Page 1 of 4 123 ... LastLast
Results 1 to 40 of 136

Thread: Wing Tip Shape Summary

  1. #1
    Bill Rusk's Avatar
    Join Date
    Jan 2003
    Location
    Spokane Felts Field, WA/Poplar Grove, (Chicago) IL
    Posts
    5,247
    Post Thanks / Like

    Wing Tip Shape Summary

    In researching wing tips I have come up with the following Names. It would be nice if folks that have any of these tips could post pictures from a couple of angles and describe them, installation notes, impressions etc. There are so many tips I thought it might be nice if we could get all the info in one place.

    Sullivan
    Dakota
    Crosswinds
    Demers
    Stewarts
    Horner
    Hindricks
    Madras
    Plane Boosters
    Ferguson

    others?

    Thanks

    Bill
    Last edited by Bill Rusk; 01-07-2012 at 11:38 PM.
    Very Blessed.

  2. #2
    phdigger123's Avatar
    Join Date
    Mar 2011
    Location
    Cottage Grove, Mn
    Posts
    277
    Post Thanks / Like
    My PA18A-150 has Ferguson booster tips. They extend about 18 inches past the aileron.
    Click image for larger version. 

Name:	P5211098 r1.jpg 
Views:	165 
Size:	217.7 KB 
ID:	4898Click image for larger version. 

Name:	P5211099 r1.jpg 
Views:	173 
Size:	289.0 KB 
ID:	4897
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	301485_10150315314427958_639457957_8012035_1936754197_n.jpg 
Views:	272 
Size:	84.7 KB 
ID:	4894  
    Last edited by phdigger123; 01-07-2012 at 11:33 PM.

  3. #3
    www.SkupTech.com mike mcs repair's Avatar
    Join Date
    Aug 2004
    Location
    chugiak AK
    Posts
    10,501
    Post Thanks / Like
    sullivan
    some versions/copies can be very thick and heavy, most not...
    adds some wing area...

    dakota is kinda a mini version like this, maybe 5" wide...

    Click image for larger version. 

Name:	IMG_4463.jpg 
Views:	163 
Size:	1.58 MB 
ID:	4899Click image for larger version. 

Name:	IMG_4464.jpg 
Views:	159 
Size:	1.74 MB 
ID:	4900Click image for larger version. 

Name:	IMG_4465.jpg 
Views:	150 
Size:	1.59 MB 
ID:	4901

    might want to add to list:
    just squared off no tip,
    above with a plate that goes an inch beyond
    and standard cub round wing...
    then there is round cub front with back squared off?? or is it the other way around????

  4. #4
    Bugs66's Avatar
    Join Date
    Feb 2004
    Location
    Spokane WA
    Posts
    2,309
    Post Thanks / Like
    These are the D&E tips. I am not sure who makes them but Ernie said they are Semi-Horner style.



    Click image for larger version. 

Name:	IMG_1137.jpg 
Views:	206 
Size:	219.8 KB 
ID:	4911 Click image for larger version. 

Name:	IMG_0063.jpg 
Views:	247 
Size:	179.9 KB 
ID:	4908 Click image for larger version. 

Name:	IMG_0952.jpg 
Views:	244 
Size:	136.7 KB 
ID:	4909 Click image for larger version. 

Name:	2401RNSss.jpg 
Views:	210 
Size:	118.7 KB 
ID:	4910
    Last edited by Bugs66; 01-08-2012 at 01:21 AM.

  5. #5

    Join Date
    Dec 2006
    Posts
    43
    Post Thanks / Like
    Here is another one from Wag-Aero. Simple, compact, cheap.
    http://store.wagaero.com/product_inf...oducts_id=3954
    Bob

  6. #6
    aktango58's Avatar
    Join Date
    Aug 2004
    Location
    18AA
    Posts
    9,109
    Post Thanks / Like
    Seen some of the Crosswind tips, most had wrinkles in them where they had been bent

    comments as to them were that they flew nice, but any cross wind, especially when on a cross slope with the wind going downhill, (like wind in evening going from hill to water, will put your wing down and your tip gets modified.

    Also some comments about brush and the tips not getting along, very weak at the trailing tip...

    I will ask a guy that still flies them when I see him next what he thinks after about 10 years with them...
    I don't know where you've been me lad, but I see you won first Prize!

