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  1. #101

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    RE: 1/2A Biplanes.*** LIMIT***. .010 to .049? *** MAXX LIMIT .15 ***-

    People often talk about things like "ballooning" or "instability" without specifying what the actual problem is. In this case, was it actually longitudinally unstable? Then the CG was too far back. Or, more likely, did it just climb too much under full power? In that case, today we would just use down trim. The better solution would be to trim up the leading edge of the stab. If that was not possible, you could make the wing incidence more negative, but then you lose some of the downthrust that you need. The early designs usually had the stab set quite negative to the wing, which was the usual free flight practice. If you add much power and you can't control the elevator it swoops up.

    LOTS of successful biplanes have flat bottom airfoils. Up until the late 1920s or so most even had undercamber. You can build perfectly good models of them using the scale undercamber.

    Jim

  2. #102
    GallopingGhostler's Avatar
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    Oct 2004
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    Clovis, NM
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    RE: 1/2A Biplanes.*** LIMIT***. .010 to .049? *** MAXX LIMIT .15 ***-

    Lots of good info, folks, thanks for making me aware of these things. When I build an RC bipe, will have an idea when it comes to making flight adjustments.
    George Hostler
    Clovis MADS AMA Club, Vintage R/C Society (VRCS)
    And we know love by this, that He laid down His life for us, and we ought to lay down our lives for the brethren. 1 John 3:16

  3. #103
    joebahl's Avatar
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    Dec 2007
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    joliet, IL
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    RE: 1/2A Biplanes.*** LIMIT***. .010 to .049? *** MAXX LIMIT .15 ***-

    Yes i will have to let this imfo sink in i was never a biplane person till now and i have one and getting ready to build a couple more in foam and a balsa one. Thanks for the great imfo .joe

  4. #104

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    Jan 2003
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    RE: 1/2A Biplanes.*** LIMIT***. .010 to .049? *** MAXX LIMIT .15 ***-

    Our club is hosting a biplane get-together this fall. It will be in the AMA calendar. Small bipes (and triplanes, etc.) will be WELCOME! (Along with all other sizes, and electric too) I'm working on a couple of bipes right now, one will be powered by a PAW .06 diesel. I'm glad if anything I posted was useful.

    Jim

  5. #105
    joebahl's Avatar
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    RE: 1/2A Biplanes.*** LIMIT***. .010 to .049? *** MAXX LIMIT .15 ***-

    ORIGINAL: buzzard bait

    Our club is hosting a biplane get-together this fall. It will be in the AMA calendar. Small bipes (and triplanes, etc.) will be WELCOME! (Along with all other sizes, and electric too) I'm working on a couple of bipes right now, one will be powered by a PAW .06 diesel. I'm glad if anything I posted was useful.

    Jim
    Ha Ha your a wealth of imfo buzzard bait ,iam close to 60 but still learning good stuff every day. My spring and summers are filled with ama water funflys or i would take you up on that bibe meet offer. I have been flying 95 percent off of water now for 15 years and have made many friends who attend them with me. joe
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  6. #106

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    RE: 1/2A Biplanes.*** LIMIT***. .010 to .049? *** MAXX LIMIT .15 ***-

    Hey Joe, that is a great looking airplane! I've been wanting to fly off water here but even though lots of lakes, haven't found a place for glow engines. I'll go to a float fly around here next season and give it a try. I'm over 60 myself and still learning too. Grew up in Iowa and still drive out there a few times each year.

    Jim

  7. #107
    joebahl's Avatar
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    RE: 1/2A Biplanes.*** LIMIT***. .010 to .049? *** MAXX LIMIT .15 ***-


    ORIGINAL: buzzard bait

    Hey Joe, that is a great looking airplane! I've been wanting to fly off water here but even though lots of lakes, haven't found a place for glow engines. I'll go to a float fly around here next season and give it a try. I'm over 60 myself and still learning too. Grew up in Iowa and still drive out there a few times each year.

