Merchant

Abstract

Ageneralized criterion fQr measuring onomic effectiveness ， the total present worth of bOth invested c （ rsts and future retums was given as a extension of Benford ’ s pap 〔 ’ x （ ） ． A block diagram was constructed that quickly shows t 葺 e log 三 cal aspects of the process Qf oompar 三 ng ships of different types ， Sizes ， speeds and power plants in order to judge their relative merits from a Qommercial standpoint ． Numerical calculations were also 皿 ade for oi ［ tankers ranging from about 20 ， 000tons to ． 100 ， 000 tons in dead weight 12 knots to 21 knots in sea speed ．