"There has not been a single aircraft designed for land and adapted for sea that has been successful."
In Britain:
Hawker Nimrod and Osprey?
Hornet?
Vampire?
Venom?
Sea Hawk (P.1140)?
Sea Vixen (DH110)?
Harrier?
Elsewhere there are the Su-27K (Su-33) and MiG-29K, the Etendard, Super Etendard and Rafale........
But apart from those, and those I have omitted: "There has not been a single aircraft designed for land and adapted for sea that has been successful."