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    Modified Stiletto project
    by jbkiwi ๐Ÿ‡ณ๐Ÿ‡ฟ ( Fleet Admiral)
    ๐Ÿ“ฃ










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    5 Posts 22 Comments 0 Photos 24 Likes
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    ๐Ÿ“ Modified Stiletto project
    6 days ago by jbkiwi ( Fleet Admiral)
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    Second side on now,-once set it can be trimmed and flipped over on the jig. Might have to make a few mods to the jig to support it, now the sheets are on.
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    ๐Ÿ’ฌ Re: Modified Stiletto project
    5 days ago by stevedownunder ( Commander)
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    Hi JB,
    I did wonder if the sheet was a bit short. ๐Ÿ˜

    Cheers,
    Stephen.
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    ๐Ÿ’ฌ Re: Modified Stiletto project
    5 days ago by jbkiwi ( Fleet Admiral)
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    Hi Steve, gap's there because they were short on one end๐Ÿ˜ - balsa sheets were only 3ft (US Bud Nosen models) as the model shop didn't have any 1m lengths, - (would have been ideal,- boat's 38-1/2". They are usually in 3ft or 900mm lengths for some reason, (OZ stuff is 900mm). There were a couple of 4ftx3" lengths which I grabbed, (seldom see them) but I would have needed more of those. I'll just fill the gap with a couple of scrap pieces,- easy to do.

    Balsa gets scarce at times, between shipments, so you have to grab what you can when it's there. I never throw any balsa bits away.

    JB
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    ๐Ÿ’ฌ Re: Modified Stiletto project
    6 days ago by stevedownunder ( Commander)
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    Making great progress JB,

    I am wondering why is there a small area left open in the bow where the balsa doesn't quite go all the way forward?

    Cheers,
    Stephen.
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    ๐Ÿ“ Modified Stiletto project
    7 days ago by jbkiwi ( Fleet Admiral)
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    I've finished the framing for now, and have started the planking. Started by gluing a 3mmx3mm spruce strip down the center of the keel, to form the 'rebate' for the 2.5mm balsa planking. Next thing was to cut the 100mm wide balsa sheets roughly to shape, and butt join an extra 40mm on to cover the width. Chine stringers were also bevelled to suit the bulkhead/bottom angles

    Airplane guys will probably know this, as it's usually a wing sheeting method.

    Sheets were joined by 1. butting them up side to side tightly, 2. taping the joint with masking tape pressed down firmly, 3. opening the joint and filling the V with PVA glue, 4. closing it and placing the sheets tape down on a flat surface, 5. wiping off the excess with a damp sponge, 6. weighting the joint along the entire length and leaving it to set thoroughly for about 12 hrs. When dry (test with a sharp modelling knife pricked into the glue) remove the tape and you are ready. Be gentle with it though. Once applied to the frame/cabin etc, you can reinforce the join on the inside with thin ply, glass tape, or cross grain balsa strips. If you are glassing the hull, it's still a good idea to reinforce the join.

    Using a liberal bead of balsa glue on all areas, the sheeting on the first side was applied and clamped, and a few pins used in un-clampable areas. Sitting quite nicely so far, (these hulls having developable surfaces, like a lot of older models- ie- no steaming required,) so will probably be attacking the other side tomorrow.
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    ๐Ÿ’ฌ Re: Modified Stiletto project
    5 days ago by philcaretaker ( Commander)
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    Jees !- she look a real beast JB !!!
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    ๐Ÿ’ฌ Re: Modified Stiletto project
    6 days ago by jbkiwi ( Fleet Admiral)
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    True Graham ๐Ÿ˜ If I want any more, I'll have to visit another Warehouse branch, as I've cleaned the local one out ๐Ÿ˜‚ - lucky they don't have a 2 item limit lol. Only need to buy them once, and they are there for life.๐Ÿ‘

    JB
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    ๐Ÿ’ฌ Re: Modified Stiletto project
    6 days ago by jbkiwi ( Fleet Admiral)
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    Hi Mike, -see reply to 200tdi

    JB
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    ๐Ÿ’ฌ Re: Modified Stiletto project
    6 days ago by jbkiwi ( Fleet Admiral)
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    Re - why not ply, nothing wrong with balsa for sheeting/planking, as it's lighter, probably a lot cheaper than quality thin ply (aircraft grade is worth a kidney- if you could find it) bends in a uniform way, glues well and has room to sand out any irregularities. Once f/glassed, and sealed on the inside, it's as strong as it needs to be for a model. If you are glassing a model, the basic layer doesn't matter,- could even be thick stiff card, - the glass and frame is where the strength is. Unless you intend rock bashing, there's not much point building a brick, just needs more power to compensate.

