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  1. I

    Longeron Bending Jig

    Wow, that suggestion and PDF was above and beyond. Last batch of upgrade parts came today. I hope to start printing this week. Hopefully, I can get some results in the next few weeks (sorry, I’m not anywhere near my shop). The premise of proppastie’s design was more of what I had in mind for...
  2. I

    Longeron Bending Jig

    I've been trying to think about how to bend longerons for a scratch-built Zenith 601HD (trying very slowly to guide long-term chapter growth). My friend with an RV-12 project did not opt for the longeron bending dies (https://bullerent.com/product/longeron-bending-die-set/). We later regretted...
  3. I

    Warbler

    I am currently home but not able to build. I spent a chunk of time replacing our old fluorescents with LEDs in the shop, so my dad doesn’t have to stand on a ladder. After all, I need his cheap labor since I’m not able to build in CA. I have not done any design work. Work has been a giant...
  4. I

    A Detailed Look at PSRU Design Methodology

    Just wanted to say: thanks for posting. I’m a random stranger on the internet, but what was available before struck me as very reasonable. Thanks, I’ll have to find time to read through
  5. I

    Doodling with an open-source map solution - "PiFlite"

    Like a lot of things in my life, this will probably never be finished, but I am goofing around with an open-source ForeFlight competitor / EFIS thing. GitHub - cobelu/PiFlite The reason why this is important is because practically every option we currently have (that I know of) is implemented...
  6. I

    Fans of the Davis DA-2...

    The guy who previously had the rights lived an hour away from me. He said he wasn't able to sell any because his large-format printer was broken. I offered to drive down and go to a copy shop with him. He declined. It's hard to say they were actually "available" at all.
  7. I

    Warbler

    Wanted to drop another update. We're at a standstill on the 12 because so many parts of the finishing kit are backlogged, so I spent some time measuring the seating geometry. This gave a good starting point for seat pan geometry. Hilariously, the distance from the top of the seat pan to the...
  8. I

    Warbler

    Still incredibly busy at work and will be until... well... honestly, I don't know when the madness will end. I was helping Robert Schmid work on his Q200 a few months back. Best wishes to him as he wraps up Phase 1 and plans to make Oshkosh '23. I have been spending some time helping a friend...
  9. I

    Warbler Discussion Thread

    There are a bajillion cases of in-flight canopy openings. All we can do is make a sincere effort to mitigate the risk.
  10. I

    Warbler Discussion Thread

    Whoops, it's been over a month. One thing I wanted to address: I do not encourage anyone go for a rear-swing canopy. It's too easy for the canopy to open in flight. An example of this is the 162 (Properly securing the C-162 door latches). Cessna had to add that secondary latch because too many...
  11. I

    Warbler

    Not much work lately. Very busy at work. Lots of screen time. Pretty tired all the time. I did a prebuy on a Zenith 601XLB two weekends ago, and that was a pretty insane (in a bad way) experience. I learned a lot and walked away, so it was a good experience in the end. The issues gave me a lot...
  12. I

    Warbler

    It's been a bit since I last posted. Work is pretty crazy right now and will continue to be for a while. Within the past few weeks, I've realized that the adoption of this hypothetical design might taper off with the number of pre-drilled holes. I've also accepted that most people are not going...
  13. I

    Airplane For Sale Dragonfly project in eastern New Hampshire for $2K

    If it helps someone else... https://www.facebook.com/marketplace/item/959509715207260 -C
  14. I

    Looking at Jabiru project

    Another guy posted that same ad in the for sale section and claimed the seller was not getting back to him. If the seller is responding, and you’ve seen it in person, then yeah, it’s a fine deal if you want to build. If you don’t want to build, then don’t buy it.
  15. I

    Warbler Discussion Thread

    Yes, I would like a steel tube in the green section. There’s no curvature, so a simple jig to weld and a trim to fit on the ends make this very easy to make. Shoulder harnesses… that’s another subject. I don’t know enough about them yet (I do know some theory) and need to revisit some other...
  16. I

    Warbler Discussion Thread

    That's a loaded question. All I can do at the moment is look at some of the existing designs. Every Sonex builder I have talked to has said that the worst part of the build was the canopy. Its shape is supported with 1/2"x0.058" 6061 tubing, which meets at a series of steel tubing intersections...
  17. I

    Warbler

    I forgot to mention something important in the previous post with the haphazardly-done assembly pictures. I'm working with the assumption that somebody in a last-ditch effort would buy much of the extrusion from Metal Supermarkets (I have no control over where people would source stuff). They...
  18. I

    Warbler

    It's time to start thinking about canopy design. I always intended to use a side-opening canopy because it is simple, cheap, and has worked fine for many existing designs. That has changed recently. I've given thought to a front-hinged canopy like on the Zenith 650. I like the thought, but I...
  19. I

    Warbler Discussion Thread

    This is a space for open discussion regarding the Warbler design project, at the request of cluttonfred. The "build" thread is here: https://www.homebuiltairplanes.com/forums/threads/warbler.38885/ The generic website placeholder is here: https://www.warbleraircraft.com/ As a reminder: I am...
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