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Thread: flaps on t-craft wing

  1. #1

    flaps on t-craft wing

    Im thinking of adding flaps on a taylorcraft im rebuilding but having a hard time finding any info. Does anyone have any comments. I was thinking its just a matter of building the cove into the entire wing and using ailerons as the flaps. Also looking at the auster junkers flaps. Im in Whitehorse but need to head over to alaska to find a set of wings so hope there may be a plane i can look at in the fairbanks area. Thanks.

  2. #2
    Copy the Auster split flap?

    I've flown Austers, they are quite effective......

    Experimental or certified?

    Andrew.

  3. #3
    I have been trying to get info on the Auster junkers type flap. I was thinking it may be simpler to do this as the wing is left intact. Im rebuilding a bc-12d as an experimental. I dont expect cub performance but it would be nice to kill the float on landing and add anything to the basic performance if possible, without adding much weight. Im thinking of buying a set of wings with good spars as mine are cracked, so with parts for two wings i could build a set of flaps out of the extra ailerons... if this is how the factory flaps are. So at this point just trying to see what others have done and not reinvent things.

  4. #4
    I have not seen any but, Taylorcraft offered flaps as an option towards the end of their production. Perhaps there is a T-craft group which could help you? Also you could consider a spoiler for the top of the wing to dump lift. That might be easier to build.
    N1PA

  5. #5
    Quote Originally Posted by skywagon8a View Post
    I have not seen any but, Taylorcraft offered flaps as an option towards the end of their production. Perhaps there is a T-craft group which could help you? Also you could consider a spoiler for the top of the wing to dump lift. That might be easier to build.
    Try D&E they have flaps. Marc
    t-cart n43643

  6. #6
    There is one here at the float pond that has Flaps (I think) and drooping leading edge.
    Tim

  7. #7
    How are you planning to rebuilding a T Craft to be experimental? Unless you build 51% from scratch it will still be considered a certified aircraft and the flaps will need to be approved. If you build a completely new (different; non-certified parts + flaps) wing that will go a long way toward the 51%. Make sure you talk to the FAA first about your plans so you don't end up with an aircraft that you can't certify. The FAA is very sticky these days; the days of moving a certified aircraft to experimental amateur built are basically over. If you have the 51% figured out than adding flaps would be about the same as adding flaps (using an STC) to a PA12. Sounds interesting.
    Marty57
    N367PS
    Psalm 36:7 "High and low among men find refuge in the shadow of His wing"
    www.xanga.com/martyfeehan

  8. #8
    Quote Originally Posted by Marty57 View Post
    How are you planning to rebuilding a T Craft to be experimental? Unless you build 51% from scratch it will still be considered a certified aircraft and the flaps will need to be approved. If you build a completely new (different; non-certified parts + flaps) wing that will go a long way toward the 51%. Make sure you talk to the FAA first about your plans so you don't end up with an aircraft that you can't certify. The FAA is very sticky these days; the days of moving a certified aircraft to experimental amateur built are basically over. If you have the 51% figured out than adding flaps would be about the same as adding flaps (using an STC) to a PA12. Sounds interesting.
    Marty57
    He don't need to talk to the FAA!
    Tim

  9. #9
    Mit Greb
    I missed that one when I was there last year ,I will have to make sure and look it up next year.
    Doug

  10. #10
    Tim's Avatar
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    If Deano ( sodak ) reads this maybe he will chime in. He had an experimental with taylorcraft wings and as I remember it had flaps.
    3 or 4 of us flew together one time and he was faster than all of us and his had an 0-290

    Tim

  11. #11
    OK I got the tcraft book out and reread it taylorcraft only built 17 planes that were equip with flaps they were the f22 f22a/b/c the b and c two were produced so it is hard to find a tcraft with flaps go to taylorcraft .org and ask for help Forrest Barber was test pilot for the factory at that time and he is on the site

  12. #12
    Dean sold it to another guy in Rochester it now has an 0-320 in it I think between Dean and I can get you some good pictures

  13. #13
    It was built by Terry Fatzinger 300TF

  14. #14

  15. #15
    heres a picture of one I took years ago, remember to tie your tail down..... wind from front, didn't touch a thing sat on tires and prop...

    it had wood spars, and that was thought to be not a good idea to add flaps to it... or so the conversation went back then.... he had them wired inop... to get an annual....


  16. #16

    Auster Flaps

    Quote Originally Posted by sibbeston View Post
    I have been trying to get info on the Auster junkers type flap. I was thinking it may be simpler to do this as the wing is left intact. Im rebuilding a bc-12d as an experimental. I dont expect cub performance but it would be nice to kill the float on landing and add anything to the basic performance if possible, without adding much weight. Im thinking of buying a set of wings with good spars as mine are cracked, so with parts for two wings i could build a set of flaps out of the extra ailerons... if this is how the factory flaps are. So at this point just trying to see what others have done and not reinvent things.
    The Auster flaps are not Junkers type flaps…… unless you mean the AOP9 or one of the Terriers. By that time the connection with the T-craft is tenuous at best!