    The green boat in the pic was 2mm balsa with only glass tissue (deck as well), and with the necessary parts (motor mount area etc) strengthened with extra layers. Boat was built in the early 70s and had an O.S .40 motor, and was solid as a rock and quite light. I've never used ply for a hull,-only decks (not f/glassed).

    JB
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    ๐Ÿ’ฌ Re: Modified Stiletto project
    6 days ago by Graham93 ( Rear Admiral)
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    Starting to take shape ๐Ÿ‘. I pity other modellers in NZ, there must now be a shortage of clamps for sale in the shops! ๐Ÿ˜‚๐Ÿ˜‚

    Graham93
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    ๐Ÿ’ฌ Re: Modified Stiletto project
    7 days ago by mturpin013 ( Vice Admiral)
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    As 200tdi why not ply and then glass ?
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    ๐Ÿ’ฌ Re: Modified Stiletto project
    7 days ago by 200TDi ( Petty Officer 2nd Class)
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    Why balsa sheet instead of ply?
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    ๐Ÿ“ Modified Stiletto project
    10 days ago by jbkiwi ( Fleet Admiral)
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    Chine stringers now glued in place. Will possibly have balsa top laminations for finishing if needed. I usually leave the stringer notches a bit larger in places to allow for 'flow' alignment. Usually get a few waves in the stringers when re-modelling a hull, (even doing them from a plan) I just pack the gaps later with balsa glued in and trimmed.

    You can run the stringers over the frames/bulkheads which will allow water to drain easier (no need for limbers) - runs straight to the transom from anywhere. Good method for open boats with frames, which will be subjected to water inside, as you can leave floorboards in and just tip the boat up to drain. Notching stringers is a probably a bit easier for models, as they don't usually get any water ingress.
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    ๐Ÿ’ฌ Re: Modified Stiletto project
    10 days ago by pressonreguardless ( Lieutenant Commander)
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    Thans for mentioning limber holes.
    I cut them in on my Typhoon but forgot on my 44.
    You made some very good points.
    Trev
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    ๐Ÿ“ Modified Stiletto project
    11 days ago by jbkiwi ( Fleet Admiral)
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    The basic frame (keel and bulkheads) now flipped over, lined up on the jig again, with the necessary bulkheads packed for the deck sheer to keep it all in shape. The bulkheads are clamped to the jig to keep it all solid. Started fitting the bottom stringers, which once planked will make the hull easier to work on while fitting certain internals. Side and gunwale stringers will be done once any internal work (motor, shaft, rudder, floors etc) is done.

    The hull has been re designed, as balsa planks and f/glass will be used, rather than ply, making it lighter but needing stringers all round. The original only had chine and gunwale stringers, (the ply replacing the intermediate stringers.) Also, the cabin construction was part of the framing.
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    ๐Ÿ’ฌ Re: Modified Stiletto project
    11 days ago by pressonreguardless ( Lieutenant Commander)
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    Hi JB,
    Thanks for the info on the glues and resin. I always like to learn what others are using.
    Who says you can't teach an old Dog New Tricks๐Ÿ˜‚๐Ÿคฃ๐Ÿ˜‚.
    I have to construct a jig with yours as a guide for my next build, Thanks!
    Your Stiletto is coming along nicely๐Ÿ‘๐Ÿ‘
    Trev
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    ๐Ÿ’ฌ Re: Modified Stiletto project
    11 days ago by jbkiwi ( Fleet Admiral)
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    Hi Trev, the jig makes things a piece of cake. I'm bound to find a snag somewhere, but so did the Wright brothers๐Ÿ˜๐Ÿ˜. I use a mixture of glues for different situations, but mainly Elmers 'Glue All' (sort of super PVA) 5 min epoxy and Loctite superglue gel. Once everything's done, I go round all the joints with either UHU or balsa glue to seal any gaps.

