tlevine

The NRG is now offering the latest in its series of educational tools for the ship modeler: the Half Hull Planking Project. The purpose of this Project is to teach modelers how to plank a hull using spiling techniques. Even a novice should have no trouble learning this technique with the materials and instructions provided. The tools required for completion of this kit are inexpensive; even a Dremel is optional. The price for the kit is $52 for NRG members and $65 for MSW members. The kit will include everything required to build the kit except the building board. The manual will be available as a download. If you are interested , please contact the NRG office at info@thenauticalresearchguild.org. You can follow the construction here:

Work has continued on fairing the hull. The picture show how I determine if the hull is fair. The thicker black line is chart tape. The thinner lines are thread. Bulges and depressions are easily seen this way. The red marks on the frame is where more work is needed. After I am happy with the shape, I take thin battens and lay them across the frames, moving them in different diagonal directions to triple check my work. If you take off too much, simply glue a shim onto the frame, as I did with Frame 5. The fairing is complete except for Frame H. You can see that most of the black lines have been sanded away.

You can see that a lot of the black lines have been sanded away. Time to put it aside for the day.

Hull fairing has started. I everyone has their own preferences regarding tools for the job. I use a combination of flat and round sanding blocks and sanding discs on a Dremel. Because the backbone is soft basswood, I have protected it with masking tape. After the rough fairing has been done, I draw a line down the frames. Once these have all been sanded off, the hull is closer to fair. The next step will be to run battens of black thread, chart tape or wood to make sure there are no irregularities.

Frame 4a was repaired with 4 pieces of 1mm walnut stripwood left over from a kit. These measured 1 3/8", 1", 1/2" and 3/8". Each one was glued to the frame starting at the depth of the rabbet. Once dry it was sanded smooth. The first picture shows the four individual pieces and the second one shows the frame after the repair has been sanded smooth. The stern frames need to be installed next. Because of the tight curves in the hull, I have made this area semi-solid to facilitate planking. Taper the feet of Frames Ga, Gb and H and install them onto the deadwood. A filler block will make the whole assembly very strong and stable. This filler can be placed either between Frames G and Ga or between Frames Ga and Gb, depending on how you mount the frames. I have done it both ways. Glue the transom piece onto the "L" and make a filler from a scrap piece of basswood. Using the machinist square, mark the fore and aft faces of the frames with the location of the bottom of the rail. Transfer these marks to the edge of the frame. I use a piece of chart tape to finesse the line of the rail. Once happy with the flow of the line, I mark the frames and sand them down to that line. The carcass is now complete. To get to this point should take approximately 10-15 hours of uninterrupted work. The next step will be to fair the hull.

The bearding line on the deadwood is made by temporarily installing Frames F, G and H and marking the fore foot of the frame on the deadwood. The frames are then removed and the points are connected with a French curve or freehand. Aft of the bearding line, the thickness of the deadwood decreases until it is the same depth as the rabbet. In the picture you can see how the deadwood blends into the mortise/rabbet on the aft end of the keel. This was done with a sanding block. The deadwood, stem and L-shaped piece were glued in place. The "L" will be the foundation for the transom and counter. There is no attempt to fit it carefully to the top of the stem as this will be covered with planking. Install Frames F and G and their fillers, cutting the angled foot of Frame G before gluing to the deadwood. Now let's turn our attention to the bow. At this point I determined that Frame 4 was designed incorrectly. You can see the problem on the sketch as well as the correction needed. For right now, Frame 4 was installed 0.08" away from the depth of the notch. This will be corrected after the rest of the bow frames have been erected. For the same reason that the keelson notches were cut shallow, the slot for Frame 5a was not cut at all. Extend the lines for the fore and aft faces of Frame 5a onto the stemson. Then locate where the aft foot of the frame approaches the rabbet, as seen in the first picture. Draw a horizontal line on the stemson to represent the depth of the notch. These lines are in red. The hatched area in the second photo will need to be removed. The final result is seen in the third photo. Taper the foot of Frame 5 and install it and its spacer. Frame 5b sits directly on the stemson. Its purpose is to provide a solid gluing surface for the end of the planks so position this just behind the rabbet. In the pictures one can see that Frame 4a has been sanded in preparation for repairing the frame. Remember, glue does not adhere well to laser char.

In order to prevent breakage of the keelson and fore keelson, the notches for the frames were cut too shallow. Deepen the notch so that the horizontal component is just above the top ob the rabbet. The picture shows how much it needs to be deepened. This was easily done with a razor blade. These frames are a little different than seen in a typical POB kit. The reason for this was to make clamping the planks against the frames easier. But the downside is the possibility of sloppy vertical alignment. Using an inexpensive machinist square and spring clamp, the frame is held plumb and square to the keelson. The red frame lines on the plan help get the correct alignment. The frames on either side of the dead flat were installed first. Each frame only take a few minutes to install. After Frames 2-E had been installed, spacers were placed between the frames to provide strength to the assembly. The spacers are provided in the kit but will need to be sanded or shimmed up for a perfect fit.

