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IMAC JTEC 2.7m Extra 300CS

Discussion in 'Giant / Scale Scratch and Kit Build Threads' started by Alky6, Dec 22, 2014.

   
  1. IMAC FANATIC

    IMAC FANATIC 40% happier than most folks.

    That's the conundrum of this hobby, gotta pay to play.
    Keep it going Paul, practice sessions are on the horizon !
     
    Alky6 likes this.
  2. Alky6

    Alky6 150cc

    Can't be soon enough!
     
  3. Alky6

    Alky6 150cc

    Looking for the "that sucks" button, but can't find one. What is driving the change?
     
  4. Jetpainter

    Jetpainter 640cc Uber Pimp

    I have a small auto body shop and when you combine the insurance companies steering work to their contracted shops and the sudden change in the last few years in the shall we say demographics of the area it adds up to a sucky few months.
     
  5. Alky6

    Alky6 150cc

    That's a bummer. Hope things improve for you soon!
     
    Jetpainter likes this.
  6. Alky6

    Alky6 150cc

    Wings:
    LE TE of ailerons glued on. Hinge holes drilled, servo boxes and control arm supports cut out and glued in place. Need to bevel the hinge line and finish capping all the surfaces. I did make a pretty good boo boo that resulted in an aweful lot of cussing. Didn't realize it until I started drilling hinge holes and "somehow" a couple of the hinges lined right up with the servo... Apparently, on the second wing I cut out the servo boxes on the wrong side of the line. At least they were on the correct side of the wing. Hey, they were laying together, I just moved them to the same side of the line. Need to remember mirror image! LOL. Cut them out and moved over, used the pieces I removed as fillers for the other side. See pics below. Also, edge of outside of JTEC servo boxes were set at 2" from edge of TE. Seems like a 2 1/2" turnbuckle should be just right. Control horns were spotted for 1" servo arms.

    Horizontal Stabs and Rudder:
    Control arm supports cut out and glued; spotted for 1" servo arms on elevator and 1 1/2" arm on rudder.

    Fuse:
    Glued a couple 3/8" balsa square under cross-bracing of fuse under the hatch for more rigidity.
    Warning: gratuitous clamp porn for @IMAC FANATIC included
    image.jpg image.jpg image.jpg image.jpg image.jpg image.jpg image.jpg image.jpg image.jpg image.jpg
     
  7. IMAC FANATIC

    IMAC FANATIC 40% happier than most folks.

    Balsa... balsa... balsa... whoa ! Clamps lovely CLAMPS.
    Good recovery on the error too. Looks beautiful paul, keep up the excellent work.
     
    Alky6 likes this.
  8. Alky6

    Alky6 150cc

    Travelling this week for work. But I did get some "real work" accomplished last weekend.
    Wheel pants are mounted. Cowl Ring is glued in. Throttle servo located in bottom of motor box. Thanks to @Terryscustom for his great Viper build thread on flipping the DA carb arm around! Started lining out the canopy on the hatch and mock up of instrument panels and pilot. Trimmed the hatch back - need to finish off edge of hatch under canopy. Also, started repair on the cowl that UPS damaged. I opted for the 330 cowl as a replacement, but it doesn't have quite enough room for my 90mm drop headers in the front. So going back to the 300 cowl. If I want to use the 330 cowl in the future, all I need to do is a fab up a custom drop header for the forward cylinder. Maybe a future project...

    Still contemplating how to finish of the inside of the hatch. Don't really want to paint it, but if I do, I think it would lend itself to having to paint inside the fuse as well. Not really excited to do all that. What do you all do about painting the hatch under the canopy? I want to leave the bottom of it open for visual inspection purposes and not adding needless weight.



    image.jpg image.jpg image.jpg image.jpg image.jpg image.jpg image.jpg image.jpg
     
    IMAC FANATIC likes this.
  9. IMAC FANATIC

    IMAC FANATIC 40% happier than most folks.

    Painting the fuse inside is the one thing I semi regret, it looks great but added almost a pound. Suggest sticking to old school rules and using thinned epoxy to seal firewall and tunnel areas only.That said, painting really adds to a finished look on the inspection bays when assembled and on the flight line.
     
    Alky6 likes this.
  10. yakken

    yakken 100cc

    830
    877
    93
    I am finishing mine up uploadfromtaptalk1453509220464.jpg uploadfromtaptalk1453509228971.jpg
     
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