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  1. I

    Cessna 172 wing strut cross section

    Thank you Marc. What is the heaviest accessory your system has supported? My probe probably weighs 3/4 to 1 pound (it's an early prototype). Here is a picture (see attached). Even if I don't use you mount for this prototype, I am interested for future use as my later prototypes should be much...
  2. I

    Cessna 172 wing strut cross section

    Attached are 2 attempts at picking off the strut profile from my drawing. I think #2 is smoother but #1 has better tangency at the leading and trailing edges. Probably won't make a difference once I add an offset and some padding. If you are building a similar thing, I hope this is of some...
  3. I

    Cessna 172 wing strut cross section

    Thank you everyone! Ok, I'll look up addicted2climbing! I ended up using a $5 contour gage from Harbor Fr[e]ight. Pictures or it didn't happen: https://goo.gl/photos/qhqU3MXJXXCvMsP57 As for damaging the strut -- thank you, I'll be very careful. I plan to make a 2-piece clamp out of wood, pad...
  4. I

    Cessna 172 wing strut cross section

    Dear aerotinkerers, I would like to make a secure wing strut mount for my new airdata probe for a Cessna 172. The GoPro camera mounts out there seem flimsy and expensive. I would like to just make two matching pieces of some hard non-scratching substance (maple, phenolic, ...) to clamp the...
  5. I

    Fuselage Jig Blocks

    Looks awesome! How does this compare to notching a piece of channel to make a "vee block"? Did you consider and reject that idea? Ihab
  6. I

    Coping / saddle cuts in aircraft tubing

    In another realm of life where people use gas torches to build stuff, we have traditional steel bicycle frame building. There they have like maybe 6 joints per frame, as opposed to the ten thousand ;) you need to make to get a plane together. So they can afford to be super precise. And they are...
  7. I

    Coping / saddle cuts in aircraft tubing

    Whoa, that's some sweet looking stuff there. Too rich for my blood though! Ihab
  8. I

    Coping / saddle cuts in aircraft tubing

    Um ... so how do people do that? :) Is it ok to have a very sloppy fit and just shimmy the part in? What about parts that have been already welded; how do you cope the tube to go around the existing weld? It just all seems like a huge mystery to me. Am I overthinking it and people just...
  9. I

    Pober Jr. Ace

    Thank you ... for now, I can use the pattern from the Baby Ace in the MI articles to create a throw-away jig to learn on. That way the stakes are low. Plus I have some 4130 tubing that I got in a "group buy" with a bunch of friends the last time Wicks had their big a-buck-a-foot sale. One more...
  10. I

    Pober Jr. Ace

    Point taken. Yeah I suspect all the parts are similar -- just that some designs have more of 'em. Like the tip rib, which fairs the wingtip much better, but also requires an extra rib assembly jig and an extra cap steaming setup. Thank you. That is key. The ability to trade time vs. money at...
  11. I

    Pober Jr. Ace

    Whoa. Thank you so so much! I love the hand-drawn artistry and flair of this sort of thing. And the abbreviations (1/4" L'NUT). These look really sweet! Ihab
  12. I

    Pober Jr. Ace

    Thanks Rki! You just reminded me that I saw some build videos for that: https://www.youtube.com/watch?v=aXWNYce3KyI Interesting. The "triangular" fuse can't be built as 2 flat sides then mated, but the jigging seems simple enough nevertheless. Ihab
  13. I

    Pober Jr. Ace

    Hi Mcrae -- thank you! Glad to be here! Airball is a homebuilding project all to itself! https://photos.google.com/photo/AF1QipPqJlv9rh3g6OMvtSfF6RG21CU9A_pZWiQTbvO2 Ihab
  14. I

    Pober Jr. Ace

    Not yet -- I just read the 1955 Mechanix Illustrated articles about the Baby Ace and studied the drawings in the article! And checked out lots of pictures of the airframe like these: http://www.antiqueairfield.com/articles/show/1166-jeff-kromer-s-pober-jr-ace and these...
  15. I

    Pober Jr. Ace

    Thanks ... I'm tempted to get 'em then. And thanks for the information about the weight. Hm, yeah. It's a hard choice. If I actually went forward with this plan it would be a way to give myself an aviation kick while spending less money (I would consider not flying while building, or just flying...
  16. I

    Pober Jr. Ace

    Ok will do. Hm. Well I do have a birthday coming up, although I'm already getting a Meco Midget. But it's my 50th so I might be able to up the ante. :) Thank you. I looked. It seems the Pober is even simpler(-er) though ... like the Wagabond has tip ribs, while the Pober is like, there is...
  17. I

    Pober Jr. Ace

    Greetings, This is a bit of a reprise of this thread: https://www.homebuiltairplanes.com/forums/showthread.php?t=16853 I'm poking around thinking about airplanes to build. My needs are 2 seat, side by side, preferably LSA compliant, simple, and able to take a wide variety of engines. I am a...
  18. I

    Proposed 2+2 E-AB aircraft

    Could indeed be.... I grew up in Nigeria and very much sympathize! :) I do like the CH801 too, and would consider it if their kits were a bit better quality and if I could get an FAA medical without thousands of dollars of crazy testing. Ihab
  19. I

    Proposed 2+2 E-AB aircraft

    Thanks folks for the viewpoints. Yes I see the issue about 4-seaters taking longer, and by the time you're done, the kids are grown.... But first of all, consider building any RV-x. With the flush rivets and beautiful curvy sheet metal and fancy 2024 aluminum that many/most people prime, these...
  20. I

    Proposed 2+2 E-AB aircraft

    Canada has an Owner-Maintenance Certificate of Airworthiness into which you can put an older aircraft. Were that present in the US, your points would in my humble opinion be airtight. In fact, an FAA rulemaking committee report recommended just that: Until we have that, and until it is...
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