  7. #7
    Gunny's Avatar
    Join Date
    May 2003
    Location
    WA
    Posts
    1,633
    Post Thanks / Like
    Here are some comparison photos of the Sullivan (white ) and the Dakota (black) wing tips. The originals are in my photo gallery if you want to see the full size pics.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	Compare_Outboard_Edge.JPG 
Views:	261 
Size:	23.2 KB 
ID:	4913   Click image for larger version. 

Name:	Compare_Width.JPG 
Views:	211 
Size:	13.1 KB 
ID:	4914   Click image for larger version. 

Name:	Bottom.JPG 
Views:	174 
Size:	23.4 KB 
ID:	4912   Click image for larger version. 

Name:	Outboard_Edge.JPG 
Views:	195 
Size:	22.1 KB 
ID:	4915   Click image for larger version. 

Name:	Top.JPG 
Views:	176 
Size:	21.7 KB 
ID:	4916  

    "You are the Gray Rider who would not make peace with the Blue Coats, you may go in Peace." - Ten Bears

    Gunny

  8. #8
    flybynite's Avatar
    Join Date
    Oct 2004
    Location
    Eagan, Minnesota
    Posts
    344
    Post Thanks / Like
    Plane Booster on a PA-12

    Click image for larger version. 

Name:	1854IMG_1393.JPG 
Views:	147 
Size:	278.6 KB 
ID:	4917 Click image for larger version. 

Name:	1854IMG_1383.JPG 
Views:	130 
Size:	292.8 KB 
ID:	4918Click image for larger version. 

Name:	2011-11-18_11-01-55_541.jpg 
Views:	103 
Size:	52.2 KB 
ID:	4919 Click image for larger version. 

Name:	2011-11-18_11-06-41_904.jpg 
Views:	107 
Size:	81.3 KB 
ID:	4920 Click image for larger version. 

Name:	2011-11-18_11-09-17_881.jpg 
Views:	110 
Size:	67.4 KB 
ID:	4921

    Wayne
    Last edited by flybynite; 01-08-2012 at 12:09 PM. Reason: Added more photos
    Thanks Jonnyo thanked for this post

  9. #9
    Steve's Aircraft (Brian)'s Avatar
    Join Date
    Aug 2004
    Location
    White City, Oregon
    Posts
    899
    Post Thanks / Like
    Here is a caparison picture of Sullivan tips to stock.... I did this conversion on a Pacer....

    Click image for larger version. 

Name:	27001_380708280215_79219185215_4328817_6021073_n.jpg 
Views:	243 
Size:	59.8 KB 
ID:	4922

    Tip covered and painted, fiberglass removeable.... I prefer to be able to remove the tips for maintenance reasons...


    Click image for larger version. 

Name:	27071_384681955215_79219185215_4440614_945998_n.jpg 
Views:	170 
Size:	56.0 KB 
ID:	4923

    Demer Tip on our Pacer....

    Click image for larger version. 

Name:	27071_384682625215_79219185215_4440653_6659193_n.jpg 
Views:	142 
Size:	79.1 KB 
ID:	4924

    Sullivan tip....

    Click image for larger version. 

Name:	27071_384682630215_79219185215_4440654_4335663_n.jpg 
Views:	154 
Size:	103.6 KB 
ID:	4925

    Note the difference in distance from the end of the aileron to the end of the tip in both examples.
    The biggest complaint I have heard from people using the tips that leave a lot of surface area past the aileron is that they lose some aileron control at slow speeds. This is due to the fact that they are now pushing that extra surface out past the aileron. The best thing to do when using these tips on an experimental is to either extend the aileron out to the tip or move the aileron and extend the flaps.... So far, there is not an approved mod to do this on certified airplanes.

    URL to a bunch of pictures I took when doing the conversion work....

    https://www.facebook.com/media/set/?...9185215&type=1

    From my understanding a lot of the tips you have listed are the same tip but renamed as they were sold to other companies....
    For example....
    Demers and Madras tips are the same.
    Plane Booster and Ferguson are the same and is now Cub Crafters. CC has changed the tip profile to make it their own.
    Sullivan and Hindricks are the same.
    All the rest are stand alone tips..... Stewarts is the only tip listed that is not a fiberglass tip but simply a different bow shape to the tip and fabric covered.

    Brian.
    Last edited by Steve's Aircraft (Brian); 01-08-2012 at 01:09 PM.