    They are a split flap, the lower surface of the flap is flush with the lower surface of the wing when the flaps are up. When the flaps are lowered the top surface of the wing is unchanged. i.e. the top surface of the wing is continuous. My understanding is the split flap is more effective than the “semi-slotted” flap or whatever it is we have on Cubs.

    The flap on the Auster is a sheet metal affair, with some bent up stiffening angles running fore-aft and spanwise on the inside of the flap. They are actuated via a torque tubes from memory, the flap lever pivots somewhere around the rear cabin spar and actuates the flap torque tubes and is operated by your left hand. This results in an interesting hand swap action from the right hand throttle which gets even more interesting when you want to get rid of flap quickly, but also want power quickly! This aspect you may not wish to duplicate.

    The Auster has an impressive stall speed, slower than a Super Cub and at higher weights. They are however an acquired taste to fly. I have never flown a T-craft to compare.

    I think you would have to alter your ribs on your T-craft wing to properly duplicate the Auster flap. It would be less extensive than cutting the ends off and fitting a cove. I don’t have day-to-day access to an Auster, but know a guy who has one. PM me if you’re serious and I’ll try and see about getting you some photos. The other source is the IAC (International Auster Club).

    Andrew.

  17. #17
    Quote Originally Posted by mike mcs repair View Post
    didn't touch a thing sat on tires and prop...



    Gee Mike if it didn't touch a thing, what caused that big wrinkle in the left wing root area? Looks like there could be some serious spar damage.
    N1PA

  18. #18
    www.taylorcraft.org

    This is the Taylorcraft Foundation Site. Forest Barber can answer all the questions about Tcraft's that you might have.
    Almost there, I can smell it....no that's just polybrush

    Follow Our Build here


  19. #19
    Quote Originally Posted by skywagon8a View Post
    Gee Mike if it didn't touch a thing, what caused that big wrinkle in the left wing root area? Looks like there could be some serious spar damage.
    The flaps were wired up so it could be annualed????!!???? Apparently such a thorough annual wouldn't include a look at that left wing, either!!

    Mike probably meant the a/c didn't touch anything to get up on it's nose, etc. I'm guessing, seriously, that the left wing tiedown and the jumping around in the wind pulled the wing forward and hurt the aft attach point.

    I still think it's pretty funny that undocumented flaps would get by an IA simply because they were 'wired' to be inoperational.

    Flaps on a t-crate. There was one at Lake Hood years ago and the owner told me he wouldn't bother with the effort again, when I asked him if it had better performance. Maybe it was simply that his flap design could have been better.

    Check into Doug Keller's (KSECUB here) EXP Super Cub miniature DeHavilland Otter double flap for your T-crate.

  20. #20
    now i remember... it rolled backwards as wind pushed it, ropes helped pull it up.... plus tail untied...

    no damage in wing that I heard of... just funky looking in that position... was a big tank in there and a big fabric area over it... flexed some.... probably had to do with tank install/tube...

    that was back in the 80's, when FAA quit/you couldn't even get airstreaks approved, people needed to have the big tires, so people would not bother to get annuals since they could not get it "airworthy" anyway.... or you would have to put it on small tires to do the annual.... then they swap tires back after done... was a joke... so nice to have STC'd tires now...

  21. #21
    I saw an L-4 Cub with Taylorcraft wings in ACY in 1961. I wanted one - I suppose the idea was to go fast and still have a J-3. Here is a better, cheaper idea: Get a stock Cub for fooling around locally (or a tricked out Alaska Super Cub if you really will be doing bush flying) and get a Decathlon for going faster in comfort. That's what I did, and it works!

    I fly an L-2 Taylorcraft with spoilers on occasion. It is an honorary J-3. I would never admit to doing something so horribly illegal, but I suspect if you pull the spoilers just before touchdown you can come close to Cub-like landing performance.

    That said, if I were going to put flaps on a Cub-like airplane, they would be Cessna Para-Lift, and they would go to 60 degrees. Husky had the right idea, but current certification requirements apparently stopped them at 30 degrees, meaning you really have to slow it up before you decide to flare, or you will touch down on the wrong end of the airport.

  22. #22
    I like the tires and wheels on that blue T craft. Looks like they are straight off an auto.
    Those who pound their guns into plows, will plow for those who do not.

  23. #23
    Ya. They look like Mickey Thompsons. I read in a magazine article that guys used to run Mickey's before bushwheel type tires came about. As I understood it, the problem with them is that they would really grip upon touchdown.

  24. #24
    Quote Originally Posted by Patrol Guy View Post
    I like the tires and wheels on that blue T craft. Looks like they are straight off an auto.
    Stcd. Snider slicks

  25. #25

    Flap details

    I think i will build flaps out of my extra ailerons. So now i wonder if the hinge points should be lower than my ailerons? Also if i just used the stock t-craft bell crank and hinges there would be a clearance issue. I think copying the cub flap system may work. Then there is only one cable to worry about.
    Any thoughts? Also i will need to buy some parts for this. Anyone have the hangers and ather brackets that may work?

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