 Jachmann retired to Oldenburg with his family, though he returned to naval affairs in 1878 following the accidental sinking of during a training cruise.Jachmann used the incident to attack Stosch, first through anonymously published letters criticizing his training program, and then as part of a court martial that placed blame for the accident on Carl Ferdinand Batsch, Stosch's protege.Jachmann thereafter left the public eye until his death on 21 October 1887.