Cruisers Forum
 

Go Back   Cruisers & Sailing Forums > Search Forums
Reload this Page Search Results
Cruiser Wiki Click Here to Login
Register Vendors FAQ Community Calendar Today's Posts Log in

Showing results 1 to 13 of 13
Search took 0.00 seconds. Search: Posts Made By: beau
Forum: Multihull Sailboats 10-12-2007, 16:52
Replies: 49
Views: 6,995
Posted By beau
OK, I have placed 3 inch spacers under the rear...

OK, I have placed 3 inch spacers under the rear outrigger arms pushing down the floats giving me more buoyancy in the stern and removed some batteries. The stern raised 3 inches and is almost clear...
Forum: Multihull Sailboats 29-11-2007, 22:45
Replies: 49
Views: 6,995
Posted By beau
The prototypes did not plane and they were...

The prototypes did not plane and they were heavily loaded for their size.

For a start, there are no eddys or turbulence along the hull sides, which is why there is no bow wave, it is the...
Forum: Multihull Sailboats 29-11-2007, 18:03
Replies: 49
Views: 6,995
Posted By beau
There are two forms of resistance, wetted surface...

There are two forms of resistance, wetted surface and bow/stern wave formation.
reducing wetted surface can only be achieved by lifting the boat free of the water planeing or hydrofoils or...
Forum: Multihull Sailboats 29-11-2007, 16:40
Replies: 49
Views: 6,995
Posted By beau
Thank you all for your support. Nick, your...

Thank you all for your support.

Nick, your dead right, and i will be doing as you suggested.
The biggest problem is, I have 4 X 200 amp batteries too far back.
I will remove two of them...
Forum: Multihull Sailboats 29-11-2007, 14:58
Replies: 49
Views: 6,995
Posted By beau
Thank you for your advise but I have studied...

Thank you for your advise but I have studied naval architecture and no where does it say that a fine angle of entry plus a flat wide stern will "defeat" the OLD rule of squareroot of waterline Etc. ...
Forum: Multihull Sailboats 19-11-2007, 14:02
Replies: 49
Views: 6,995
Posted By beau
the black waterline was the proposed and the red...

the black waterline was the proposed and the red is what I ended up with when I put on more batteries and put them further back.
Forum: Multihull Sailboats 19-11-2007, 13:52
Replies: 49
Views: 6,995
Posted By beau
jeff,I really appreciate your comments. I will...

jeff,I really appreciate your comments. I will study them in a bit more detail and get back to you.
Enclosed are drawings

The red lines are the waterline
Forum: Multihull Sailboats 18-11-2007, 22:08
Replies: 49
Views: 6,995
Posted By beau
They were not small scale models but between 12ft...

They were not small scale models but between 12ft and 15ft long. however I do agree with your comments regarding scale.

It appears to be stern drag that is causing the problem. There are a number...
Forum: Multihull Sailboats 18-11-2007, 14:21
Replies: 49
Views: 6,995
Posted By beau
Thank you Jeff, for your input. Years ago I...

Thank you Jeff, for your input.

Years ago I had a 26 ft Telstar Trimaran which had a quite narrow center hull. We set it up with a 9.9 hp outboard and used to get 10 knots easy. I put a 25 hp...
Forum: Multihull Sailboats 17-11-2007, 23:12
Replies: 49
Views: 6,995
Posted By beau
I agree hull speed for a displacement boat this...

I agree hull speed for a displacement boat this length is 8.5 knots, but it shouldn't take 60 hp to get there in a 5 tonne boat 8 ft wide.
I must be developing a lot of drag somewhere because of the...
Forum: Multihull Sailboats 17-11-2007, 14:30
Replies: 49
Views: 6,995
Posted By beau
Ok, I put new prop's on from Solas, 9.9 X 9 three...

Ok, I put new prop's on from Solas, 9.9 X 9 three blade.
I got 6,000 rpm at full throttle. good.
but only a small increase in speed 8.5 knots. I can sit on 7.5 knots at 4,250 rpms.
Still no sign...
Forum: Multihull Sailboats 11-11-2007, 14:30
Replies: 49
Views: 6,995
Posted By beau
Thank you all for your help. I am aware I might...

Thank you all for your help.
I am aware I might have needed different props because this not a planeing boat and the 30 hp Honda is designed for a small planeing boat.

I have spent many years...
Forum: Multihull Sailboats 09-11-2007, 23:56
Replies: 49
Views: 6,995
Posted By beau
power problem

i am having a problem.
I have recently launched my 40 ft power trimaran with two, thirty hp Honda outboards and performance is well below what it should be.
With one motor at 3,000 rpm I get 6...
Showing results 1 to 13 of 13

 
Forum Jump


All times are GMT -7. The time now is 10:20.

Contact Us - Cruisers & Sailing Forums - Sitemap - Community Rules - Terms of Service - Privacy - Accessibility - Top

Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
close

Privacy Guaranteed - your email is never shared with anyone, opt out any time.


ShowCase vBulletin Plugins by Drive Thru Online, Inc.