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>> Home > Tags > bulkhead

Wianno Senior by Ron Fleet Admiral!   Posted: 1 day ago
Bulkheads in place.

Cabin detail Pt 1 by RNinMunich Fleet Admiral!   Posted: 6 days ago
I'll second that 👍👍👍 Lucky you didn't use the 'black' sand paper wet! I did once and it permanently stained the wood black, not just surface effect 😡 Since then I only use dry cabinet paper for finishing raw wood in sensitive areas. With your extended bulkheads I'm wondering where you are going to fit 'the works'! Or is this to be a static display model? Whatever, beautiful woodwork, salutations, Doug 😎

Cabin detail Pt 1 by mturpin013 Captain   Posted: 7 days ago
I wanted to try and recreate the detail as per the available photos and drawings that I had so the first thing was to try and make the cabin have walls and a door, so previously I had cut away bulkhead B2 and extended CF2 to the bottom skin and put the door opening in. Now for the actual piece of cabin floor, the entry is slightly strange as there appears to be an inset step from the from the sick bay up into the cockpit but then it is relatively straight forward, it was made from 2mm ply. Planking was something I have never done so a lot of research was done prior to starting. I decided to use a lime wood plank with a black 0.3 black card divider (caulk) all glued with aliphatic adhesive. I found the process quite enjoyable and the results on the test piece for a first attempt were quite pleasing. I then wanted to reproduce the nailing of the planks so I devised a small tool to ensure a consistent pattern Its simply a piece of obeche with four holes, 4 brass pins and a black divider line, this is simply placed on the join line and then tapped with a light hammer and filled with the tip of a black pen. The first attempt looks slightly misaligned but proved the system worked, I have made a more accurate one for the real floor. After the planks were set it was sanded flat which unfortunately leaves the wood grain blackened by the black card dust, however using a plastic eraser it’s easily removed ready for sealing. I thought that the door opening needed some sort of finishing/dressing so I decided to manufacture a mahogany door frame and handrail around the cabin.

New drive Train and Oiler by RNinMunich Fleet Admiral!   Posted: 7 days ago
Most of this actually took place last August / July! Regular readers may have seen that when Dad built this boat in the 60s he put a Taycol Target field motor in it. About 25 years ago I put a Decaperm and 'modern' transistor ESC in her to provide forward and reverse. Performance was sedate to say the least. I have since modified the Taycol (see below) so it can be run forward and reverse and decided to put it in an ancient Billings Boats Danish fish cutter (Gina) that I inherited from an Aunt. The cutter is badly in need of renovation (see pic 1) and the Taycol will be more suited to her performance requirement! On advice from Canabus in Hobart I obtained a Propdrive 2830 1000kV brushless motor, appropriate ESC and a 35mm 3 blade prop from Raboesch. Pic 2 shows the old and new motors. Next step was to trial fit new motor mount, coupling and prop. Pics 3 &4. While doing this it became obvious that a new shaft was in order, as mentioned in last update. Soooo, - appropriate stainless steel rod, thrust washers and set ring were acquired and back to the workshop. After cutting to length to accommodate the new coupling type a 3mm thread was cut a the prop end. At the inboard end I milled recesses for the grub screws in the set ring and the coupling, pics 5 - 7. I don't like to just file(or even mill) flats for the screws cos they have a tendency to slip and work loose😡 Trial fitted the new shaft and found I'd boobed a bit with the measurements and need extra thrust washers to make up the difference. 😲 Pic 8. No sweat, they came in a pack of 50 anyway😊 You can also see in this pic that I decided to fit an oiler pipe while everything was in bits anyway.😉 To solder it on in a cramped space without setting the boat on fire 😡 I packed a wet rag underneath and used a gas Kitchen Torch! Known as a 'Gas Gourmet Burner'. Yep, those handy little gas torches like your Missus uses to melt the brown sugar on her Crème Brûlée!! So do I, delicious 😜😉 The torches are not expensive, small, very handy, refillable with lighter gas and can be adjusted to a very small hot flame. Ideal for this job. See pics 9 & 10. Pic 11 shows the new motor & mount, shaft and coupling all trial fitted after using a brass alignment tool I quickly made up on the lathe. Pic also shows the trial electrical installation after cleaning up the 'machinery compartment' a little and painting with silver Hammerite. A Quickrun BL ESC is sitting in the bottom in one of the trays my Dad originally fitted for the 2 wet cell (very wet!) 6V lead acid batteries. The home made board on the left carries the battery and ESC connectors, main ON/OFF switch with LED, blade fuse holder with a 20A fuse and a green LED which tells me if the fuse is blown! Stuck on the walls (OK Bulkheads!) with so called Servo Tape are a 6 ch Turnigy iA6 2.4Gig RX and the arming switch for the ESC. Battery compartment is sized to fit 2S and 3S hard case LiPos. For trials I can fit my Wattmeter forward of the switchboard and splice it into the battery supply using Tamiya connectors. Might change these to XT60s later if current drain is more than 12 to 15A. All for now, all this was pulled out again preparatory to cosmetics on the hull, decks, cabin roof and walls inside and out. But that's another chapter so, 'Tune in next week, same time same channel when once again it's time for 'WHAT DO YOU MEAN BUCK RODGERS IS APPROACHING!? 😁 Or 'The Saga of the Cabin Roof' 😉 Cheers Doug 😎 BTW: After drilling the shaft tube for the oiler pipe I flushed it out with light machine oil (pumped in from a big syringe) and shoved a few pipe cleaners through (rotating them on the way) to remove any remaining drill swarf!!

