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  1. handprop

    Gee Bee

    Just got the newest issue of Sport Aviation today. Did anyone catch the story about the guy scratch building a Gee Bee? That's quite a project, and I thought I had my hands full, geez........ Homebuilding at its finest!:shock: Mike
  2. handprop

    Taylor Monoplane

    Hey guys For those of you who don't subscribe to " KITPLANES" magazine, the July issue has a real nice cover story on the all wood Taylor Monoplane. Mike
  3. handprop

    sailplane spar joining methods

    Hey guys Could any of you point me in the direction of methods used in joining sailplane wings. Iv'e been spending each night studying structural design of wings and I am starting to look ahead at how I want to join my aluminum wings in the steel tube fuselage for my Doodlebug project. The...
  4. handprop

    Youtube video WW 2

    Well, it's not for everyone but I figured some might like this, I sure did. This makes me want to go flying open cockpit, as if we need an excuse! Mike
  5. handprop

    Aluminum rib design options

    Hello everyone Well, Iv'e been spending hours studying and researching aluminum aircraft wings. It seems the standard in aluminum construction wing design makes use of a rib that's pounded or formed on a die that ends up creating a C shaped rib. But what about a little different approach...
  6. handprop

    Thorp T211 corrugated wing skins

    Hey guys, In my quest for learning about the stress in wings I remembered the good ol Thop designs. On some of his airplanes like the T211 he used corrugated aluminum for the skins. What was the reason for this? Is that because it helps with skin buckling and stress or did it have something to...
  7. handprop

    Trouble in Tipsy paradise

    I have to say over all I’m a very lucky guy. But sometimes, I swear, things can really go south quickly. I joined this forum only a couple of weeks ago and in that time I’ve been completely immersed in aircraft design. Never would I have thought I could get the enjoyment I do from studying...
  8. handprop

    Search key words for structural engineering

    Quick question for the folks in the loop. On my last thread I asked a question and Dana gave me a search phrase to look up and learn. Wow, that was just what I was looking for, I'm having just a blast researching and learning about aircraft structure. The question I have is can someone write...
  9. handprop

    Aluminum wing spar strength

    Hey guys! After Bill made a post on the thread about the weight changes in composite wings I started to do a little thinking. Over the years I somehow managed to collect a couple of dozen airplane plans, most of which were given to me. Looking through them I became puzzled about some of the...
  10. handprop

    Help with "theory of wing sections" book

    I'm sure some of you seen this coming a mile away, but I'm having some trouble understanding some of the charts in the book. I have learned about and understand the basic definitions of things like, coefficients,reynolds numbers, etc. but I can't seem to understand why in this book each chart...
  11. handprop

    thickness percentage for composite

    I looked in the archives for this but don't seem to find much on this topic. The original Tipsy Nipper wings were made of typical wood and fabric construction and the main spar was a massive laminated heavy built up type identical the the Corby Starlet and th "One Design". For my version I...
  12. handprop

    Advantages of tapered wings

    I was wondering if you folks could enlighten me on the subject of tapered wings. I hope you can all excuse me for probably being a little ignorant when it comes to design but building a tapered wing for a homebuilt to me seems like it lacks any real benefit. Part of my ignorance stems from my...
  13. handprop

    profili 2.0

    Could anybody tell me about this download? Can I count on its accuracy? Iv'e been working on my Tipsy Nipper project each night and now I'm looking at the wing portion. I stumbled upon Profili and was just wondering if it's worth downloading. Mike
  14. handprop

    Mike's Doodlebug/Tipsy Nipper Ver. 1(pics)

    Hey fellas Well, here is my first rough drawing (very rough). It's been real tough to copy from photos with any accuracy. Tipsy Nippers have no starter and as much as I love to hand prop old airplanes this one has to have a starter. Another thing I added is a rollover hoop because the...
  15. handprop

    In-flight fuselage twist photo

    Hey all While doing research on the Tipsy Nipper I came across an interesting photo and story about about a Tipsy owner that experienced aft fuselage twist during high G maneuvers. The following photo shows the fabric twisting when the pilot applies rudder. These airplanes have a very good...
  16. handprop

    Wee Bee

    Alright, between Bruce tempting me with photos, and now a video of it in flight I just have to ask, how can this happen? In the last few days I have hit the books and the internet real hard on design etc. Everything I read has to do with drag, positioning aircraft shape, reynolds numbers, yada...
  17. handprop

    Relationship of aspect ratio to aircraft weight

    Can I take a design of an airplane with a 1800 lb. gross and compare it to an airplane with a gross of say 900 lbs. and come up with similar results as it concerns AR. Assume that WL, PL, Sq. Ft. of wing, etc. all scale down accordingly. I guess AR is kind of a mystery to me because when I...
  18. handprop

    Mike's Doodlebug project

    Hello folks, If figured I should start my own project thread. Well.......I opened three of the books I ordered this morning and only 1 of the 3 were any good. Dan Raymers book was the best of the lot. I spent 5 hours today reading Dans book and now I'm going to read it again and spend some...
  19. handprop

    Relationship of wetted area/fineness ratio

    Without having experience to guide me I am wondering about how important wetted area and fineness ratio are in the overall picture as it relates the the speed of an airplane. From a plumbers perspective it seems that on a real fast airplane these two matter a lot more than on an airplane that...
  20. handprop

    Does this fuselage profile make sense?

    I just finished my first sketch. Could anyone offer an opinion on the basic shape as a possible candidate for my learning project. It's about 12' long and 24" wide at the widest part. It looks a little big but it's actually really tiny. In the next couple of days I plan on working over all the...
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