Now that the rabbet has been drawn onto the various pieces, it is finally time to make some sawdust. The keelson rabbet is easy since it is a straight line on both pieces. There are many tools you can use to make the rabbet: sanding block, free-hand sand paper, straight-edged razor used as a scraper, chisel or plane. Chisels and planes are quicker but most novice ship builders do not have access to these tools. This rabbet was made with a sanding block and 120 grit paper. The keel rabbet is almost as easy. At the bow end there is a gentle upward curve which is easily sanded in. I wrapped the sandpaper around my finger to get the curve. Recall the line drawn on the keel at the deadwood? This marks the limit of the 45 degree rabbet and the beginning of a mortise, which will be cut in later. The bow rabbet is more complicated. Starting with the fore keelson, the angle of the rabbet steepens as the width of the rabbet diminishes (refer to the picture in the previous post). The depth of the rabbet is a constant. I used a sanding block to create this part of the rabbet. This narrowing of the rabbet continues onto the stemson, with the rabbet disappearing completely between the fourth and fifth waterlines (the horizontal green lines). Now let us draw attention to the stem. As the width of the rabbet on the fore keelson and stemson diminishes, the width on the stem increases. At the point that the rabbet is entirely on the stem, the rabbet becomes a mortise. You can see how the rabbet transitions in the next picture. In the second picture I have darkened the mortise portion of the rabbet to help illustrate the point. You would not do this on your hull. Finally, I have fit the three components of the stem together to show the completed rabbet at the bow. And the final result. Glue the pieces to the building board and clean up the transition between the keel and stem.

And I rarely use anything but yellow glue. What I will occasionally do is put a tiny bit of CA on a plank that is impossible to clamp but I will also have yellow glue adjacent to the CA for my "real" holding power. Everyone has their own preferences.

The rabbet is nothing more than a groove cut into the wood to secure the edge of the planking. This groove is always 90 degrees because, after all, the plank ends and edges are 90 degrees. Along the keel, that results in a 45 degree cut on both the keel and keelson. As the stem rises, the rabbet rotates so that on this hull with its bluff bow there is a 90 degree cut (mortise) on the stem and not cut on the stemson. Obviously, this is a simplification and if you are interested, read one of the several bibles of model ship building. The depth of the rabbet will be equal to the thickness of the planking, in this case 1/32". Along the keel and keelson, the width of the rabbet will be twice this thickness (1/16") or 1/32" on both sides. This is much easier to demonstrate than describe. Take a compass and draw in the rabbet on the upper and outer surfaces of the keel and the lower and outer surfaces of the keelson. Do not draw anything onto the deadwood. As the stem rises, the width of the rabbet narrows until it is 1/32", the thickness of the planking. This is accomplished by narrowing the rabbet marking on the stemson side while maintaining a constant width on the stem side. Hopefully the pictures make more sense than my description.

How often do we hear from our fellow modelers that they envy the power tools and gorgeous workshops that some of us are lucky enough to own. I admit to having some nice tools but most of my building is down on my kitchen counter. So one of the requisites for this project was that it would be built only using tools that even an entry level model builder would own. This includes things like sandpaper (various grits), Xacto knife with #11 blade, clamps, tape and glue. It is not even necessary to use a Dremel, although it will shave a lot of time off the construction process. Another very useful although optional item is a self-healing mat. The planking material will be cut out with the blade and the mat will provide a smooth surface without the fear of damaging the countertop (in my case) or workbench. The first thing to do is glue the paper pattern to a building board. The weight of the completed model is less than 3 oz. so a heavy-duty building board is overkill. I chose to use 1/4" paper-faced foam board from the craft store (Hobby Lobby). It is light weight, surprisingly durable and cheap. I used spray adhesive to affix the pattern to the board. The brand I use is Krylon. I have no idea why I chose this as the can is probably 15 years old. Any non-water-based spray adhesive work work well. Do not use water-based adhesives since they will distort the pattern. Since the sheets of components are laser cut, the first item of business will be to remove the laser char wherever it will be visible and wherever two pieces of wood come together, for example along the bottom of the keelson. The top of the keelson will not be seen and so does not need sanding. It will be easier to remove the frames as they are needed instead of all at once. This picture show all the backbone pieces with their mating surfaces sanded of laser char. It will be necessary to final sand the stem, stemson and fore stemson for good fit. This is seen below. If you wish, chamfer the outer edge of the stem. The soft basswood will make this easy. Just remember that the stem should be full width where it meets the keel. This kit was designed so that the rabbet could be easily cut into the backbone assembly, so nothing will be glued to the building board until the rabbet has been completed. Now that the pieces fit together well, the slots for the frames were enlarged, if necessary, with a sanding stick.