  10. #10
    www.SkupTech.com mike mcs repair's Avatar
    Join Date
    Aug 2004
    Location
    chugiak AK
    Posts
    10,501
    Post Thanks / Like
    Quote Originally Posted by Steve's Aircraft (Brian) View Post
    ...The best thing to do when using these tips on an experimental is to either extend the aileron out to the tip ........ So far, there is not an approved mod to do this on certified airplanes....
    I am pretty sure Day & Night(Sullivan) has STC for this, -18, not sure which others..(it was like 17+ years ago, remember having a Day & Night drawing/blue print)

  11. #11
    Bill Rusk's Avatar
    Join Date
    Jan 2003
    Location
    Spokane Felts Field, WA/Poplar Grove, (Chicago) IL
    Posts
    5,247
    Post Thanks / Like
    This is GREAT stuff folks. Keep pictures and info coming. This will be the definitive wing tip resource thread.

    Bill
    Very Blessed.

  12. #12
    aktango58's Avatar
    Join Date
    Aug 2004
    Location
    18AA
    Posts
    9,109
    Post Thanks / Like
    Crosswind is aluminum...
    I don't know where you've been me lad, but I see you won first Prize!

  13. #13
    Steve's Aircraft (Brian)'s Avatar
    Join Date
    Aug 2004
    Location
    White City, Oregon
    Posts
    899
    Post Thanks / Like
    Quote Originally Posted by mike mcs repair View Post
    I am pretty sure Day & Night(Sullivan) has STC for this, -18, not sure which others..(it was like 17+ years ago, remember having a Day & Night drawing/blue print)
    That would be nice.... When I did the tips on the Pacer we looked and did not find any "current" STC's available... If it became available, that airplane would be back in my shop and getting modified.

    Brian.

  14. #14
    njneer's Avatar
    Join Date
    Oct 2004
    Location
    Chugiak, Alaska
    Posts
    94
    Post Thanks / Like
    "Wing tip" - That portion of a wing where the owner starts sweeping the snow off....again.

    Three months of continuous snowfall makes this pilot grumpy. I long for the day with more than a quarter mile visibility.
    Last edited by njneer; 01-08-2012 at 03:23 PM. Reason: typo
    Life in Alaska isn't always easy, but it has its rewards.

  15. #15
    www.SkupTech.com mike mcs repair's Avatar
    Join Date
    Aug 2004
    Location
    chugiak AK
    Posts
    10,501
    Post Thanks / Like
    Quote Originally Posted by Steve's Aircraft (Brian) View Post
    That would be nice.... When I did the tips on the Pacer we looked and did not find any "current" STC's available... If it became available, that airplane would be back in my shop and getting modified.

    Brian.
    call and ask ron sullivan in anchorage...

  16. #16
    Gunny's Avatar
    Join Date
    May 2003
    Location
    WA
    Posts
    1,633
    Post Thanks / Like
    Quote Originally Posted by mike mcs repair View Post
    I am pretty sure Day & Night(Sullivan) has STC for this, -18, not sure which others..(it was like 17+ years ago, remember having a Day & Night drawing/blue print)
    Bingo - the Day & Night (Sullivan/Hendrick) tips are STC'd for the -18 STC SA427AL. I believe that you can install the wing tips without installing the Day & Night square tail (STC SA589AL). However, the square tail STC requires installation of the wing tips per the STC text. Field approval deviations (i.e. different tips with the square tail) have been obtained in the past. YMMV depending on what flavor of Fed is looking at your field approval request. Links to the STCs:

    Tips: http://www.airweb.faa.gov/Regulatory...hlight=sa427al

    Square Tail: http://www.airweb.faa.gov/Regulatory...hlight=sa589al


    Hey Brian (Steve's Aircraft) - here is a list of all the other Sullivan wing tip STCs (Ronald E. Sullivan P Star Route A, Box 1549, Anchorage, AK 99507) I put the address because there are two addresses in the FAA database and the tip STCs are under this one. I also guess that the holder has changed from Day & Night to just Ron now. Here's the list:

    SA427AL - PA-18
    SA453AL - PA-22
    SA476AL - PA-12
    SA478AL - PA-16
    SA479AL - PA-20

    Hope that helps and sorry for the thread creep Bill.
    Last edited by Gunny; 01-08-2012 at 05:49 PM. Reason: Added PA-22 Wing Tip STC
    "You are the Gray Rider who would not make peace with the Blue Coats, you may go in Peace." - Ten Bears

    Gunny

  17. #17

    Join Date
    May 2006
    Posts
    311
    Post Thanks / Like
    Dakota wings, tips, aileron moved outboard, flaps extended are STC'd, add a slot too.

