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Huhhuhhuhhuh... Hey, baby, wanna Springstyle?... *SLAP*

I've messed around with the program and keep getting a "bad seaboat" result, even when starting from the real Hawkins specifications and expanding logically.

If someone who is better at this than I am wants to tackle this, I was thinking that the ship would be a Hawkins-hull expanded by about 30 feet, with proportional increase in beam and draught. So far it hasn't preserved the seaworthiness of the original hull, but I'm not very experienced with springstyle/sharp whatever it is.

Do the real Hawkins specs result in "bad seaboat" as well?

not according to a springstyle profile I found on the web. I haven't typed them in myself.

If anyone can tell me / point me at the actual Hawkins parameters, I'll take a stab at this tonight.

"Springstyle" is a windows app based on the original "Springsharp" program and algorythms. One place you can find it is here.

Real-life Hawkins class measurements

displacement 9800 tons
Dimensions, 565 pp, 605 oa, Beam: 58 ft, 65 feet with bulges, draught mean 17.25, max 20.5
Propulsion: 4 shaft Parsons geared turbines, speed 29 to 31 knots depending on ship (each ship had slightly different shp due to differing machinery fit)