    Elmers is not totally waterproof, but once the planking is done, the insides of all my boats have a timber preservative resin (International Everdure, or a local equivalent) poured in and painted around, which totally waterproofs everything. has the consistency of water, so gets in everywhere.
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    ๐Ÿ’ฌ Re: Modified Stiletto project
    11 days ago by pressonreguardless ( Lieutenant Commander)
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    Looking Good, JB
    Your building jig certainty facilitates the build.
    What glue are you using?
    Trev
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    ๐Ÿ’ฌ Re: Modified Stiletto project
    11 days ago by Graham93 ( Rear Admiral)
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    Good progress JB ๐Ÿ‘ Itโ€™s going to be interesting to see how the new building jig works out.

    Graham93
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    ๐Ÿ“ Modified Stiletto project
    13 days ago by jbkiwi ( Fleet Admiral)
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    Making a bit of a start on my stretched Stiletto (more a Stilapier) at the moment, as it had been put aside while I had a play with a surface drive to fit to it, if I could get one working (see under surface drive experiment, in forum). I've shelved that idea till I can find a suitable universal for it, and have decided to use a modified cable drive instead (see under 'converting a cable drive to a standard drive', in forum) I wanted to settle on the drive type before starting fully, to make installation easier.

    The Stiletto has been stretched to 38 1/2" by blowing the A4 sized drawings up to AO paper size. I've left out the usual internal locking structure so as to create more room and ease of access to the internals, instead, the whole cabin will lift off, rather than a few 'lids'. All the new positions have been worked out using top and bottom datum lines (pic 1). The deck camber has been changed but the deck sheer left in. A few other mods will be made as things progress.

    I started by cutting out the keel, breast hook and new ply bulkheads, then cut the centers out of the bulkheads notched them for the stringers and reinforced them. I made a new universal building jig (under model framing jig, in forum) to hold everything in place, (right side up and upside down), and set everything up on it. Glued all the bulkheads bar the transom to the keel, (keel has shaft tube slot previously built in by cutting the keel on the appropriate angle, separating the 2 pieces by a shaft tube diam, trenching 2 side plates to suit the shaft tube angle and diam, and gluing/clamping them on using the building jig to hold them flat and straight.

    I've made a cut-out for the motor in bulkhead 3, and bent the cable drive to suit. A motor mounting plate will be made later. Cable drive will have a V brace made to suit once the angle has been sorted for prop clearance etc.

    Getting hard to find some modelling supplies (namely spruce strips for stringers and balsa) now so there might be some slow patches in the building.
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    ๐Ÿ’ฌ Re: Modified Stiletto project
    11 days ago by Dampfgerd ( Petty Officer 2nd Class)
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    The Lesro Stillet and the Rapier are different kits.
    I think Lesro uses several kits for the same Hull
    The Lesro Arrow has also the same Hull
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    ๐Ÿ’ฌ Re: Modified Stiletto project
    13 days ago by jbkiwi ( Fleet Admiral)
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    Re -Rapier? Quite possibly, not too sure if the L to W is in the same proportions as the Stiletto, - the only visible difference looks to be in the cabin.

    JB
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    ๐Ÿ’ฌ Re: Modified Stiletto project
    13 days ago by Steveg171 ( Petty Officer 1st Class)
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    It sure is. I wanted a Rapier, was directed to one for sale and was confused when a much smaller than expected crate arrived. The Rapier turned out to be a Stiletto lol. Size in this case did matter, always ask !!!!
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    ๐Ÿ’ฌ Re: Modified Stiletto project
    13 days ago by jacko ( Lieutenant Commander)
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    i'm liking the build board ๐Ÿ‘๐Ÿ‘
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    ๐Ÿ’ฌ Re: Modified Stiletto project
    13 days ago by 200TDi ( Petty Officer 2nd Class)
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    isn't a 39" Stiletto just a Rapier?
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