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Type: Posts; User: JLS

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  1. Replies
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    As seen in South Africa "kitplanes for africa". ...

    As seen in South Africa "kitplanes for africa".

    With a tight fit, I don't see why it wouldn't work (and examples are flying).

    8838

    I must admit my proposition has a flaw, you don't have to...
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    Here are some notes and calculus. These are SVG...

    Here are some notes and calculus.
    These are SVG files, I advise you that to download them you should open them with a recent
    navigator (Chrome, Firefox, MS Edge). There is no danger of computer...
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    I'm interested in as strength as possible so...

    I'm interested in as strength as possible so 0.083" with wood doubler is my choice.
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    1,930

    Thanks for sharing but this tube is for wing...

    Thanks for sharing but this tube is for wing spars, 0.083" wall is for strength, (0.035" and 0.065" wall is too thin, 0.125" is
    too heavy).2"-1/2 OD is for leading edge radius.
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    I found https://www.tubeservice.com/ (from a...

    I found https://www.tubeservice.com/ (from a thread on homebuiltairplanes.com)
    This reference is on their catalog.

    If you have another one, I appreciate your sharing it if you want.

    Thanks...
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    looking for 6061T6 2"-1/2 OD 0.083" wall tube

    I'm looking for 6061T6 2"-1/2 OD 0.083" wall tube and can't find it. (0.065" or 0.125" wall
    only). I looked at aircraftspruce, wicks and onlinemetals. Have you some addresses ?

    Thanks in advance...
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    Hiscocks "Design of light aircraft" Chapter 5

    "Design of light aircraft" from Richard Hiscocks can be an entry to design tail and have
    loads on it. I worked chapter 5 on flight envelope quite hard on an own design
    until I made a spreadsheet...
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    Thank you for your post Mike. Did you follow...

    Thank you for your post Mike.

    Did you follow Earl Luce advices on cutting 4130 tube (videos
    on eaa.org) or did you produce your own methods (notcher
    lathe or others) ?

    No answer from Mike,...
  9. Replies
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    1,598

    Thank you. I saw your logs of the Buttercup...

    Thank you. I saw your logs of the Buttercup project on wingsforum, and its quality is impressive.
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    I couldn't imagine anything better than this book...

    I couldn't imagine anything better than this book for my issue. Thank you for your help.

    A more convenient drawing of the cluster A is below. It seems that upper longeron should be bent and not ...
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    For sure, thanks for the information. I'm a great...

    For sure, thanks for the information. I'm a great fan of wittman designs.
  12. Replies
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    4130 fuselage truss

    Hello,


    I'm quite a beginner in 4130 fuselage truss conception and I'd like
    to have your opinion about an example.


    Is longeron continuity at the tail cone mandatory ?
    Is it possible that a...
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    My previous post was just plain wrong; formulas...

    My previous post was just plain wrong; formulas were for a
    center of pressure under 1/3 chord, such as ironically
    NACA 23000 series of airfoil.


    For center of pressure over 1/3 chord the...
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    Fixed sum airloads on an airfoil

    Hello,

    Reading books on aerodynamic/design/conception/construction of aircraft gives you
    (by date of pub.) by authors
    Munk
    Abbott (and related NACA 814 reports)
    Peery
    Roskam
    Bruhn
    Raymer...
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    Roger Mann 80% scale Tiger Moth replica

    I've bought Roger Mann 80% scale Tiger Moth replica RTM22
    plans, and think they're good for the money (25$).
    Roger Mann offers its support for building and you
    may contact an EAA chapter...
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    Not a scam, look at...

    Not a scam, look at
    http://www.marcel-jurca.com/index.php/en-us/drawings

    best of luck.
  17. Thread: Honeycomb

    by JLS
    Replies
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    1,808

    Thank you Bob for answering my question. I'll try...

    Thank you Bob for answering my question. I'll try to have a look at Bede's book but your information is sufficient for me.
  18. Thread: Honeycomb

    by JLS
    Replies
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    1,808

    Honeycomb

    Hello to you all,

    Where to get information about honeycomb used in the BD4 aircraft. Is this detailed in
    the Jim Bede book "Build Your Own Airplane", if someone has the book ?

    Thank you for...
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    Westfall negative stagger biplane

    I discovered Westfall negative stagger biplane in Sport Aviation of october
    and found that this cabin biplane was great, I couldn't resist to draw a
    microlight-LSA variant with a VW 2180 70HP...
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    Light four seater with 130HP Viking engine

    Proposal for a light 2+2 seater. Useful load 840lbf. V-tail is inspired by the Davis DA-2

    Some specs...
  21. Angle of incidence with help from Snorri...

    Angle of incidence with help from Snorri Gudmundsson book
    https://drive.google.com/file/d/10KDf9gfoeZ5iebuO63H_lccV5H3A8-2j/view?usp=sharing

    Wing 6G neutral flaps CG 15% Chord...
  22. Use of the monospar wing, with thin walled closed...

    Use of the monospar wing, with thin walled closed (birch ) section
  23. 2 cells with tube web internal shear resisting pattern

    Hi,



    I didn't know if it was a 3 cells web, you have to make the spar junction with the upper and
    bottom wing surface (or leading edge). What is your opinion about it ?
    I put the .png on...
  24. London City Airport in Vincent Van Gogh landscape

    Hello to you all,


    Perhaps you know France from fine wines and food specialities. Salon-eyguières local
    airport is running toward privatization in the Natural regional Park of Provence
    "Parc...
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