Hold the W for Arthur M. Anderson's horn. Hold the Q Edmund Fitzgerald horn. Hold E for Arthur B. Homer's horn. Hold the R for Aquitania's Horn. Hold the T for Olympic's Horn. Hold Y for Mauretania's Horn. Hold U for Carpathia's Horn. Hold the I for Lusitania's Horn. Hold O for Titanic's Horn. Hold P for Britannic's Horn. In this project, you should be able to do horn codes. Short Blast - Lasts about one second. Prolonged Blast - Lasts from four to six seconds. Captain's Salute: One prolonged and two short blasts. Master Salute: Three prolonged and two short blasts. One Short Blast: Means "I intend to leave you on MY port side". One Prolonged Blast: This means you are leaving a dock or departing your ship. Two Short Blasts: This means "I intend to leave you on MY starboard side". Three Short Blasts: This means you are operating in astern propulsion, for example backing away from a dock. One Prolonged Blast + Three Short Blasts: This is technically two different signals in succession. One prolonged blast indicates you arunderwayng underway, and three short blasts indicate you are backing up. Five Short Blasts: This is the DANGER signal.
Credit to @TexasAndPacificRW610 and @Julianthe1400xxGWR and More.