This channel is Helpful for 2 Mates oral preperations, also All Mariners and Navigators globally present can surely add up or brush up their knowledge with these videos. All the Best my friends
just assume that, we have 0 trim and 0 heel with a certain water line. then someone ask what is the gz when ship heel 20 degree, how can you solve that withou calculations programs ? where is the point makes the ship heel 20 degree ? İs it center of gravity or center of buoyancy or center of first waterline intersect with KM line ? No one knows the answer ? Where is the first point where the ship heeled ? As a result, turning 20 degrees from the extreme end of the portside will be different from turning 20 degrees from point G.
19:21 is the MAX RATE OF DESCENT not minimum. It should not go down faster than 5m/s for the reason for it to remain as max time in Air as possible for other vessels to spot it.