how about a variance of 'boat wheels'.
I reviewed Sponberg's article and based on my 45+ years in the boat design business*, he is pretty well 'on course'. One item I would mention is...
as far as regulations, check with the USCG. Is this a pleasure yacht or commercial (passenger)???
Thanks ExileMoon - I pretty well agree 100% with your comments. Two features about using aluminum (a) the shop(s) can be a cleaner environment -...
A photo of the Cat mentioned. Does various types of cruises (dinner, wedding, etc) in Vancouver.
My choice would be aluminum. Steel would be heavier and affect performance, plus, if operating & maintenance costs were amortized over 10 years,...
Can you post this advertisement of the 'class 40' so we can see what the claim is
Interesting topic. I have not read all the posts in detail but there may be another small aspect to keep in mind - Units. This observation may be...
a cored hull can be 'moulded' Sail boat looks like a pretty old boat - mid-60's
One method I have seen & used: You can estimate the price of similar type boats(hull forms) using the "cubic number" which is L x B x D (length x...
maybe it is treated wood from old growth(virgin) forests.
This may seem totally 'out there' but consider lightning protection. Appears the panel is adjacent to a chain-plate & there is no ground strip...
Agreed - the power train access looks a bit difficult. I believe Spencer used Isuzu engines but the drive was conventional shaft.
No dimensions given but could it be a Spencer 35 ??. Built in Richmond, BC, Canada by Spencer Boats. Design by John Brandlmayr Ltd Spencer built...
That's a long sprit? Is it 32" from the stem head or 32" length overall.??
also check out Renato (Sonny) Levi
Also make sure the prop blade area of the new O/B is similar to the old I/O. Example: If you had 16" diameter 3 blade on the Volvo then a 14" 3...
Hi
According to a documentary I saw, a contributing factor was free surface moment (FSM). They only needed 100mm (4") of water on the deck to capsize.
my guess - the 'bolts' are cast into the lead ballast, more like studs, & not removable. The usual way to evaluate is to undo nuts, & drop the...