The world's leading magazine for all model boating interests

Subscribe

The Modelling Hub Logo

The world's leading magazine for all model boating interests

Subscribe
Buy Latest Issue

Forums

Help

Register

Log in

Displacement weight

Advert
New Replies
Report Bug
Help/FAQs

Displacement weight

Home › Forums › Beginners › Displacement weight

  • This topic is empty.
Viewing 4 posts - 1 through 4 (of 4 total)
  • Author
    Posts
  • 15 February 2014 at 14:48 #47140
    Alan Coleman
    Participant
      @alancoleman49879

      Hi all, I have recently purchased my first model to build and (not unusual i guess) have question.

      The model has a displacement weight of 20lbs. Does that mean I have to put it to that weight for her to sit in the water properly?

      Advert
      15 February 2014 at 14:48 #2372
      Alan Coleman
      Participant
        @alancoleman49879
        15 February 2014 at 17:18 #47142
        Dave Milbourn
        Participant
          @davemilbourn48782

          That's exactly the point that Archimedes got so excited about in his bath. The weight of water displaced is equal to the weight of the model, so if you want it to 'sit' right then it will have to displace 20lbs of water. Don't forget that the model itself will already weigh something, then there's the batteries to add (frequently the sealed lead-acid type) etc, so you may end up not having to add much extra "deadweight" ballast at all. If the model is too heavy for you to launch it just by leaning over from the bank and manually putting it into the water you could make a launching cradle to help you.

          Dave M

          15 February 2014 at 21:48 #47152
          Alan Coleman
          Participant
            @alancoleman49879

            Many thanks Dave, I thought that might be the case, and now I know.

          • Author
            Posts
          Viewing 4 posts - 1 through 4 (of 4 total)
          • Please log in to reply to this topic. Registering is free and easy using the links on the menu at the top of this page.

          Latest Replies
          Report Bug
          Code of Conduct
          Help & FAQs

          Code of conduct | Forum Help/FAQs

          Advert

          Latest Replies

          Home › Forums › Beginners › Topics

          Viewing 25 topics - 1 through 25 (of 25 total)
          Viewing 25 topics - 1 through 25 (of 25 total)

          View full reply list.

          Advert

          Latest Issue

          Subscribe
          Buy Latest Issue

          Newsletter Sign-up

          Latest Replies