Side skins by mturpin013 Captain   Posted: 19 days ago
To enable ease of application of the side skins I decided to raise the building board up to 45 degrees, this allows a better view of the proposed joints Before fitting the bottom skins the side skins have to be trimmed back to the stringers and deck line again using a red pencil to show how much material is being removed as I approach the stringers with the plane. Having done that little job it’s time to shape the skin. I followed the same procedure as I did with the side skins. Again after some time I got a fit I was happy with from the stern to the start of the bow curve. At this point I pinned the skin at the B2,3,4,5 leaving enough material to trim to the bow curve and also trim the cut-out where the skin joins with a butt joint as opposed to the overlap from bow to stern, this is all done prior to bending. Notice the steel shim protecting the chine from being cut as the bottom skin is trimmed for the overlap of the side skin. The bending was done simply by soaking in hot water for 5 - 7 mins and then forming around a suitable size paint tin and left overnight to dry. I first pinned the stern end dry and then epoxied the bow area then followed by more epoxy and progressive pinning towards the stern using brass pins into the bulkheads and smaller pins along the overlap which will be removed when the joint is dry. I made a tempory clamping arrangement at th bow by pinning some scrap ply to the top beck atea to enable clamps to be used, notice the use of a mirror to be able to make sure the joint had come together

Trimming the stringers by mturpin013 Captain   Posted: 26 days ago
Before fitting the skins the chine and gunwhale stringers have to be trimmed to the profile of the bulkheads, this is a time consuming job but is essential to get correct to ensure a good fit of the skins. Also final trimming of the bow k1,2,3 needs to be done now that they are fitted and “a virtual line can be drawn” to show where the skin will eventually sit flush. Using a red pencil to show how close to each bulkhead you have trimmed is a good guide’

1st Gunwhale stringers by Ron Fleet Admiral!   Posted: 1 month ago
This boat looks like it will be very heavy using those plywood bulkheads.

Propshaft and oiler fitting by mturpin013 Captain   Posted: 1 month ago
Propshaft and oiler fitting Now for the fitting of the propshaft, fortunately I have a long series drill that will go through the keel and through the bulkhead B4 into the motor compartment; this went well and came out in the expected place. Next a trial fit of the tube in the keel and into the skeg, again this lined up perfectly and all that needed to be done was to epoxy it into place. First I nearly forgot to fit the oiler system to the prop tube, careful drilling and deburring and making sure no swarf is left in the tube. Finally wrapping a piece of plumber’s PTFE gas tape around the tube to ensure a gas tight fit (oil tight) we are ready to commit the tube to final fixing. Epoxy mixed and applied I put a couple of small wedges in the skeg to stop it moving and a wedge under the oiler to make sure it was horizontal.

