Sending the smoke down 1 m cost 7 Pa of draft — Franklin's stove and the buoyancy budget
·8 min read
One metre of down-leg removes 6.16 Pa and the longer chimney gives back less, 38.32 Pa instead of 39.15. Net draft falls from 44.72 Pa to 37.72 Pa.
The Weight Sits on Top and She Still Rights Herself — Metacentric Height and the Free Surface Effect
·8 min read
Capsizing is not decided by whether the centre of gravity sits above the buoyancy centre. The second moment of the waterplane, through GM, decides it.