. ▁Initial ly , ▁Om ega ▁was ▁to ▁be ▁equ ipped ▁with ▁a ▁special ▁dies el ▁engine ▁to ▁power ▁the ▁sub marine ▁both ▁on ▁the ▁surface ▁and ▁sub mer ged , ▁but ▁the ▁failure ▁of ▁the ▁concept ▁on ▁the ▁French ▁sub marine ▁Z ▁forced ▁the ▁construct ors ▁to ▁install ▁a ▁steam ▁engine ▁and ▁an ▁electric ▁motor ▁instead . ▁ ▁Arg ona ute ▁had ▁a ▁sur fac ed ▁disp lacement ▁of ▁ ▁and ▁a ▁sub mer ged ▁disp lacement ▁of ▁. ▁Her ▁dimensions ▁were ▁ ▁long , ▁with ▁a ▁beam ▁of ▁ ▁and ▁a ▁dra ug ht ▁of ▁. ▁She ▁had ▁a ▁single ▁sh aft ▁power ed ▁by ▁one ▁triple ▁expansion ▁steam ▁engine ▁of ▁ ▁with ▁steam ▁from ▁one ▁bo iler ▁and ▁an ▁electric ▁motor ▁which ▁ ▁produced ▁ ▁for ▁sub mer ged ▁prop ulsion . ▁The ▁maximum ▁speed ▁was ▁ ▁on ▁the ▁surface ▁and ▁ ▁while ▁sub mer ged ▁with ▁a ▁sur fac ed ▁range ▁of ▁ ▁at ▁ ▁and ▁a ▁sub mer ged ▁range ▁of ▁ ▁at ▁. ▁Her ▁complement ▁was ▁ 2 2 ▁men . ▁ ▁The ▁sub marine ' s ▁arm ament ▁compr ised ▁two ▁ ▁bow ▁tor ped o ▁tub es , ▁two ▁ ▁Dr zew ieck i ▁drop ▁col lar ▁tor ped o ▁launch ers ▁and ▁two ▁tor ped o es ▁in ▁external ▁cr ad les . ▁ ▁Const ruction ▁and ▁career ▁Om ega ▁was ▁built ▁in ▁the ▁Ar sen al ▁de ▁Toul on . ▁She ▁was ▁laid ▁down ▁in ▁January ▁ 1 9 0 3 ▁and ▁was