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>> Home > Tags > hull

hull
hull
Legal Limit by Krampus Lieutenant   Posted: 21 hours ago
Original design "Express Cruiser" type boat. Old home-made fiberglass hull built in UK in the 1970s and rescued from previous owner's garage. Model built during April-July 2015. Approx. 1/24 scale. In trying to emulate a Bertram Bahia Mar boat, I ended up with an originally fictitious design. Real life boat could be a 32-footer (9.75m) yacht. 3mm 9v LED navigation lights system. Runs on Mtroniks G2 3A Hyper BEC 6-12V 15A Constant controller, Biao123 A2122 brushless motor, and a NiMH 10.8v battery.

Pinkie Pie by Krampus Lieutenant   Posted: 21 hours ago
Model kit made on or about 1969 by defunct German firm Robbe based upon Chris Craft Roamer motor yachts of the era. Hull appears to be inspired on 1950s Chris Craft Constellation series. Model tried to emulate a 46 feet version. I got this one half-built and adapted as a gift for my child inspired in the "My Little Pony" characters. Approx. 1/20 scale. Authentic Chris Craft Roamer 46 measured 46 x 15 feet. It runs with a 4-bladed 40mm metal propeller, 320A 7.2V-16V ESC 30A constant, a NiMH 9.6v battery, and a Mabuchi 540 Motor.

Aeronaut Pilot by Skipper44 Sub-Lieutenant   Posted: 1 day ago
Just uploaded Part 1 of my build log which includes the building of the Hull. https://www.youtube.com/watch?v=fabbtvALQes T

Aeronaut Pilot Boat by Skipper44 Sub-Lieutenant   Posted: 1 day ago
hi guys, i have just finnished my hull with all the electrics and its all watertight etc but no rubbing strake was included in my box?! was this the same with yours? if so where did you buy yours? Thanks Tintin ps i have put a video on youtube etc but will post all the links on a build log im starting soon!

Building a deck by Jerry Todd Lieutenant   Posted: 2 days ago
I began laying the deck on April 5th. It had snowed as recently as the week before, but it finally warmed up enough to use glue. The strips were cut to 6-5/8" length, about 20' in 1:36 scale. I used a black marker on two opposite sides to represent the pitch in the seams. The deck was laid in a 5-plank pattern to mix up the butt-joints as much as I could. My research on her decking found she's had various styles and plank widths over her life. The earliest photo showing her deck that I could find, showed it straight planked with 7 or 8" wide boards based on the number of planks between her waterway and the main hatch coaming. Her waterway logs seem to be placed ON the decking, as there's no margin planks or joggling - even today. The planking was set with gel CA. Gorilla sells it in a nice bottle with a metal pin in the cap to keep the spout open. It would up taking 3 of these bottles to complete the deck. The planks are cut at a 45 on the ends along the fore and aft access hatches, to try and hide this seam as much as possible. Once the deck was down, I scraped it. The glue is more resistant than the basswood is, so sanding would have scalloped the wood between seams. Scraping makes everything level. Some lite sanding, more to polish than remove anything, was done last. I had planned to stain the deck a very light grayish tint, but an active naval vessel gets holy-stoned regularly and wouldn't be gray as the ships that sit at a dock today are. In all it took 455 pieces to complete the deck and there wasn't any scrap longer than 1 inch left over. In all I have 3/4" deck beams, 1/4" plywood, a layer of 4oz cloth and resin, and a 3/16" basswood deck - I don't recall why I designed it so heavy, but it certainly doesn't hurt the model at all, and I think the 3/16" square strip will prove to have been easier to set than the 1/16" x 1/4" planks Pride and Macedonian will get. The deck go a coat of water-based satin poly, and I stared working on hatch coamings, cap log, and waterways. The cabin skylight and two hatched forward of it, including the capstan, and all combined into one hatch where the battery is accessed, and which hides the aft ballast rod and main power switch. The cap logs Are 1/2" wide x 1/4" tall basswood that was tren'led, glued, and copper nailed, onto the deck, flush with the outside of the hull covering this seam completely. The the angled wood waterways were installed around the inside of the cap log, and the deck got a coat of oil-based satin poly. This actually leeched in and made the marker seams bleed a little. In hind sight, I think I'll go with paint over marker for seams in the future. The coamings got painted black. I'm not sure why the Navy painted deck fittings black. It was even common to paint to top surfaces of tops black. I wonder how many injuries and losses this cost the navy that white paint would have prevented. Anyway... Constellation didn't have "solid" bulwarks, but rather she had hammock irons bolted to her cap log. These were removed when Baltimore tried to pass her off as a frigate and tossed in the bilge. When the ship was restored as a sloop of war, they found all but one. These irons are designed to have wooden rails at their tops, inboard and out, and have holes so several lines can be run through them. The Navy in it's wisdom though, decided to wainscot them to appear as solid bulwarks, despite the additional splinter hazard that would be in battle. I wasn't making all those metal stanchions just to hide them under wood and tarps, so I made wood blocks sheathed in sheet bass, scribed to look like vertical wainscotting. It was the end of April by now, and the Baltimore Port Expo was in two weeks. I wanted to have hammocks in the bulwarks, as she appears in the portrait, but there was no time to figure this out, so I layered on some balsa and shaped it so it looked like tarps were laid over the hammocks. When I figure out how I'll represent the stowed hammocks, I can pull the balsa off easily enough. The bulwarks on, I made some fittings for the spencer masts; installed the eye bolts at the base of the masts; made some bollards (or whatever name they gave those posts), made and installed the catheads, which are laminated 1/16" basswood. I then started setting up a jury rig and her controls so she could sail at the Port Expo. I set her t'gallants and all three heads'ls this time around. By the night before the Expo, she was ready to go.

