Keith Evans 3
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Everything posted by Keith Evans 3
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Balsa supplies should be arriving tomorrow . In the meantime I'll carry on with the elevator .I spot glued the elevator to the T.E. of the main wing with balsa cement .I find this works the best for me in this application . I've protected them both with masking tape and strips of 1/16" balsa to make sure I do not plane into the ribs and cap strips . After a pile of lovely shavings and some swipes with my Permagrit block I've ended up with a nicely matched pair . The next step will be to chamfer the L.E. edge of the whole elevator assembly to arrive at the 3/16" reflex required . Only when this is done will I separate the elevator out .The elevator will then be shaped to allow for hinging . Later on I will glue the outer portions to the main wing .
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Hi JM. Thanks for the link . I now have something to look forward to . When , I do not know but I can dream . Started on the T.E.'s I've used a cardboard template to arrive at the true shape for it , particularly around the main spar area . As you can see I'm having to be a bit inventive . I'm now out of 1/16" sheet .
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As I have decided to use a commercial engine mount and to mount the engine on its side I did not require the beams themselves apart for alignment purposes . I've made up a sacrificial jig as shown out of 1/2" square balsa . As I have made another solid engine bulkhead I did not fancy making "beam " holes and re filling them where the captive nuts and bolts will be positioned .So the balsa beams will act as a good guide for alignment along with the guide lines marked on the ply doublers . What I did not want was everything being square on the fuselage but not with the wing itself . For those who may go down the full beam mounting route be aware that all the beam cut outs need to be checked ! ! The jig is only glued to one former and rigidly held in place .The rear former will be removed and assembled into the wing . The fuselage will be constructed by inserting the jig into the wing from the front ,engaging with the former now placed into the wing and the fuselage sides slid over the wing .Again a lot of alignment marks will be made . The balsa jig parts in the tank bay will be removed at a later date . Note ,as I have modified the fuselage in certain areas I have been modifying the supplied formers to suit . This build takes a lot of checking and re checking .
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Started on the fuselage today . Joining the supplied parts before modifying . The next shows the shortened nose cut at the down thrust angle and trimmed bottom edge . I've marked out the doublers onto 1/16" ply .As there is a sheet of 1/16" ply for laser cut ply redundant pivot reinforcement ribs still included in the short kit pack ,it would have been better to have included the doublers instead . Marked out the former positions . Drying out under weights .! !
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