Later in the month , the ship 's aircrew learned to spot mines from the air and were moderately successful .
Mines failed to detect the minefield that sank one French and two British predreadnoughts and damaged a British battlecruiser on 18 March .
Later in the month , the ship 's aircrew learned to spot mines from the air and were moderately successful , although they failed to detect the minefield that sank one French and two British predreadnoughts and damaged a British battlecruiser on 18 March .