Chine stringers by mturpin013 Captain   Posted: 1 month ago
Chine stringers Again first job is to trim all the bulkhead corners so the stringers sit flat against each bulkhead. We can then start to trial fit each side to see what sort of curvature we need. This time I needed a tighter curve (2.5 litre paint tin) so again using a scrap piece chip board I made another jig. The stringers are fitted in the same sequence as the gunwhale stringers that is the first pair are trial pinned, then epoxied and fully pinned. When fully set the second pair can be fitted but this time using clamps only, no pins, to allow for trimming at a later stage. Then allow some time for it to set and check that all this tension in both sets of stringers hasn't caused any twisting or misalignment.

2nd Gunwhale stringers by mturpin013 Captain   Posted: 1 month ago
Now for the more difficult stringer, this one has already been steamed and set in the jig. The outer stringer has to be put on using glue only and clamps, so no nails at all since it has to shaped to the profile of the bulkheads over its entire length hopefully using a jack plane (which don’t like nails). Clamps at the ready and glue in hand and away we go,

1st Gunwhale stringers by mturpin013 Captain   Posted: 1 month ago
First job is to trim all the bulkhead corners so the stringers sit flat against each bulkhead. We can then start to trial fit each side to see what sort of curvature will be needed to steam the stringers prior to final fitting. I decide to make a jig for the stringers to “set” after steaming, I made this jig to accommodate all 4 stringers creating the same curvature, as the minor differences in curve will be flattened out during the clamping process. I used a domestic wallpaper steamer/striper and a piece of 4” plastic drain pipe blocked at both ends with a piece of cloth and steamed for about 20 minutes. The 4 stringers were then placed in the jig and locked into place with wedges and clamps. These were then left for a couple of days to thoroughly dry out After steaming and setting, the stringers were dry pinned to the breast hook on both sides with brass pins, then followed back to the stern drilling and pinning to each stringer to the bulkheads as I went back. Being satisfied with the fit I now removed all the pins and started again from the front and epoxied and pinned each bulkhead on both sides.

Cabin sides and deck supports by jarvo Fleet Admiral!   Posted: 2 months ago
Just a thought mate, when you have completed the bulkheads etc, before fitting the skins, seal the wood with something like Zpoxy, this will make it easier when sealing the rest of the hull. Mark

Cabin sides and deck supports by mturpin013 Captain   Posted: 2 months ago
Before we continue I must mention some fine detail that should have been mentioned in the previous build update and that is the preparation of the cabin sides. Because the bow end of the cabin sides narrow there is a need to score/cut through partially in the places indicated in the build instructions, this is around the cabin side window and enables the side to bend without cracking the external faces, and this also applies to the rear of the cabin sides where it joins B5. The cabin side extensions can also be glued into position as well To continue, having secured all the bulkheads to the keel I can now epoxy the cabin sides to the bulkheads ensuring that the height is maintained side to side and bends smoothly round to the bow and stern. Allowing this to set for a couple of hours I can fit the deck stringers from ¼ x ⅛. These are cut to length to suite the gaps between the bulkheads and glued in place using aliphatic resin glue. I also added some extra support where the cabin side extensions are since its only a butt joint.

deck planks by hammer Fleet Admiral!   Posted: 2 months ago
I was not happy with the hull after finishing the plating. The flat sides very wobbly, & lots of runs & lumps of solder. So I removed the internal supports & the top strake up to it curved. Replaced top strake with 3mm ply fitted new bulkheads & top frame. I started to sand off the excess solder would have taken for ever. Then I remembered seeing my father wipe a lead joint, that was when water pipes where lead. I didn't have a tallow cloth so I took lard from the kitchen. Heat a small section with a pencil blow torch & wipe it clean. All done in 10mins. Glued the plank made before to the sub deck. With a home made gauge mark 3/8th in this will form the scuppers.

Marblehead Sailboat upgraded by Ron Fleet Admiral!   Posted: 2 months ago
My friend bought this sailboat build in 1996 along with 15 other boats at Port Credit, Ontario. My friend Ewald Bengel and his brother Fred, bought the sailboat with R/C equipped, but older Futaba AM but usable. The boat needed structural reinforcements, several new bulkheads, R/R rudder block and repair the rudder. They are not racing the boat intending to keep it at their summer home on the lake. They had me add a Birch plywood deck and hatchway. Progress is being made.