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  1. D

    modify wing performance

    Jan, I think you're correct about years ago. Thinking back, that was in my "relocate mains and convert into a tricycle" days. Prior to that I still had hopes of 199mph and a third class medical. Yesterday found a 5/10/2005 photo showing a wing extension with mains mocked up. As to memory...
  2. D

    modify wing performance

    Guys, I'm still looking an answer I can understand <G>. Is the following a viable option for my situation previosly described and will the mathematics support FAA/DAR scrutiny? [Do you think adding 24sf to my 64A212 wing center section for a 92sf total wing area @ 950# gross and under 138 mph...
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    modify wing performance

    if I had more time and energy left, I would add an upper mid-fuselage inverted gull wing to the M1. Still have the article on how those racers modified a M1 way back when. Big problem with leaving my lower wing in position is bipe wing interference and access to the cockpit..
  4. D

    modify wing performance

    that's what I'm now hoping. back in 2005 I did some structural calcs for the connections and added forces. then still thought i'd have a class 3 medical and do that 199mph.
  5. D

    modify wing performance

    [In short, yes, you need a different wing but it will most likely be a new, larger wing, not a recovered original wing.] Forgetting the recover/gloving thought, do you think adding 24sf to my 64A212 wing center section for a 92sf total wing area @ 950# gross and under 138 mph lower my clean...
  6. D

    modify wing performance

    My weight is 200# and Covair engine supposedly is 225# and my mission is pure, local VFR with a and bladder limit of 2+/- hours. Reviewing your thoughts using my swag of an additional 12sf for a 80 sf total, perhaps I could do it with 92sf (doubling my original swag). 950#, 1.5 CLmax, 92sf...
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    modify wing performance

  8. D

    modify wing performance

    One more time with utmost respect and sincerely desiring to learn or find my mental error. I've invested almost 10 years in effort and money while intending to fly my project at 199mph with a Class 3 medical. Alas, that dream is crushed and I now fly under the drivers license self-medical...
  9. D

    modify wing performance

    First let me say that I really appreciate the replies from all but especially yours. Just the stimulation I need. Thanks! Rereading this thread again, I probably haven't been clear about what I'm trying to do (sorry <G>). Rather than build a totally new wing for conversion to a bipe, I'm...
  10. D

    modify wing performance

    After rethinking and checking references, it appears my guesstimated 80sf is nowhere close to that needed for a stall of 51mph with my current 12-13#/sf wing loading. 51mph needs wing loading down to 7#/sf equating to 60sf additional wing area... With my 5' root chord, I don't see adding 6'...
  11. D

    modify wing performance

    Sincerely with all respect, I see a lot of "fixes" out there and was kind of hoping that gaining a little here and a little there, etc might work. Having a permanently and partially deflected flap was my attempt at changing the airfoil and didn't consider the DAR & terminology possibility...
  12. D

    modify wing performance

    Thanks. This is an incomplete experimental project that hopefully can be modified and built to meet LSA requirements; hence the 51mph with no flaps applied. Currently flying my Zodiac 601HD under the Sport Pilot provision for drivers license in lieu of 3rd class medical, my single seat...
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    modify wing performance

    As an old guy struggling to lower his project's stall to US number of 51mph/45knots, I'm trying to evaluate Leading Edge VGs, Hoerner Wing tips, L.E. fixed Slats, flap "zero" set at some guesstimated degree position or even reconfiguring the L.E. Profile... My airfoil is a NACA 641A212 at root...
  14. D

    carb air box bearing

    In attempting to convert an Aircraft Spruce 2" diameter "Y" tube into a carb air box, the oval flapper was made but I'm drawing a mental blank on how to attach a bronze oil-impregnated bearing or any bearing to the thin wall tube for the operating shaft: the round exterior of the tube and...
  15. D

    Stromberg NAS3A1 Carb Orientation

    Probably should know this buut can my Stromberg be mounted with any side forward? It would greatly simply the throttle & mixture controls on my experimental. I mean are there any adverse effects? Thanks, Dick [email protected]
  16. D

    sticky switches on old transponder

    Thanks. Results of liberal contact cleaner were negative. Did open up case and switches enough to verify IDent & Test are momentary pushbuttons while ALTimeter latches and unlatches. ON & OFF are to physically toggle per visual exam of them. StandBY has no wires (but appears visually to maybe...
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    sticky switches on old transponder

    The push button switches on my old ARC (Aircraft Radio & Control), a division of Cessna, RT-859A p/n 42260 102P are sticking and sometimes inoperative. The transponder has 6 square pushbuttons arranged ID-ALT-TEST on top row with ON-STBY-OFF on bottom. (BTW, code switches are rotating lever type...
  18. D

    Main Leg Connection Question

    Thanks for your reply although I'm disappointed in my being such a poor communicator that I got no others. Maybe a little more effort on my part is needed <G>. Wing "straps" probably be better described as fuselage crossmember connections for attaching the wing forward spar.. The 4130 leg...
  19. D

    main leg sketch for comment

    I hope this attachm,ent works. Comments? Thanks, Dick
  20. D

    Main Leg Connection Question

    I hope a photo is attached this time. Sorry for long learning curve
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