Stersmen or Steersmen: How To spell?
The word Stersmen is misspelled against Steersmen, which is plural of "Steersman"
Steersmen has double "ee" is mispronounced as "e"Remember double 'EE' in between the strings St & rsmen which should not be misspelled with single 'E'
Wrong Spelling:  St-e-rsmen  Correct Spelling:  St-ee-rsmen 
Explore spell check of Steersmen to spell without errors.