RV3 Tailwheel

Discussion in 'Completions' started by ddsrph, Dec 7, 2016.

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  1. Dec 7, 2016 #1

    ddsrph

    ddsrph

    ddsrph

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    I wanted to mod my rv3 tailwheel to fix the problem of the low to ground tailspring. Rather than trying to cut and modify the original tailspring, I decided to go this route. Working great so far and I can convert back to original tailwheel in about 15 minutes.
     

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  2. Dec 8, 2016 #2

    fly2kads

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    Do you have a "before" pic? For those of us not versed in RV lore, what changed?
     
  3. Dec 8, 2016 #3

    ddsrph

    ddsrph

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    The original vans rv3 tailwheel and fork pivots on the down turned portion of the tailspring but sits so low to ground the end of tailspring just clears the ground by about one inch. Some RV 3's have caught this on rough Tarmac and damaged the airframe where the tailspring attaches. To correct problem most replace tailspring with a straight rod and new tailwheel assembly. Sometimes it is difficult to remove old tailspring and also difficult to drill new one correctly. I have a small mill/lathe from HF and made a new adapter from 6061 to fit a tail fork from aviation products and a new light weight wheel from Van's. I didn't take a before photo, but should have.

    JM
     
  4. Dec 8, 2016 #4

    fly2kads

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    Thanks for the explanation. Looks like that turned out well!
     
  5. Dec 8, 2016 #5

    Pops

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    Tarmac, Do you mean Ramp? Most ramps are concrete.

    http://aviationglossary.com/tarmac/
     
  6. Dec 8, 2016 #6

    TFF

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    Mine is not. Big airports are for sure concrete.
     
  7. Dec 8, 2016 #7

    Rockiedog2

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    Tarmac. That always annoys me when they call it that Pops. It's ramp.
     
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  8. Dec 8, 2016 #8

    Toobuilder

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    I would anticipate some significant wear on the "kickstand" forward brace if it is not secured to the tailspring. Flex in the rod aft of the contact point is going to cause the brace to fret against the spring. Throw some grit and oil in there and you may end up turning both parts into scrap in short order. Something to keep an eye on.
     
  9. Dec 8, 2016 #9

    Pops

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    Same here. When I hear someone calling a ramp a tarmac , I know they are a new to the aviation world. That is why I included a link to an aviation glossary. Maybe we can get it turned around to the correct word.
    But some people like to call a ramp a tarmac because it's so "European", and not American.

    http://aviationglossary.com/tarmac/
     
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  10. Dec 8, 2016 #10

    Turd Ferguson

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    Unless you land in Canada, Then it's "apron"
     
  11. Dec 8, 2016 #11

    bmcj

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    Eh?
     
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  12. Dec 8, 2016 #12

    Mcmark

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    Will it cause issues with reduced AoA in the flare? Looks to me like it is roughly 3-4" taller from original design. TooB has good points also...
     
  13. Dec 8, 2016 #13

    Pops

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  14. Dec 8, 2016 #14

    Rockiedog2

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    I'm good with apron. We called it apron and ramp in the military.
    it's the media that's most annoying when they say tarmac. they generally don't know what the hell they're talking about.
    I may have an attitude about those people. yeah I think so.
     
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  15. Dec 8, 2016 #15

    Pops

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    Same here. Low lifes to the 10th degree.
     
  16. Dec 9, 2016 #16

    Kevin N

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    I stay on sod so there is no confusion.
     
  17. Dec 9, 2016 #17

    TFF

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    You mean grass?
     
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  18. Dec 9, 2016 #18

    BJC

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    There are other areas where the media has shown that they don't know what he hell they are talking about. But, since they are paid to talk, they talk. Doesn't mean that we must listen to them.

    Pops, I appreciate your efeots to educate the public on the correct terminology.


    BJC
     
  19. Dec 9, 2016 #19

    ddsrph

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    All the rv3 tailwheel mods I have seen raise the tail about the same amount. I do all wheel landings and keep tail up as long as possible, depending on cross winds. The point about wear on the anti rotation/tailspring area is a good point and may require attention and possible change in design. When I get time I may just remove the old tailspring and replace with the new SS one I have from aircraft products. I have heard of problems of removing old tailspring and trying to drill new one to fit. I am so busy now building a new house I didn't want to start something I don't have time to finish.

    Thanks
    JM
     
  20. Dec 9, 2016 #20

    bmcj

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    I thought this thread was about RV-3 tailwheels. We should limit our discussion to what the media calls the RV-3 tailwheel (Tarmac Roller?). ;)
     
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