No, the Swordfish was the TSR2 - Torpedo, Spotter, Reconnaissance, having grown from the TSR1 design for an slightly earlier requirement. However these were both internal designations by Fairey rather than the Admiralty or Air Ministry.
The later TSR2 stood for Tactical Strike and Reconnaissance, Strike meaning nuclear, the 2 was for the Mach 2 target speed. Again this wouldn't be an official designation but they never got round to giving it one although something like Eagle S1 would have been likely for the initial batch.
Biting the hand that feeds IT
