Spek kotkas on tavaliselt kasutatav tavapärane varrata kasutatav kotkas, mida leidub laialdaselt kaubalaevanduse ja reisilaevade turul. Selle nutikas disain teeb selle ideaalseks valikuks kotkakarbi jaoks, tagades sujuva ühenduse kotkaga ja laeva eesosa vahel.
Selle täiendavalt tõestatud töökindlus teeb Spek kotkast laevale atraktiivseks valikuks.

| Nominiaalne kaalukg |
Mõõtmed (mm) |
Nominiaalne kaalukg |
Mõõdud (mm) |
| A |
B |
C |
D |
F |
A |
B |
C |
D |
F |
| 100 |
672 |
373 |
112 |
515 |
250 |
4320 |
2520 |
1400 |
413 |
1926 |
4917 |
| 150 |
770 |
428 |
128 |
590 |
290 |
4590 |
2520 |
1400 |
413 |
1926 |
951 |
| 180 |
846 |
470 |
140 |
640 |
300 |
4890 |
2520 |
1400 |
413 |
1926 |
954 |
| 240 |
900 |
500 |
150 |
690 |
358 |
5250 |
2610 |
1450 |
414 |
2000 |
964 |
| 300 |
990 |
550 |
166 |
760 |
398 |
5610 |
2610 |
1450 |
414 |
2000 |
981 |
| 360 |
1065 |
600 |
180 |
828 |
411 |
6000 |
2700 |
1500 |
446 |
2060 |
1006 |
| 420 |
1080 |
600 |
180 |
828 |
431 |
6450 |
2700 |
1500 |
446 |
2060 |
1028 |
| 500 |
1170 |
650 |
196 |
900 |
450 |
6900 |
2790 |
1550 |
456 |
2138 |
1034 |
| 570 |
1170 |
650 |
196 |
900 |
475 |
7350 |
2790 |
1550 |
456 |
2138 |
1062 |
| 660 |
1260 |
700 |
210 |
962 |
486 |
7800 |
2920 |
1550 |
456 |
2138 |
1091 |
| 780 |
1355 |
750 |
225 |
1032 |
519 |
8300 |
3060 |
1700 |
510 |
2332 |
1126 |
| 900 |
1440 |
800 |
240 |
1100 |
547 |
8700 |
3060 |
1700 |
510 |
2332 |
1156 |
| 1020 |
1530 |
850 |
252 |
1170 |
573 |
9300 |
3060 |
1700 |
510 |
2332 |
1169 |
| 1140 |
1620 |
900 |
268 |
1240 |
591 |
9900 |
3160 |
1700 |
510 |
2332 |
1188 |
| 1290 |
1710 |
900 |
268 |
1240 |
620 |
10500 |
3190 |
1770 |
531 |
2440 |
1188 |
| 1440 |
1710 |
950 |
279 |
1300 |
640 |
11100 |
3290 |
1770 |
531 |
2440 |
1212 |
| 1590 |
1710 |
950 |
279 |
1300 |
671 |
11700 |
3390 |
1770 |
531 |
2440 |
1237 |
| 1740 |
1800 |
1000 |
300 |
1378 |
689 |
12300 |
3440 |
1910 |
573 |
2632 |
1279 |
| 1920 |
1850 |
1050 |
312 |
1454 |
704 |
12900 |
3440 |
1910 |
573 |
2632 |
1279 |
| 2100 |
1890 |
1050 |
312 |
1454 |
717 |
13500 |
3440 |
1910 |
573 |
2632 |
1316 |
| 2280 |
2010 |
1050 |
312 |
1454 |
736 |
14100 |
3440 |
1910 |
573 |
2632 |
1353 |
| 2460 |
2010 |
1100 |
324 |
1514 |
764 |
14700 |
3690 |
2050 |
615 |
2824 |
1369 |
| 2640 |
2070 |
1150 |
352 |
1584 |
794 |
15400 |
3690 |
2050 |
615 |
2824 |
1369 |
| 2850 |
2070 |
1150 |
352 |
1584 |
804 |
16100 |
3690 |
2050 |
615 |
2824 |
1387 |
| 3060 |
2160 |
1200 |
360 |
1650 |
820 |
16900 |
3820 |
2120 |
636 |
2922 |
1415 |
| 3300 |
2155 |
1200 |
360 |
1650 |
834 |
17800 |
3950 |
2120 |
636 |
2922 |
1431 |
| 3540 |
2350 |
1200 |
360 |
1650 |
834 |
18800 |
3950 |
2190 |
657 |
3018 |
1461 |
| 3780 |
2430 |
1350 |
393 |
1850 |
880 |
20000 |
4070 |
2190 |
657 |
3018 |
1493 |
| 4050 |
2430 |
1350 |
393 |
1850 |
917 |
26000 |
4250 |
2360 |
716 |
3256 |
1618 |