  18. #18
    Gunny's Avatar
    Join Date
    May 2003
    Location
    WA
    Posts
    1,633
    Post Thanks / Like
    Quote Originally Posted by Aerodon View Post
    Dakota wings, tips, aileron moved outboard, flaps extended are STC'd, add a slot too.
    Aerodon - Just so no one is confused, the Dakota tips are only STC'd on a Dakota wing. I am not saying that they cannot be field approved (337) but they are not STC'd on any wing except a Dakota wing. Also, to the best of my knowledge Dakota does not have any data to support a 337 application for the tips on a non-Dakota wing. With all of that said, I am pretty willing to bet that somebody on here would share a successful Dakota tip 337 with you in support of a similar application. There are plenty of Dakota tips on non-Dakota wings to testify to that but as always - YMMV depending on what flavor of Fed you are standing in front of.
    "You are the Gray Rider who would not make peace with the Blue Coats, you may go in Peace." - Ten Bears

    Gunny

  19. #19
    www.SkupTech.com mike mcs repair's Avatar
    Join Date
    Aug 2004
    Location
    chugiak AK
    Posts
    10,501
    Post Thanks / Like
    Quote Originally Posted by Gunny View Post
    Aerodon - Just so no one is confused, the Dakota tips are only STC'd on a Dakota wing. I am not saying that they cannot be field approved (337) but they are not STC'd on any wing except a Dakota wing.....
    has not been a problem at all to use them on others..... up here at least....YMMV

  20. #20
    Steve Pierce's Avatar
    Join Date
    Mar 2002
    Location
    Graham, TX
    Posts
    18,832
    Post Thanks / Like
    The aileron moved out on the Dakota wing is only approved on their built up wing. There is an STC to square the Pacer wing and use the Dakota tip but still have a large area outboard of the aileron.
    Steve Pierce

    Everybody is ignorant, only on different subjects.
    Will Rogers

  21. #21
    Beach Bum's Avatar
    Join Date
    Jul 2010
    Location
    Acworth, GA
    Posts
    325
    Post Thanks / Like
    On a certified PA-18, are all tips considered equal? Any clear winner performance wise?

  22. #22
    tcraft128's Avatar
    Join Date
    May 2006
    Location
    St. Marys GA
    Posts
    791
    Post Thanks / Like
    These are the Randy Apling (8856Charlie) carbon fiber wing tips. I weighed one today and it is 16 ounces. It has a built in light pad and fits great.







    Turning money into noise since 1996

    Our Build here


  23. #23
    gdafoe's Avatar
    Join Date
    Feb 2002
    Location
    Castle Well Airpark SE of Wickenburg AZ
    Posts
    871
    Post Thanks / Like
    Looking at Gunny's pictures it looks like the Dakota tips don't add much length to the wing at the trailing edge. Am I correct? It seems to follow then that they would allow for a little better roll rate than say the Sullivan or the D&E tips. This thread is very timely as I am looking to replace the Wingtips on my BackCountry wings. I have the original Smith droopy tips and do would like a tip that does not droop. I have the squared wings with long ailerons.
    Last edited by gdafoe; 01-08-2012 at 09:05 PM.
    Gerald

  24. #24
    Gunny's Avatar
    Join Date
    May 2003
    Location
    WA
    Posts
    1,633
    Post Thanks / Like
    Quote Originally Posted by gdafoe View Post
    ...looks like the Dakota tips don't add much length to the wing at the trailing edge. Am I correct?
    Gerald - Here's a shot of my Cub from behind so you can see the spacing of tip trailing edge to aileron edge. Bear in mind that this is the Dakota wing with the ailerons moved outboard so there would be a bit more space on a stock wing - but not as much compared to say the Sullivans. Somebody correct me if I'm wrong or post a pic of the Dakota tips on a stock (ailerons not moved) wing. The inserted pics here are small but the links below should open the big ones that are easy to see the tips on. The little pics are here so you can find the big ones in my gallery if the link doesn't work and so the dial up guys don't bum out (is anybody still on dial up????).
    Hope this helps.

    Link to big pic: http://www.supercub.org/photopost/data/500/DSCN0274.JPG

    I added another closer up shot (yellow wing on right): http://www.supercub.org/photopost/data/500/DSCN1410.JPG
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	DSCN0274.JPG 
Views:	162 
Size:	60.2 KB 
ID:	4941   Click image for larger version. 

