Cruisers Forum

  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
Thread Tools Search this Thread Rate Thread Display Modes
Old 16-01-2021, 23:13   #1
Registered User

Join Date: Jan 2020
Posts: 341
Cat Loading

Attached is a spreadsheet of the Loading specs on a Lagoon 500 ( interpreted from owners manual - a couple of assumptions on crew wt etc ), that takes it from the Lightship displacement to maximum load so approx 5 Ton with crew of 14 aboard. Obviously less crew and more toys can be had.

Next to it I put basic stats of a performance 50ft cat just to see what I would need to give up in order to meet that cat's maximum of 3 Ton.

This is for interest only as I could find nothing else on the internet for such a calculator.
Attached Files
File Type: xls Cat Loading.xls (33.0 KB, 48 views)
Tin Tin is offline   Reply With Quote
Old 17-01-2021, 04:10   #2
Registered User

Join Date: May 2014
Posts: 905
Images: 2
Re: Cat Loading

Some quite good assumptions and really highlights problem areas.

I see one is not included in your list but 350kg for a generator shows what a big performance hit this would be.

I would say 960kg for water given there is a water maker in the mix would be unnecessary.

Suppliers and personal is too small IMO a person needs to consume about 2.5kg per day per person. You also have to account for extra days and it is not just what you eat it you need to the natural packaging, banana skins, potato peelings etc and the unnatural, cans, bottles and cartons.

Soap, toothpaste, shampoo, sheets, bedding, weather gear">foul weather gear?

Spare parts and tools seem to have been missed. This makes up a huge percentage of the weight on a cruising boat. Rigorous selection can help like only taking the sockets that you need rather than the whole socket set. Engine spares can be limited on a cat for A-B cruises but need to be included for long term living aboard.

Is this something you are planning?


The thought of "14" crew offshore in the official assumptions is enough to make anyone give up sailing.
Tupaia is offline   Reply With Quote


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

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
Bimini...Gun Cat...Cat Cat. Customs Wayward Drifter Atlantic & the Caribbean 9 03-03-2020 07:16
Cat vs Cat vs Cat which one to buy? C-man77 Multihull Sailboats 84 03-10-2015 20:07
Coastal Explorer Chart Loading bmiller Navigation 4 23-05-2009 14:09
Loading pictures on the "post reply" delmarrey Forum Tech Support & Site Help 6 04-05-2003 06:10

Advertise Here

All times are GMT -7. The time now is 09:41.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.