 Engineers from AG Weser, "UB-45"s German builder, inspected the hulk and determined that repair of the wreck was feasible.A restoration of the submarine to operating condition, as either a training vessel or a military, would cost 21 million leva (about US$250,000 in 1936 dollars), significantly less than the 56 to 65 million leva ($680,000 to $790,000) that a comparable new submarine would cost.Ultimately, the Bulgarian Navy opted to order new submarines from Germany rather than repair "UB-45".