Saunders Roe P192 Queen would have , if she had been built, with out rival.At 1,500000 lbs in weight would have put all comers to shame. with a 1000 passengersplus cargo and fuel without the need to put wheels under the hole affair, may have provedfar more profitable than its much more smaller land based equivalent.whereas land based aircraft are restricted by runways, no such limit are placed on their waterborne equivalents.