Richards 48" Swordsman by rmwall107 Chief Petty Officer   Posted: 2 days ago
hi I have been off the air for a while so time for an update. i have sealed and strengthend the hull by using very light glass cloth and Ezy-cote resin. this was very easy to use and i think gave very good results praticularly as i have not done glassing before. the the boat has been painted now and i am just starting to plank the deck. to plank the deck i am using the permenant marker on the edge to give the impresstion of caulking. i am verying the time the marker is in contact with the wood so the mark very's a little on thickness i think this looks more realistic than an even line, on a test piece it looked good. i will add some photo's soon, i keep forgetting to take them🤔

Mi Nuh Biznizz by Krampus Lieutenant   Posted: 3 days ago
First sea trial of "Mi Nuh Biznizz" (meaning "I don't care" in Jamaican slang). All plastic built using an altered Krick Lisa-M hull. Work in progress. Pretty wet run. Needs some spray rails, that's for sure 🤔

Admiralty drawings by RHBaker Admiral   Posted: 3 days ago
Norm, the SS Great Britain and the SS San Demetrio could be interesting, are they waterline or full hull drawings? Rowen

The Spar Deck by Jerry Todd Lieutenant   Posted: 3 days ago
Once I was satisfied I had all the fairleads I needed, or might need (I put in some extras, just-in-case), It was time to permanently close up the deck. The luan plywood sub-deck had long ago been cut into 2" strips to allow it to take the deck camber and sheer. I had also painted on it's underside except where the deck framing was, so the paint wouldn't interfere with the epoxy. I got a few very nice days in October (2014) great for dealing with epoxy, and to take on this major step in the model's construction. There's a sinking feeling about this, like you've just locked your keys in the car. First I removed the mechanical decks below, cleaned out the hull, replaced a deck beam whose joint had never set right, and dabbed epoxy onto things I'd never be able to reach again. The mechanical decks were painted white. The turning blocks for the steering were epoxied in place; having been hot-glued in all these years. Now I painted epoxy on the entire underside of each strip to seal it as well as glue it to the deck beams. Working from out-board toward the center-line. I clamped the strips down, but also used copper tacks to hold it down that would be left in. In short order, the sub-deck was epoxied and nailed in place. Now the only access inside was through the hatches. All the cracks and seams on the deck were filled with polyester putty (Bondo), especially around the deck/hull joint. When this set, I sanded it, filled missed places, and sanded some more. Then a layer of 4oz cloth, left over from glassing her hull 5 years before, was laid on the sub-deck. At this point the deck was an integral part of the hull. I ordered 3/16" x 48" square bass strips to plank the spar deck. I was going to cut this from a maple board I hand, but could get what I wanted safely from the saw. I was concerned bass (lime) wouldn't be hard enough, but it's been great. As holidays and cold weather reduced the time I could spend in the shop, I made up the rest of her spars and their hardware; as well as framing up and installing the fore and aft access hatches. I also cut the deck strips to their length. Then winter came and stayed until April. Meanwhile I hemmed the rest of her sails.

