Well, here's something that should bring in some debate ;-)
As I am sometimes asked… 'Well what would that cost me?', I decided to put together the simplest possible formula in order to arrive at a quick ballpark figure, depending on whether it was a Production boat or Homebuilt.
It makes a LOT of assumptions of course and will certainly not cover all the details of various sail or mast materials, but it's a useful start.
Because, getting ANY basic data is difficult, it uses only three readily available criteria, so assumes that whatever the item, it's a variable of one or more of these dimensions. For example that sail area is a function of beam and mast height… that material is a function of length and beam… and so on.
Anyway, it's better than nothing and just a start as I'm sure some of you pricing experts can help tweak at least the Cost Constants ;-)
Actually, with the use of these six Cc factors, it's surprising how close one can get!
(By the way, it did appear that the use of (L × B × H)² could be tweaked by using a slightly lower value of the power indice, like 1.8, and raising the cost coefficients, but decided to stay with the 'square' as being far easier to calculate. The KISS principle ;-)
|175||Production Cost basic boat, no interior, RTS|
|195||With full equipment, RTS|
|210||- ditto - with trailer|
|230||Basic stripped boat of 100% carbon fibre, RTS|
|100||Total Material Cost (plywood & epoxy sheathing) RTS|
|120||Total Material Cost (foam & epoxy glass) RTS|
|RTS = Ready to Sail|
|SeaCart||30 × 22 × 50||= US$250,000|
|F22||22 × 18 × 35||= US$33,600 basic, $40,340 c/w eqpt + trailer|
|Trikara||19 × 16 × 30||= US$8,300 for materials, RTS|
|W22||22 × 19 × 30||= US$15,700 - ditto - all materials|
|F25A||26 × 18 × 33||= US$28,600 - ditto - all materials|
|W17||17 × 14 × 24||= US$3,600 - all materials (ply + sails)
= US$8,830 Production (composite) - RTS
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