In fig .3-8, for example, it will be seen that the cruiser has four propellers, two engine rooms and two boiler rooms; the forward boiler room and engine room form an isolated group driving the outer shafts, while the after group drives the inner shafts .
Umzekelo, kwisazobe 3-8, kuyabonakala ukuba inqanawa enesantya inezibalekisi ezine, amagumbi amabini eenjini namagumbi amabini ezibilisi; igumbi lenjini kunye nelesibilisi angaphambili anza iqela elizimeleyo elilawula imigodi yangaphandle, ngeli lixa iqela lamagumbi angasemva lilawula imigodi yangaphakathi.