Correct me if I'm wrong - but a Sukhoi SU-33 has a maximum take off weight of a little over 72,000 lbs and a reheat thrust of 2X 28,214 lbs. The SU-33 uses the STOBAR Russian carriers. A Rafale has maximum take off weight of 54,000 lbs and reheat thrust of 2 X 17,000 lbs. So why couldn't Rafales use Queen Elizabeth without catapults as STOBAR?