Reading Dale R Hamilton's thread about his dream 48 footer and the cost of $400 K I have wondered why the trawler ( say we define it as a heavy relitively deep draft some what blunt load carryer displacement craft) is a design choice.
Mr Bolger has a (32 foot?) design with a boaty hull based more on the dutch craft for a couple to retire on and say spend the summer in maine and the winter in the caribean. but he also has that "super sharpie bolger box" he designed for an austrailian client of about 50 feet ment to sail to europe then fit in the cannels of the contenent? ( don't remember if it would be the long boat style size to fit english locks belive the width is 6 foot 8 inches beam? and what 65 feet long?)
but the designs that intreague me are the narrow shallow draft tri hulls and the wave peircing long lean monohulls craft where smaller engines mean lower costs better fuil economy. lower cost ( as mr Bolger said in the first small boat journal story of his I ever read, about a 16 foot tug boat 'boats cost per pound'. the length of the boat was driven by a new state tax on longer boats.) it should also be noted that boats over 10 metres face extra laws and regulations.
on the other hand if you think the compairison between a trawler design and a wave peircing design is something like a monohull vrs a sailing trimaran where the former depends on ballest to stay upright and the latter o more on form.... some studies I have read indicate that 40 foot multihulls are about the minium of safe size for off shore I wonder if ultra light long lean boats need to be over 40 foot before they become safe?
then their is the comfort level where the quick movements of a light weight craft wear out the crew and endanger judgement. and would the heavyer craft shorter broader be stronger ( remembering the ultimate storm movie if the hull had not been comprimised by the paravane would it have righted itself insteed of flooding and sunk?) or would a higher displacement speed of a longer craft with a smaller imerced cros section be able to outrun a storm?
thankyou for your thoughts
[ 03-10-2006, 12:51 AM: Message edited by: seafox ]