Model Boats

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Taking the Lines from a Model (Pub. No. 7859)

by Bertram S. Booth

With the growing interest in model yacht sailing and the increased use of models by designers in tank tests, a simple method for taking off lines should be of interest to many model builders. The following method requires only the simple device shown in the drawing and the usual drawing board and other rudimentary drafting equipment. It is entirely independent of the lifts or laminations; and the waterlines, buttocks and Stations may be spaced at any convenient interval on the drawing. No markings are required on the model and with a little care a very accurate drawing can be made. As both the buttocks and waterlines can be taken off, a check of the work is obtainable. The method is adaptable to either a full or a half model; and, if it is inconvenient, the back board of a half model need not be removed.

2 page(s)

Model Hydroplane Skims the Water (Pub. No. 7875)

By Roy L Clough Jr.

Pusher prop spun by model-plane engine gives high performance. Construction is easy and fast

Hydrofoils have been around for some time, but even so, nothing on the boating scene draws every eye like a hydroplane lifting out of the water as it gains speed. Even the U.S. Navy has been attracted to foils, and has tested them on its fast boats. The model shown here can be completed in a couple of work sessions. Surface-piercing foils and air-prop drive give it speed and stability with minimum complexity. Construction is far simpler than you’d guess from the performance. Basically, these craft deliver greater speed because resistance against several small areas (foils) is considerably lower than against a complete, submerged hull. Resistance declines as the craft rises. Completely submerged foils are the most efficient, but they require sensing and control systems to keep them at proper depth. Surface-piercing foils automatically adjust for depth—but they also have a tendency to create air bubbles that reduce lift. This model uses a foil design that minimizes this undesirable side effect.

3 page(s)

What the Country Needs: A Good 5c Chisel (Pub. No. 7931)

by Earl L. Pringle

You can make these lathe turning tools from cut nails and pieces of dowel.

Most model builders eventually need a set of small wood chisels—whether it be for fine inlaying, carving or turning miniatures. For years, I’ve been searching for the right kind of steel to make my own and finally decided to use flat, hardsteel 8d masonry (or cut) nails. These can be found at your local hardware store or lumberyard. Buy 1 lb. along with three 3-ft. lengths of 1/2-in. diameter dowel. Happily, you can make a fairly complete set for less than one store-bought chisel. They are quick and easy to make, as can be seen in the photos. It took me about three hours to make my assortment of 20 different sizes and shapes.

3 page(s)

Making Deadeyes and Lanyards (Pub. No. 7944)

How to make model deadeys and lanyards for ship models.

4 page(s)

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