In fact, last practices on board 25DM were performed in march 1988, S2 trackers of 2nda Escuadrilla Antisubmarina, according Jorge F. Nunez Padin.
MG really had a Mc Taggert Scott C3 steam cat, and 25DM a BS4 (Mitchell Brown). To my knowledge, it seams to be the sole steam catapult made by Mc Taggert wich is, as I know, rather a specialist of landing systems (arrest wires i.e)?

Correct, though McTaggert Scott also make aircraft lifts for aircraft carriers including the ‘scissors’ lifts fitted to the three Invincible class.