Original: The books were : Warship ( published in 1973 ) HMS Hero ( published in 1976 ) Holt RN ( published in 1977 ) Board game Series creator Ian Mackintosh also devised a version of the board game Battleships , based on his experience of modern naval tactics and called Warship after the series .
Simplified: The books were : Warship ( published in 1973 ) ; HMS Hero ( published in 1976 ) ; and Holt RN ( published in 1977 ) .