This can be helpful on double-enders because
the stern is pinched and the propellers and
rudders may not fit properly too far apart. At
the same time—particularly in deep-bodied,
heavy double-enders—the engines can be far-
ther apart near midships, which allows better
access to the machinery space.
Keep in mind the possibility of shafts that
are angled or offset in plan view. You may run
across them in practice, or they may help
solve some particularly difficult installation
problem. In most instances, however, shafts
parallel to the centerline are preferred.Chapter 2:Struts, Propeller Apertures, and Shaft Angle
Figure 2-14.
Different shaft
placements
compared on
twin-engine boats