Go Back   Cruiser Log World Cruising & Sailing Forums > Cruising Forums > General Cruising Forum
Cruiser Wiki

Join Cruiser Log Today

Reply
 
Thread Tools Search this Thread Display Modes
 
Old 04-24-2007, 12:40 PM   #15
Admiral
 
Auzzee's Avatar
 
Join Date: Jan 2005
Home Port: Darwin
Vessel Name: Sandettie
Posts: 1,726
Default

Hi Muroc,

Alternative power is a huge subject and may be worthy of a separate topic. However. If you are going to be cruising mostly around the Apple Isle, you can't afford not to have a wind generator. New Airex marine sets are available through the manufacturer on EBay for an astoundingly low cost. Main problems...You need to mount them high to avoid the possibility of injury and although modern units are much better, there is still a problem with them resonating through the hull (harmonic vibration?).

Solar is great if you are cruising tropical latitudes. No matter whether you use solar, wind, 240v alternator, genset, inverters or whatever, it is necessary to link them to your battery banks via smart regulators.

There is a degree of science involved in determining your power requirements, and determining the appropriate charging system and capacity. Add-ons can be a real nuisance in the future, so get good advice from someone heavily involved in marine charging and storage systems, and build it big enough to allow for a future expansion of power needs.

Cheers

David.
__________________

__________________
"if at first you don't succeed....Redefine success"!


Auzzee is offline   Reply With Quote
Old 04-24-2007, 03:50 PM   #16
Admiral
 
Nausikaa's Avatar
 
Join Date: Sep 2005
Posts: 1,619
Default

Hi again Muroc,

I am pleased you found my answer helpfull. It has occures to me though that I should have added a little more about transponders, such as SeaMe. These devices are not cheap, costing about 400 but they are good. The great advantage with a transponder, apart from being seen, is that in normal operations it draws very little current as it operates in "receive only" mode. Once a RADAR signal is received it goes into transmit mode. Alson, it gives a signal indicating that it has picked up a vessels RADAR signal, which is a good warning of trafic in the vicinity.

What is the disadvantage? Well, apart from not being a RADAR as such, thus not being able to indcate the direction and range of the vessel from which a signal has been receved, it operates only on one wavelength. Maritime RADAR operates on either 3 or 10 cm. wavelength. Normally ships use 10cm but at shorter distances 3cm. The advanced RADAR sets big ships use change the wavelength automatically as the range is changed. This means that the transponder will only be picked up on the 10cm. wavelength. Is this a problem? Well, not normally. Looka arround at big ships and you will see that they are fitted with at least two RADAR sets. They usually have one set at longer (10cm) range and one at closer 3cm. range.

Once again, good look with the boat.

Aye,

Stephen

Yacht NAUSIKAA
__________________

__________________
Yacht NAUSIKAA | Call Sign: 2AJH2




WHEN WAS THE LAST TIME YOU DID SOMETHING FOR THE FIRST TIME?

www.nausikaa.org.uk

= Sweden, Norway, Denmark, Lithuania
Nausikaa is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
C.A.R.D radar detector barryg General Cruising Forum 5 01-10-2013 08:35 PM
New Radar CaptDavi General Cruising Forum 2 06-29-2011 04:14 PM
Broadband Radar MMNETSEA Power & Electronics 1 08-04-2009 12:34 PM
Radar Love Gallivanters General Cruising Forum 2 09-26-2007 02:25 PM
Radar Reflectors Auzzee General Cruising Forum 10 09-05-2007 09:20 PM

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

RV & Travel Trailer Communities

Our RV & Travel Trailer sites encompasses virtually all types of Recreational Vehicles, from brand-specific to general RV communities.

» More about our RV Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities


All times are GMT. The time now is 03:33 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.0