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Thread: bbs428 Build

  1. #21

    Join Date
    Jan 2018
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    Vernon, BC
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    22

    Default Re: bbs428 Build

    I like the longer stringer that ramps up the vertical stab. Where you trying to create an off-set that would reduce the need for a fixed trim tab? I'm rebuilding a model III and would like to eliminate any tacky add-on ... but the tail surfaces are all single plate on the III, so it would be tricky to make it streamlined instead of kinky. Anyone tried this fix?

  2. #22
    bbs428's Avatar
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    Jan 2015
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    Webb City, MO
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    182

    Default Re: bbs428 Build

    Thanks for reading my thread and commenting!

    No, tbh I wasn't trying to reduce the need for the trim tab at all. I will be adding a small fixed trim tab block on
    the lower side of the rudder that I saw on one of the builds. Small, simple and effective. I will fabricate some
    threaded inserts so I can experiment with the size of the block easier.

    My build incorporates most of the series 7 mods. Larger elevator, longer motor mount and smooth cowl among
    many other minor changes. This tail transition offered a cleaner look and it ties the tail in better imho.
    I have read from previous build threads that the base of the tail was a bit tricky to cover. So I hope this helps, not
    aggravates that.
    For lack of a better term I'll call it the razorback mod, lol. Looks a lot better imho and is very light and strong.
    Somebody said that carrier pilots were the best in the world, and they must be or there wouldn't be any of them left alive. Ernie Pyle

    Brett Butler
    Building: Model 5 Outback with 7 mods

  3. #23
    bbs428's Avatar
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    Jan 2015
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    Webb City, MO
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    Default Re: bbs428 Build

    BRRRRRR it's cold! 7 deg atm.

    Not to anxious to work out in the non-heated shop today. But prior to the deep freeze, we were able
    to get the wings drilled and all our measurements remained constant, yay! Nerve racking to say the least.
    I'm glad That part is done! Now we need some warm weather to attach the chrome-moly reinforcements
    to the spars and set our butt rib and #1 rib in place. Thinking about the epoxy under 32 deg.
    I need to see 50+ deg for me to be comfortable with the glue.

    Received an AE three stack relay board, Garmin G3X gap 26 pitot tube/tubing kit and GSA 28 connector kits.
    The relay will be for the "hat" switch for trim and a third for a spare.
    I'm still looking at nav/pos/strob wing lights, and wing mounted taxi/wigwag lights. Not sure which way to go.
    No night flying for me these days but I would like the plane to be night flight legal.
    Any Suggestions?

    Working on the paint scheme was fun. It was nice to sit in the warmth of the fire and color away. Stumbled
    onto a distinct color scheme that I liked. I was going to plagiarize the Legend super cub scheme that I
    absolutely love but it irked me that I was going to copy another plane. Last thing I wanted to hear was there's
    the "little legend" or god forbid a "There's the "mini legend"... but only in his own own mind",
    no matter how true/untrue the statement was! lol.

    Still playing around with some ideas. This one is a little busy but fun.
    My favorite colors from my favorite flag!

    wing settup5.jpgparts delivery ac spruce.jpgresized americub.jpgpaint scheme.jpg
    Somebody said that carrier pilots were the best in the world, and they must be or there wouldn't be any of them left alive. Ernie Pyle

    Brett Butler
    Building: Model 5 Outback with 7 mods

  4. #24
    Senior Member efwd's Avatar
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    Jun 2015
    Location
    Yorba Linda, CA
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    2,025

    Default Re: bbs428 Build

    That paint would be awesome.
    Eddie Forward
    Building
    SS7, 912iS, Garmin G3X

  5. #25
    bbs428's Avatar
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    Jan 2015
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    Webb City, MO
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    182

    Default Re: bbs428 Build

    With Oshkosh behind me I'm back in the shop working. Long hiatus with a bathroom remodel and some leaky water pipes but that's all done. Thank goodness!

    Nice to finally meet a lot of you at Airventure. I hope to see you all again soon but this time flying my own!!

    Landing gear is on order from Grove. Wing tip landing lights on the way. Got a great deal on my Pulsar AeroLEDs Nav/Pos/Strobe lights and paint from Wicks also at Airventure.

    The GMU-11 is temp. mounted. Re-attached the butt ribs .040 higher than the wing. The reinforcement strips for the windscreen attachment to the outside. Got it wrong on the first try!
    Fitted the wing tip reinforcing strips. Wing butts are done until final paint. Used 1/8th balsa sheet to do the close-outs. Fuel placards came out nice. False ribs are in and varnished.

    Leading edge cuffs are done and top wing ribs a filled in and smoothed.

    The AOA probe is a Gap-26 from Garmin. Fabricated the base and two port attachments from lite ply and scrap aluminum.

    One of our members gave me this gem - Carbon fiber reinforcement rods are practice arrows. Cheaper to cut them up than to order pure carbon rod. Two bays per arrow. They are insurance that the trailing edge does not get pull
    ed in during fabric shrinking when covering the wing. Thank you!
    Doors and wingtips are ready to massaged into place.
    Question - How does that top door trim panel under the wing get trimmed out onto the tabs? I can't seem to find a pic that spells it out for me.

    I hope to be fabricating the flaperon system next week.


    20190822_213736.jpg20190822_213801.jpg20190822_212940.jpg20190820_170243.jpg
    20190818_123014.jpg20190822_213033.jpg
    Somebody said that carrier pilots were the best in the world, and they must be or there wouldn't be any of them left alive. Ernie Pyle

    Brett Butler
    Building: Model 5 Outback with 7 mods

  6. #26
    bbs428's Avatar
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    Jan 2015
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    Webb City, MO
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    182

    Default Re: bbs428 Build

    Working a lot but progress is slow. Cain't help myself but to do simple tasks over and over till I'm satisfied. Argg.

    The wing butt closeouts have been front and center. Knowing it will be easily noticed by me and others for the rest of
    it's life, I'm trying to make it all look as good as I can.

    I decided to use #6 truss head screws and some original fuel placard screws to have the butt ribs removable if needed.
    Spent way to much time getting it all squared away but it's done. I might get some small bolts for the door hinge tab
    but as it is, it's solid.

    Had to do some final bubble door trimming and enlargement/massage of the holes. I initially drilled the doors last winter.
    Well it's 90 deg. in the shop and the holes were off by a skosh. By gosh the door does grow when warm! Go figure...
    Used my 6 inch cut off wheel to give the doors the needed clearance. Used my dremel and a small fine diamond abrasive
    bit to enlarge the holes. Did not use any acrylic drill bits during the fabrication. To risky imho.

    My 1994 build book had me cut my tail excess panel at the bottom and the top is binding. Noticed at Oshkosh that all the
    planes had the cut at the top... I see why now. I have to shrink the metal a bit around the green dot to get it to conform
    properly or remake the panel. And so it goes...

    butt rib close out1.jpgBubble door.jpgBubble door1.jpgtail access panel.jpg


    Anyways Its time to move on from this exercise to another. Wing tips and flaperons are next. Then engine, avionics, wiring,
    cowl, windscreen and turtle back. I figure I'll get it all put together within reason, work out the bugs, disassemble, cover
    and paint. Sounds all good but who knows how it will all come together.
    One bite at a time... Lol.
    Somebody said that carrier pilots were the best in the world, and they must be or there wouldn't be any of them left alive. Ernie Pyle

    Brett Butler
    Building: Model 5 Outback with 7 mods

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