So let's get started. So far I have made four of these little ships. This will be number five. I learn something more with each one. These are the laser cut sheets that come with the kit. The top two sheets are the frames. These are 1/4" basswood plywood. This kit will have a large number of frames, in contrast with a typical kit to provide plenty of surface for gluing the planks. The bottom sheet contains the keel, stem, sternpost, etc. This is 1/8" basswood. Solid wood was selected over plywood to make it easier to cut the rabbet and deadwood. And besides, it just looks nicer. Planking material will be 3" x 12" x 1/32" basswood sheeting. And yes, you will be cutting out all your own planks. The kit will also contain the following plan. You can see that this one is in two pieces, my printer does not accept folio-sized paper. The kit plan will be one sheet. There is a scale in the lower left corner. The large divisions are five feet, the medium dimensions are one foot and the small divisions are one inch. Gun ports are show but we will not be building them (maybe on the sixth hull!). Per convention, the frames aft of dead center (represented by O) are lettered and the frames to the fore are numbered. I have spaced the frames evenly to give the plank butts a good landing place. Filler frames fore and aft will help secure the planks as their bend becomes more severe.

Thanks, Tim. We will have the costs determined shortly but one of our goals is to keep this well within anyone's budget. The frames will be 1/4" plywood; the backbone and planking will be basswood.

The Guild is an educational organization, dedicated to providing our members with the knowledge to improve the quality of their model ship building. One of the most frequently asked questions on MSW, from both novices and old hands, is "How should I plank my hull?" With this in mind, I have developed a half hull project to teach even the first time builder how to properly plank a hull. First, I want to thank Mike Lonnecker for help he has given me throughout the development process. Later this month, the NRG will beginning selling the kit for this planking project. It will include all of the wood and plan. The manual will be a download to help reduce costs. The photo shows the finished project. As this was developed as a teaching aid, certain shortcuts and compromises to historical accuracy were taken and I will mention these along the way. So I apologize in advance to the master modelers who will certainly find some of my technique unconventional. But they work!

"How do I plank a hull?" It is one of the most frequent questions posed on MSW. And it comes from all levels of builders, from the total newbie to those who have several models under their belt but are afraid to take the plunge to learn how to correctly plank a hull. No one wants to ruin an expensive kit by experimenting with hull planking, after all. The Guild recognizes this; we have all been there! We are in the process of developing an inexpensive kit (actually a learning aid) to specifically address the need to learn how to plank a hull correctly. Our goal is to have this available to all regular and associate members of the NRG by Conference time next month. I will be starting a build log in the scratch build area entitled Half Hull Planking Project and our intention is to turn this into a group build as soon as we start shipping. The photo is of my prototype kit.

I also have the Vandalay duplicator and never had much success with it.

You only have until Sept. 30 to get the free download of the HMS Winchelsea by joining the NRG or renewing your membership for 2 years. That's only 10 days from now.

Please remember also that the Moderators are all volunteers. They resolve issues related to bad posting locations, spam, inappropriate behavior by members and removal of outdated postings. They also do other behind the scenes work that the general membership is unaware of. To also expect them to constantly sift through build logs, searching for the ones which have not been updated in over a year, is not realistic. And as Mark said, the Moderators have no way of knowing if a build is abandoned or temporarily on the shelf.

Jack, does your set include the figurehead?

Mitch was a total Gentlemen and I am proud to have served on the Board with him. He was also my friend. He will be greatly missed.

I have the Ship Ahoy motor installed on my Preac. It is a lot more powerful than the original equipment.

Your model is too good to put on a flat decoration instead of a quarter gallery. I compared the quarter gallery on Fly with Atalanta. The only differences are the details of the carvings and the angle of the center bank of windows. I assume you have TFFM Vol.2. Follow David's instructions and you should be fine. Also, take a look at Bill Maxwell's Fly on the Admiralty Models site. It gives a good perspective of the depth of the structure.

Your best bet is to go to a place like FedEx that has large scale printers. Then be prepared to experiment with the enlargement ratio, obviously for a price. Enlarge all your plans on the same day, on the same copier for the most accurate results. If your enlargement is off by a bit, all of the plans will be off by the same percentage.

Are you gluing this to deck beams or a sub-deck? For beams definitely go with PVA. I use Titebond II. For a sub-deck, consider using contact cement. It will handle the sheer and camber but once you put it on the sub-deck, there is no moving it around.

Install the plywood subject first, build up the bulwark and then plank. You cannot get a tight fit against the bulwark any other way. (I assume with your kit there is no edge plank or waterway. It is also easier to bend the plywood to get it into the hull prior to planking.