SailNet Community - Reply to Topic

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > Boat Builders Row > Beneteau > cruising speed beneteau 40
 Not a Member? 


Thread: cruising speed beneteau 40 Reply to Thread
Title:
  

By choosing to post the reply below you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Message:
Trackback:
Send Trackbacks to (Separate multiple URLs with spaces) :
Post Icons
You may choose an icon for your message from the following list:
 

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Click here to view the posting rules you are bound to when clicking the
'Submit Reply' button below


Additional Options
Miscellaneous Options

Click here to view the posting rules you are bound to when clicking the
'Submit Reply' button below


Topic Review (Newest First)
08-29-2008 04:21 PM
sailortjk1
Quote:
Originally Posted by hellosailor View Post
Roni, with enough growth of the prop, even if the hull is clean you can reach full throttle and have zero forward speed. On pretty much any boat.

If you have growth ("a good beard") on the hull and some on the prop, hitting 6 knots would be quite good actually. It can easily cut 1-2 knots off the speed of a boat.
Its amazing how much just a little growth can slow you down, Just like HS said. Even a small bit of seeweed on your prop will significantly alter the proformance of your boat.
08-29-2008 03:01 PM
hellosailor Roni, with enough growth of the prop, even if the hull is clean you can reach full throttle and have zero forward speed. On pretty much any boat.

If you have growth ("a good beard") on the hull and some on the prop, hitting 6 knots would be quite good actually. It can easily cut 1-2 knots off the speed of a boat.

Engine life and performance is a whole realm of "maybe". A good diesel, properly maintained and operated, should get 5,000-10,000 hours on it before it needs an overhaul. Not years--but hours of operation. If it is abused, the cylinders can get carbon deposits, the injectors can be ruined, and acid and sludge in the oil can ruin bearings while the cylinder walls and rings have rusted--all in the span of two or three years with near-zero use and zero maintenance.

Some maintenance is seasonal (before/after layup) while other things are base don hours of run time. If the boat doesn't have an hour meter ("Hobbs" meter) that tracks the hours the engine is actually running, they are not hard to add, and they give you a real count instead of guessing.

There's really no way to be sure, except to have a diesel mechanic take a look at it. He can pull the injectors, look inside the cylinders with a borescope (without remoing the head), test and if necessary overhaul the injectors, run an oil sample analysis, and give you specific answers about how healthy the engine is. That's probably going to cost you $300 or so, unless he hits the key and says "Gee, sounds perfect!" and tells you to skip the rest.

If you are unfamiliar with the engine, and diesels in general, it can pay to simply get a referall for a GOOD mechanic (which isn't always easy) and then have him come out for a couple of hours to inspect the engine AND to show you what has to be done to keep it running properly, how to bleed the fuel system, and so on. A much better investment than a tow or AAA membership.<G>
08-29-2008 02:04 AM
negrini Regarding performance, Zanshin is correct ! Age has minimal effect to the engine, specially these reliables Yanmars. Hours, of usage gives you some reference, but MAINTENANCE is the key here. Properly maintened, these engines goes well beyond 10,000 hours of service. A visual inspection will revel PO care on boat, including engine, but have it surveyed for a consistent check.
08-19-2008 02:06 PM
Zanshin The LWL of the Beneteau 40 is 33 11/12 feet, so your hull speed is 7.8 knots.

You are probably getting a lot of drag off the hull and perhaps even cavitation from the prop. You should be getting more RPM and speed from the engine but that could be due to the dirty hull. More importantly, clean and smooth the prop.
08-19-2008 01:59 PM
ronikokernoot
cruising speed beneteau 40

Hi I am going to buy a Beneteau 40 from 1996 with a Yanmar engine.
The boat has been in the water for more then a year.It has a lot of Barnacles
also on the prop.While sailing it got to 3000 rpm and a speed of 5.5 knots to 6 knots.
What should be my maximum speed and my cruising speed?
Should a 12 year old engine perform like a new one and what is the life expectancy of this sort of engine?

All advice is appreciated.

Roni

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


All times are GMT -4. The time now is 01:16 AM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.