Triton by Krampus Lieutenant   Posted: 3 days ago
With my boats getting routinely stranded in the middle of nowhere, I felt compelled to commission a rescue vessel and "Triton" was born. "Triton" is a Springer-type tug push boat. With a hull and superstructure consisting of an “Indiana” style command cabin, it was built using a pretty basic birch plywood American kit designed for swimming pool water polo. Kit altered to resemble a fictitious Salvamento Marítimo (Spanish Coast Guard) unit following Salvamento Marítimo’s actual boat markings. Equipment and deck layout inspired on actual Springer tug push boats supporting larger vessels and barges found in US and European ports and rivers. Model built during September – October 2015. Approx. 1/18 scale. Real life boat could be a 30-footer (9.14m) vessel. Equipped with 9v LED navigation lights and sound system. Powered by an HPI Racing 1145 Gt 550 Motor, NiMH 7.4v battery, a 3-bladed 44mm propeller, and a 6-12V 320A RC Ship & Boat R/C Hobby Brushed Motor Speed Controller.

On Public Display by Jerry Todd Lieutenant   Posted: 4 days ago
This would be the first time I ever put something on public display. Well, some drawings went up in a high school art show, but this was certainly the first model. The Port Expo had set up a pool on the dock next to the N.S. Savannah. It was windy, with the wind whipping around the ship every which way. The pool wasn't deep enough for the model to sail, so she just sat there tied off to one end, or down in the lee corner. Not a big deal, but I got to talk to a few folks about her, and that was fun. One of the other modelers told me about the model expo at the Chesapeake Bay Maritime Museum in St Michaels Maryland, in just two weeks! Last time I had been to that museum I went on a 170 foot barkentine, this time the boat would be a little smaller. There was no way I was going to get much work done on the model in the time I had, but there was something I wanted to try out. From the start I had a sail-arm servo set-up to handle the fore-and-aft sails, but I hadn't worked out how it would work. The heads'ls over-lapped and each had two sheets. When the model come-about, the heads'ls needed to be hauled over the stays to the other side. When sailing a real boat, like my 16 footer 'Lydia,' it's the same thing. When you start to come about, you cast-off the jib sheet. As the boat comes across the wind, the jib luffs and comes across mostly on it own. The the new sheet is hauled in and made fast. I wanted to emulate that on the model. My solution was two loose arms with the servo arm between them. The servo pushes one or the other of the loose arms to sheet the heads'ls - but not both. Center the servo and both jib-sheets are slack. It's incredibly simple and works on a single servo. I cobbled the system together in time for St Michaels. We also got one of those pop-up tents, and a folding table. I was taking the Pride of Baltimore model, and the Macedonian hull as well. I was getting into this public display thing. The Model Expo was great. There were a boat-load of modeler's and model there. The pool was much larger, but it was still too shallow, and Stella ran aground after sailing only a few feet. Only Constellation went in the water, but all three models got a lot of attention and I spent a lot of time talking to folks about them. The jib-sheeter worked great, though the servo only had 90° of travel and the Dx6 isn't programmable that way. When I got home, I went right to work on another control mechanism I wanted to try - the sliding-winch.

