for the Panama Canal locks which are 110 feet wide and 1,000 feet long.Both the Queen Mary and Queen Elizabeth were about 118 feet wide and the QM2 is either 131 or 135 feet wide.Queen Mary is 1,018 feet long,Queen Elizabeth was 1,031 feet long and the QM2 is 1,132 feet long.So the QE2 at 105 feet wide and 963 feet long is the only Cunard Queen to be able to go through the Panama Canal locks which are 110 feet wide and 1,000 feet long.Whether any other Cunard Ship other than QE2, went through the Panama Canal,Well I don't know.