Senior helpers

.....sorry, the one with the long shaggy white hair is actually a woman [of sorts] & she lets the others know it!
I understand 40+20 = 60, however this allows for the paddleshaft to be
45 mm up from the steam plant base...

...engine & steam plant to be higher & in full view
Yes certainly of concern is the increased C of G, but I can only check this when the complete steam plant is down in the hull......and lots of splashes in the bath
Derek