If you are a little older, you will recognise the title as one from an LP made by Donavan in the 1960's. I thought I might be forgiven for pinching it.
I have been trying (empasise on trying!) to draw a Flying boat from the 1950's.
The pic shows progress so far.
If you are keen on looking at Flying Boat Pics, then here is a good place
My approach to the fuselage was to draw the individual frame shapes and then loft them, hoping that if I drew the inside as well, I would end up with a hollow aeorplane. Sadly, this approach came unstuck and I had to regress to a solid all the way through one. At the tail I lost patience (never a good plan if you want things to go right!) and drew the tail section as a chunk and tried carving bits off it. Not a good way to go, but I have resigned myself to the idea that this is just a first pass.
The process of getting information, ie PLANS was a bit of a trial. I ended up with a Short Seaford (not Solent) as my pdf of choice.