    Jim
    Ha Ha if you say you farmed like me when you were young we might be long lost brothers. I started driving a john deer A at the ripe old age of 10 . My dad said i could not keep the corn rows straight till then. joe

  8. #108

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    Flipper 18"

    Flipper built about 20yrs ago, 2ch. R&E .010 Cox silk& dope fly's good.

    Sorry, for some reason I can't post a picture.
    Last edited by twowing; 09-26-2015 at 03:08 PM. Reason: Can' post a picture

  9. #109

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    I've always thought a racing series for .020's would be fun. I have a plan for an .020 Rivets that is as cute as it could be. I saw a small Shoestring a while back that would work. I have souped up some TD .020's and they will really scream....until they melt !!!!!!!! Let's hear some comments.
    Steve Westphal

  10. #110

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    BTW.......does anyone know a Jared Miller aka "Jasper X" I sent him 140 dollars for a couple of .020's and never received them or anycontact.
    Steve Westphal

  11. #111
    aspeed's Avatar
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    Ruthven, ON, CANADA
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    I hate when guys steal your money. I lost $150 on a S Tiger X .29 that was never sent many many years ago. I was a fairly well known name too. Carlos Aloise. Apparently he did it to a lot of people. Some people actually had to show up at his door and he would pay up. That is about the only way. It is a bit of gas to go to California from here. My wife tells me about it every time I want something in the mail. It ruins it for everyone. Some guys were racing reedy .049s on the forums (Fora) with some local success. I think it would go over better if parts were available on a common engine like an AP .09, or LA .10 or .15, and maybe a cheap kit or simple plan to make things more global and even.
    Glow Head Hood # 7

  12. #112
    MJD's Avatar
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    Quote Originally Posted by Steve Westphal View Post
    BTW.......does anyone know a Jared Miller aka "Jasper X" I sent him 140 dollars for a couple of .020's and never received them or anycontact.
    Don't know him, but the name has come up in the past.

    Edited with apologies
    Last edited by MJD; 11-02-2015 at 01:15 PM.
    Marine GOOP = magic faerie boogers in a tube, sticks everything.

    Revver Bro #231

  13. #113
    joebahl's Avatar
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    Dec 2007
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    Been a while since i been here so here are a few free 049 free plans most tiled including a twin 049 shrike . Its a sin i know but planning on a bigger shrike some day only electric . lol joe http://my.pclink.com/~dfritzke/

  14. #114
    Mr Cox's Avatar
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    He ran it to some personal problems I believe, rather than just scamming people for money; http://www.coxengineforum.com/t1667p...ghlight=jasper

  15. #115
    combatpigg's Avatar
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    Nov 2003
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    Quote Originally Posted by aspeed View Post
    I hate when guys steal your money. I lost $150 on a S Tiger X .29 that was never sent many many years ago. I was a fairly well known name too. Carlos Aloise. Apparently he did it to a lot of people. Some people actually had to show up at his door and he would pay up. That is about the only way. It is a bit of gas to go to California from here. My wife tells me about it every time I want something in the mail. It ruins it for everyone. Some guys were racing reedy .049s on the forums (Fora) with some local success. I think it would go over better if parts were available on a common engine like an AP .09, or LA .10 or .15, and maybe a cheap kit or simple plan to make things more global and even.
    Carlos Aloise..name rings a bell.
    I think he flew C/L Carrier and some speed...getting frequent mention in the Carrier standings...?
    That's not an Indian movie man, that's a test pattern....

  16. #116
    combatpigg's Avatar
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    Quote Originally Posted by Mr Cox View Post
    He ran it to some personal problems I believe, rather than just scamming people for money; http://www.coxengineforum.com/t1667p...ghlight=jasper
    Isn't Jaspur X one of those "Aspiring Rappers" who is always getting his life turned around...?
    That's not an Indian movie man, that's a test pattern....


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