<P> The American ship SS Savannah first crossed the Atlantic Ocean , although most of the voyage was actually made under sail . The first ship to make the transatlantic trip substantially under steam power may have been the British - built Dutch - owned Curaçao , a wooden 438 ton vessel built in Dover and powered by two 50 hp engines , which crossed from Hellevoetsluis , near Rotterdam on 26 April 1827 to Paramaribo , Surinam on 24 May , spending 11 days under steam on the way out and more on the return . Another claimant is the Canadian ship SS Royal William in 1833 . </P>
<P> The American ship SS Savannah first crossed the Atlantic Ocean , although most of the voyage was actually made under sail . The first ship to make the transatlantic trip substantially under steam power may have been the British - built Dutch - owned Curaçao , a wooden 438 ton vessel built in Dover and powered by two 50 hp engines , which crossed from Hellevoetsluis , near Rotterdam on 26 April 1827 to Paramaribo , Surinam on 24 May , spending 11 days under steam on the way out and more on the return . Another claimant is the Canadian ship SS Royal William in 1833 . </P>
when did the first steamship crossed the atlantic
when did the first steamship crossed the atlantic
26 April 1827
26 April 1827