| Vessel | Dimensions | Displacement | Machinery | Speed |
|---|---|---|---|---|
| TEIYU MARU (ex-CARIGNANO) | 400' x 52.4' x 28.4 | 5,359-tons | Triple expansion steam engine, 490 n.h.p., 1 shaft. | 12.5 knots |
| IKUTAGAWA MARU (ex-RAMB II) | 388.2' x 49.9' x 24.3' |
3,677-tons | diesel engines, 2 shafts. | 18.5 knots |
| ATAKA MARU (ex-ADA) | 413.1' x 52.4' x 25.5' | 5,248-tons | Triple expansion steam engine, 520 n.h.p., 1 shaft. | 10 knots |
| AOKI MARU (ex-AMBA ALAGI ) | 350.7' (lpp) x 50'.20 x ?' | 3,722-tons | Triple expansion steam engine, 1 shaft. | 10.5 knots |
| ENKYO MARU (ex-ENDERTA ) | 280.4' (lpp) x 42' x ?' | 2,278 ton-tons | Steam engine, 1 shaft. | 10 knots |
| HARYU MARU (ex-GRANATIERE PADULA) | 355' (bp) x 50' x ?' | 3,871-tons | Triple expansion steam engine, 1 shaft. | 10 knots |
| KONEI MARU (ex-FURIERE CONSOLINI) | 251' x 43.8' x 18.8' | 1,949-tons | Triple expansion steam engine, 1 shaft. | 9 knots |
| MARUKO MARU (ex-MARCO POLO) | 297.5' x 53.6' x 11.7' | 3,063-tons | Triple expansion steam engine, 332 n.h.p., 1 shaft. | 10 knots |
