Can't think of anythink heavier but there must have been bigger aircraft. Wasn't the Vigilante single engined for example?
Jack Broughton's book Thud Ridge describes flying the 105 beautifully. Nothing faster at low level, could haul an unbelievable load, no turn rate worth a damn, had a real Vulcan cannon up front, vulnerable hydraulic system and a seat which was likely to break your back if used in anger. Loved to have seen one in the flesh. What a great looking bird.