FreekS
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Dear Piet, just on the off chance you missed it, the KXVIII anchor is clearly visible on the bottom of the dry dock. Yes KXVIII did not have a keel anchor, or had two traditional anchors in the bow. Freek
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Dear Piet, here is a picture of the anchor of the KXVIII. Looks very similar to what you found for O-19 Freek http://i40.photobucket.com/albums/e241/Freek_Schepers/c12ababe34f0ec43350357d71ff86168_zpsdee9b676.jpg
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Thanks all for your kind words! Yesterday I managed to stiffen the pressure hull by inserting wooden blocks in-between the frames. This will help the planking of the hull - without taking away from the room inside the boat. The boat seems straight and next step is for me to verify the accuracy of the frames with a plank, and to start drawing the complex bow and stern pieces - which will be the end-points for the planking. Also late last night we performed the age old ceremony of fixing an old coin in the keel. We selected a 1 Dutch cent coin (no longer in use since the euro) from my birth-year and with the image of Queen Juliana on it. This tradition hopefully assures 'een behouden vaart' - safe travels over the high sees.
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Hi John, I plan to install a bayonet closure roughly 1/3rd distance from the stern. All the technical pieces will then be mounted on a rack attached to the stern part and pulled out of the front. It will be tricky to mount the motor and propellor assembly and the pushrods used to operate the dive planes and rudder. So the whole hull will be dry and waterproof. This is a fairly well known way to assure waterproofness (though I have not used it before). The main challenge will be to find space for all the technical stuff (receiver, speed controller, motor and servo motors, batteries, pump for dive tank (waterproof bag) and electronics to control it all). But first the hull - next to the waterproof cigar I'm making now the boat has a flood able deck, a single torpedo tube and a conning "tower" with periscopes and masts. Freek
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Hello all, This is my first build log on the forum, and my third ship overall. The first was a Dutch Navy contemporary frigate Zr Ms de Zeven Provincien, and the second a world war 2 submarine, Hr Ms K-XVIII. Both are radio controlled and both hulls were made with the bread and butter method. That worked out very well for these larger vessels but now I intend to build a much smaller sub and will need to be much more economical with space. So this will be my first hull built out of wood with planks on ribs. Hr Ms O-1 was a Holland-class submarine built as a private venture by Wilton Feijenoord and sold to the Dutch Navy when it has passed some trials set as condition for her purchase. In subsequent exercises she proved very capable to defeat the then surface ships of the Dutch Navy. She patrolled the North Sea during WW1 (but thankfully the Netherlands remained neutral throughout that conflict). The Holland boats have beautiful lines, and I was hooked when I saw a working model of an Austrian Holland class at a meeting in Lichtenstein some years back. Please feel free to comment and advise as I have some experience, but little in this kind of hull building especially. Groeten, Freek
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Piet, It looks very nice! On my KXVIII I did the reverse from you, I did not create plating, but did "suggest" where the plates are through the application of over 5000 rivets. Like you, many pictures show the plating, but it's still guesswork especially as these ships were partly welded, and the riveted joints covered in paint ( through constant "tjetten"). The rivets were offered by a forum member and were bought on a sheet, easy to cut and apply, and the subsequent paint fixes them in place. Still working on my torpedoes, I'll get a video as soon as they work every time. Love your build! Freek
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Best Piet, I built the rotation torpedo tubes from Aluminium tubing. - two servos operate Bowden cables which rotated the doors open (sigh) and then rotate the mount - A spring loaded pin perpendicular to the tubes locks the torpedo in place, and when the mount rotates 90 degrees it hits a stopper which withdraws the pin and unlocks the torpedo. The torpedo itself has a rubber motor and its prop is blocked by a small pin in the rear of the tube. - the torpedo is then ejected through a small elastic band in the slot on top of the tube - the ejection process then results in unblocking the torpedo and the rubber motor starts I've gotten the rubber motor to drive the torpedo (at scale 1:50) about 2 meters, at good speed. Crude, and I'm still optimizing! Freek
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Very nicely made functional front dive planes! She really is the older brother of my KXVIII, which had fixed front dive planes! You've even pointed out a build error I made, I swivel my deck torpedo doors upwards and you wrote they actually open downwards. That's pretty impressive research you've done! With all the functional features you consider, retractable dive planes, torpedo doors that open and the 40 mm coming out of their waterproof buns, are you going to make those function electrically with a few servos? Or manually with a fingernail? Fantastic to see such a nice build of a Dutch sub happening overseas! Freek
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On the deck torpedo tubes, strange is that www.dutchsubmarines.com mentioned 4 bow and 4 rear tubes, but not decktubes. Ive seen many foto's of the open dektorpedobuizen doors, and also of O20 having deck tubes, but I wonder if O19 had them during her career. It is known that two of the K-XIV class were refitted in US and THE decktubes were removed then. dont think O19 had such à refit in US. i enjoy following the build, and ive just managed to make THE decktubes of my KXVIII model functional! Freek
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Hi Piet, glad the dinghie drawing worked out! Fred has some amazing sub models! On the deck bulkheads, have you considered shaping the ones in the middle to also be the bulkheads for the Sail? Also in front of the sail there was a pair of under deck torpedo tubes, well visible on some of the O19 pics.i If you want to have the torpedo doors open then you might consider not having bulkheads there! Fantastic build, it already has the distinctive Dutch look! Freek
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Beset Piet As another Dutchman fascinated with old subs, I am glad I found your pages! Over the last 4 years I have built (and sailed) a 1:50 model of the predecessor of your boat, the KXVIII. This boat also had a great history though more prewar. I will follow your build with interest! Freek http://www.rcgroups.com/forums/showthread.php?t=1736478&highlight=k+xviii
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