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Robert Foreman

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Everything posted by Robert Foreman

  1. Robert Foreman
    Robin, I'm definately going to use Solartex all over. Most likely just one colour with painted areas for trim (Flair Spectrum paints work well over Solartex). The problem is which colours and how much trim. I have not made a decision yet and it will soon be holding me up. Cheers, Robert
  2. Robert Foreman
    Not much progress recently due to other priorities, however the cowling is now made. I shall fix the cowl in place with magnets eventually. I made the cowling from 9 'C' shaped pieces which I glued together in-situ, then carved and sanded to shape.
  3. Robert Foreman

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  4. Robert Foreman

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  5. Robert Foreman
    The plan calls for 3/32 balsa for the windscreen frame. I couldn't get the balsa to bend without cracking even when wetted. So I decided to laminate it with 1/32 plywood and 1/16 balsa. Here's the plywood layer: and here's the finnished windscreen frame with the balsa layer. I've also fitted the side window frames.
  6. Robert Foreman

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  7. Robert Foreman

    Robert Foreman posted a gallery image in Member Albums

  8. Robert Foreman
    Nose is now sanded to shape.
  9. Robert Foreman

    Robert Foreman posted a gallery image in Member Albums

  10. Robert Foreman
    Building up the nose. There's going to be a lot carving/sanding to do.
  11. Robert Foreman

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  12. Robert Foreman
    I've had similar issues with Nicd/Nimh cells. One reason for the descrepancy could be what cut-off voltage your charger uses to terminate the discharge. If this is higher than what the manufacturer of the cells has assumed then your charger will show a lower capacity. On some chargers you can set the cut-off yourself whilst on others it is pre-set. I think 0.9v per cell is a typical value for Ni cells.
  13. Robert Foreman
    The fuselage sides are covered with sheeting at the front. Those wheels are 5" diameter. Edited By Robert Foreman on 17/04/2012 20:00:06
  14. Robert Foreman
    Mike, I have not yet looked into what length rubber bands I'll need for the wing. It looks like your's have some joining arrangement to make shorter bands long enough. Is this because you could not source long enough bands ? Also, your tailplane seems to permanently fixed or screwed on, whereas the plans show rubber band attachment ? Robert.
  15. Robert Foreman

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  16. Robert Foreman
    The underside of the fuselage is in-filled with balsa sheet. The undercarriage uses 3 pieces of 8 SWG wire. I tried to soft solder a trial joint first but could not get the solder to flow properly with my 75W soldering iron, so I ended up using silver solder and a blow lamp. Not perfect but it should look ok once painted. Here's the rear undercarriage mounting.
  17. Robert Foreman
    Rex, The white stuff is just melamine covered chipboard as sold in B&Q etc for shelving. The benefits of it are that it's available in several widths and flat and true. The downside is that you can't push pins in by hand - you need a small hammer. I've used a piece of it for the SLEC fuselage jig, where I've covered it with the red squared sticky stuff that SLEC supply. Robert.
  18. Robert Foreman
    Neither the BB or KK plans make much sense regarding the sub-fin. In the end I choose to use a 3/16" core with spruce to strenghten and provide anchorage for the tail wheel wire. Then I covered the core both sides with more 3/16" and finally 1/16" sheet to make up the required thickness. Here's the finnished item.
  19. Robert Foreman
    Thanks for the comments chaps. I've got a long way to go yet before I make a decision of servo placement. My gut feel at the moment is that there's a lot of weight in the wings and the front fuselage with the back end relatively lightly built. Here's some shots of the fuselage. Former cut out for fuel tank, snake installed for throttle. I've angled the engine bearers to produce side thrust so that the propellor shaft ends up central at the front. Looks a log bigger with the stringers added.
  20. Robert Foreman
    Next up is the stabiliser. This has a 3 ft wing span. I found it easier to cut the ribs as rectangles and then sand to shape after the whole thing is assembled. In this shot the elevator has not been fully seperated into two halves. As the elevator is so long and seems to twist easily I have not decided yet whether to use 1 servo or 2 servos for the elevator. Either way the mini servo(s) will be built into the tailplane. The rudder servo will be built into the fin.
  21. Robert Foreman
    I purchased a set of Ben Buckle plans for the Falcon. The plans come on 3 sheets, each over 4ft long. I've also got an A3 version of the original KK plans. So my Falcon will be a hybrid. I started building the Falcon about 7 months ago. I started with the wings. To avoid spoiling the plans I drew the spar positions on the building board and spaced the ribs out evenly. I produced the ribs using the 'sandwich' method with the ply centre ribs as the template. I had to produce two sets of ribs as the sandwich was too wide to handle otherwise. The two halves of the wing are joined by a complex arrangement of joinery. Here's the left wing: And here's the right wing: And here they are joined. I've yet to sheet the centre section - it seems a shame to hide all that work.
  22. Robert Foreman

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  23. Robert Foreman

    Robert Foreman posted a gallery image in Member Albums

  24. Robert Foreman

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  25. Robert Foreman

    Robert Foreman posted a gallery image in Member Albums

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