Deck by GrahamP74 Lieutenant   Posted: 4 days ago
Finished fitting the deck today. Not glued down yet but once it is the hull, deck and bull works can be painted.

Changes in latitudes by Jerry Todd Lieutenant   Posted: 5 days ago
After the sail I tried to figure out how to make the chain plates. The links below the channel are easy enough, but the doubled rod strap that wraps the deadeye was (and is) giving me headaches. I was originally going to bolt the chainplates to the hull, but instead I intend to use round-headed brass wood screws, and I've installed oak strips inside the hull to give them something to bite into. You may recall I'm modeling the ship as she was new, when her portrait was painted in 1856. There's nearly nothing showing what her stern looked like but one etching done of her in dry-dock in Boston in 1859 when she returned from her first cruise. Several painting of her contemporaries show very similar stern ornamentation. I already had the moldings applied based on the drydock drawing, now I made the three rosettes she still carries today - her "constellation of stars." My first attempt was too think and bulky, so I started fresh with a bit of boxwood, and used styrene to apply details. Once done, it got a coat of primer and then I pressed it into clay to make molds for the casting resin. If I had a "Constellation Restaurant" my butter pads would all be molded like this :) Checking into the fashion of the day for depicting stars and things astronomical, I painted the stars gold on a royal blue background. They were then epoxied to the hull and quarter galleries. Soon after, I lost my job of 18 years, and about a year later had to move out of the house and in with my girlfriend. The models literally went on the shelf. She sat on top of a cabinet for nearly a year when I got an invite from the director of Historic Ships Baltimore to bring the model to the Baltimore Port Expo celebrating National Maritime Day.

Progress Mark 2 by Pav403 Commander   Posted: 5 days ago
Hello all, So I've managed to get back to somewhere near where I was last time. The frame work is of a slightly thicker Ply (1/4") The Keel is straight, frames are all 100% level and I've now used balsa block for the Bow and Stern to give the planking a bit more support and to assist in getting a better shape at both ends. Fingers crossed I will have the hull build in the next few weeks, I can then get on with Sanding and filling before applying fiberglass and Resin to make the hull solid. Uploaded a few photos to show where I'm at. Good luck with your builds. Dave.

Controls by Jerry Todd Lieutenant   Posted: 6 days ago
Initially, control of the sails, or rather the yards from which the sails hang, was going to be done with sail-winch servos; one for the yards of the foremast, another for the yards of the main and the mizzen mast combined. Each controlled yard would have two drums, one to take up it's braces as the other payed them out. The controlled yards would be the fore course and tops'l yards, the main course and tops'l yards, and the mizzen coss-jack. This meant the main/mizzen had 6 drums and the fore mast winch had 4. The drums diameter corresponded their yards as each brace was of a different length because of the distance from the centerline that the brace was attached to the yard. Since each brace was being controlled by one winch turning at the same speed, the difference had to be made up in the drum diameter. The flanges separating the drums were compact-discs (CDs). The point where the brace attached to the yard describes part of a circle as the yard is turned. The winch drums too, are circles, but the brace from the yard to the point it turns down to the deck, is a vector. Because of this, both braces are tight when the yard is squared, but as it turns to one side, the take-up side stays taught while the paying out side goes slack. Slack on a winch drum is not a good thing, so some means of taking out any slack has to be devised. At this point I was going to mount springs on posts in the hull. They would maintain tension on the braces all the time. The two winches and a sail-arm servo that would control the heads'ls and driver, were all mounted on a tray, or pallet, that would be screwed to the mechanical deck. One winch had to be mounted higher than the other so the drums and braces wouldn't interfere. The real ship's yards were/are attached to the masts and pivoted on iron "patent trusses." I made my facsimile of them from aluminum with brass #2 screws, nuts, and eye-bolts I bent and threaded from brass rod. The clevis between the yard and the mast is 1/4" aluminum rod drilled through and shaped.