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  1. M

    Prop balancing - combining two weights

    Tämä Italiano neuvoo meitä kuin lapsia ja ehkä vielä kyseenalaistaa kykyni näillä kaikilla osa-alueilla. Olen päättänyt olla tuhlaamatta enää aikaa tämän foorumin lukemiseen. Schould I pay for protection.
  2. M

    Prop balancing - combining two weights

    Old trick that the gyis use that has no ways to balance a remowed prop, is that they turn the prop one bolthole 120 decree either direction. Somethimes that helps. That Dyna Wibe prop balancer would be nice to have, despite I can balance the remowed prop 100%. Not the prop but the spinner makes...
  3. M

    Prop balancing - combining two weights

    Nothing new under the Sun, but wood is a live material and things can happen while in storage.
  4. M

    Prop balancing - combining two weights

    Here is a metal blank that I described and mandrels that I use for bolthole drilling. Unfortunately theres no 4 inc patern only 100 mm. 4 inc patern I drill in drill press tru according press plate. I work outdoors with this dust busines and bring work piece indoors for the night but those metal...
  5. M

    Prop balancing - combining two weights

    I keep that one of the essential things in half way outwards of the blade. I have a five Inc wide metal C plank with raised hub section and bolt in the midle for centerin and holding it firmly in place, not tight. I made a Serialbox cardboard a shablon that is just perfect fit between metalplank...
  6. M

    Prop balancing - combining two weights

    Yes combined weight works and somethimes I use that trick when doing balancin work putting a slugs into boltholes. Like you know problem comes when the weight is needet on the side of the hub not in the blade. There you can add a laguer for balance but let the solvens fume out before final...
  7. M

    Sonerai Gear

    That heat treatment proces would have to perform the whole gear not only the rework area. I have materials to make autoklave that size for my self. I alredy have big owen for Plexiglass forming. But not now because I burchaset that gear set for rims, 4 pcs. and this gearleg thing game like extra...
  8. M

    Sonerai Gear

    Thanks for the tips to everyone. I realised while reading that if I heat that bend and succesfully restore the the strenght in that one place with heat treatment. It would be something else going outwards from that section. So the reheatment process for a whole part would be reguired. So I go...
  9. M

    Sonerai Gear

    What would be the correct and safe way to restore Sonerai 1 landing gear leg. To one that I just got is from crashed plane and the Left side last outher bend is overbend because the plane fell from the tree on that side. Main bendings next to the fuselage are ok . but the one next to the wheel...
  10. M

    Tubular fuselage design

    Aleksander Shcleiher K8b, Ka 4 and ASK 13 Triangular fuse is build "upside down" making that way a strong atachment points to cantilever horizontal stabiliser. I put my ho. stabilizer main tube where the upper longeron and tail kingpost meet. Must admid it took a while to deside where to put it...
  11. M

    Tubular fuselage design

    Those wings in my farm house living room are designed for 80% Piper J4 replica and the fuselage desing is straight forward from J4 with rectangular shape. Me however are fancied a triangular desing like Aeronca K much les tube junction to fit and weld. Made one already for a low wing plane. Big...
  12. M

    Just Wondering………

    Homebuilding ( precisely in the livingroom this time). I have a pair of wings made by another man that I would like to continue if I got time. Before my time they sat on the ceiling rafters in the doorles carage. Door opening were higher than the rafters inside so the snowstorm probably has...
  13. M

    Airplane Wanted Avid type airframe

    I repaired one mans Avid Flyer because he was not so avid by him self. I would lengten and make deeper fuselage, redesing landingear and good engineering practice is to put wing root pins vertical in strut braced wings. So you loose nothing with this in jig making vise.
  14. M

    Just Wondering………

    We all know the plane that atleast Wings are made from Wood and is kept in hangar what protects it from rain and snow. But is not heated or even insulated. Meaning that air huminity greeps in the structure slowly but surely. Naturaly these builds are protected with the best known products on...
  15. M

    Just Wondering………

    You are lucky if been an Idiot or a novice. Don´t mean you but universaly. Mark Langford from Kr2. fame had a crash with his Kr2. that reguired major rebuild. To get in the air while doing that he bought a another mans build Kr2. in flying condition. But as been pro in Kr.2 building it had so...
  16. M

    Annoying alternatives

    Rf.4 is a pure factory made in West Germany in sixties, also two seater RF5 exist, local flyin club has two of them. In Europa PPL has always been expensive so the back door for motorised flying was a Motorglider before Ultralights were invented. Later a Sperper factory build a buble canopy...
  17. M

    Annoying alternatives

    In Finland in eigthies here in a local Flying club had Fournier RF4 with that 1200cc. Rectimo engine. My original flight instructor and team made it a Experimental with Limbach 1700. Mr. Heikki Nummela made a record to Guines book to ammount of loops in one hour. Maybe possible even nowadays if...
  18. M

    Annoying alternatives

    Hello I´m under a stress, I flipped my Exp. Motorglider, build by another party. Its VW engine had crank bendet, I already both a new used well mainteined engine and installed it. But when I aplied inspection I was told by our own Finnish FAA that if I´m gonna replace the original motor witch...
  19. M

    Brakes for WW1 aircraft

    John are you familiar with SE 5 split axle desing. Later in WW1 The Royal Aircraft Factory addet a brakes in SE5 using so called split axle. Left side wheel axle was attacht to Richt side gear support so that axle spinning would be impossible and the vice verse. So that there was a two axles...
  20. M

    Brakes for WW1 aircraft

    Nice Wheel hub work above. I am a cable operated drum brake fan myself. So bad that I´m hoarding a drum brake material and making them advance before actual project is stardet. Newest installation from this Winter is to build a new gear to my Motorglider to accommodate a ski attachment. I...
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