Name:	DSCN1410.JPG 
Views:	182 
Size:	41.5 KB 
ID:	4942  
    Last edited by Gunny; 01-08-2012 at 09:20 PM. Reason: added second link and thumbnail
    "You are the Gray Rider who would not make peace with the Blue Coats, you may go in Peace." - Ten Bears

    Gunny

  25. #25
    Bill Rusk's Avatar
    Join Date
    Jan 2003
    Location
    Spokane Felts Field, WA/Poplar Grove, (Chicago) IL
    Posts
    5,247
    Post Thanks / Like
    Gerald

    Please post some pictures so folks can see what the Backcountry Tip looks like. Or send them to me and I'll post them.

    Thanks

    Bill
    billrusk@aol.com
    Very Blessed.

  26. #26
    Amy's Avatar
    Join Date
    Jul 2009
    Location
    WI/MN/SD
    Posts
    669
    Post Thanks / Like
    Quote Originally Posted by gdafoe View Post
    Looking at Gunny's pictures it looks like the Dakota tips don't add much length to the wing at the trailing edge. Am I correct?
    Correct; in fact, on experimental airplanes we have supplied wing tips for we recommend trimming the rib tail to ensure the best fit. Of course, that is an as-needed kind of thing as there are often subtle and not-so-subtle variations between different airplanes.

    --Amy
    Proud owner of a collection of airplane pieces (sometimes in one big piece) known as the Oklahoma Kid.

  27. #27
    Steve's Aircraft (Brian)'s Avatar
    Join Date
    Aug 2004
    Location
    White City, Oregon
    Posts
    899
    Post Thanks / Like
    Quote Originally Posted by Gunny View Post
    Hey Brian (Steve's Aircraft) - here is a list of all the other Sullivan wing tip STCs (Ronald E. Sullivan P Star Route A, Box 1549, Anchorage, AK 99507) I put the address because there are two addresses in the FAA database and the tip STCs are under this one. I also guess that the holder has changed from Day & Night to just Ron now. Here's the list:

    SA427AL - PA-18
    SA453AL - PA-22
    SA476AL - PA-12
    SA478AL - PA-16
    SA479AL - PA-20

    Hope that helps and sorry for the thread creep Bill.
    Gunny,
    The tips I put on the Pacer are Sullivan tips... I was referring to moving the ailerons out using those tips and many other tips that are similar in installation.

    Mike,
    I talked to Ron when I was doing that conversion and he did not have a STC at the time to move the ailerons for the Pacer. Might for the -18, but did not ask that at the time.

    Brian

  28. #28
    gdafoe's Avatar
    Join Date
    Feb 2002
    Location
    Castle Well Airpark SE of Wickenburg AZ
    Posts
    871
    Post Thanks / Like
    Click image for larger version. 

Name:	P1080309.JPG 
Views:	105 
Size:	32.8 KB 
ID:	4951Click image for larger version. 

Name:	DSCF2009.JPG 
Views:	93 
Size:	28.8 KB 
ID:	4952Click image for larger version. 

Name:	P1100155.JPG 
Views:	92 
Size:	32.7 KB 
ID:	4953Click image for larger version. 

Name:	IMG_2766.JPG 
Views:	104 
Size:	1.59 MB 
ID:	4954
    These are SmithCub Tips the original ones that came with the Smith Kit. I don't think they are the same as furnished with the BackCountry Kit now.
    Gerald

  29. #29
    cgoldy's Avatar
    Join Date
    Apr 2009
    Location
    Moogerah Queensland Australia
    Posts
    406
    Post Thanks / Like
    Are there any tips available or has any one made tips that include a fence?

  30. #30
    dplunkt's Avatar
    Join Date
    Feb 2011
    Location
    S.E. Pennsylvania
    Posts
    62
    Post Thanks / Like
    Brian (Steve's aircraft)... when you added the Sullivan tips to your Pacer could you have installed them without extending the wing? oi meand could you have cut off the spare extention to equal the original wing span? Or does the STC prohibit that?


    Dan

  31. #31
    Steve's Aircraft (Brian)'s Avatar
    Join Date
    Aug 2004
    Location
    White City, Oregon
    Posts
    899
    Post Thanks / Like
    Quote Originally Posted by dplunkt View Post
    Brian (Steve's aircraft)... when you added the Sullivan tips to your Pacer could you have installed them without extending the wing? oi meand could you have cut off the spare extention to equal the original wing span? Or does the STC prohibit that?


    Dan
    The installation instructions are with the wing extended.... To deviate from that would probably require a field approval since the original approval is with the extension. Besides that, you want the extra wing area on the short wing of the Pacer.

    When I talked to Ron when doing this conversion he had told me that he originally designed and approved these tips so that owners of Plane Booster/Ferguson droop tips could easily replace them with his tips. The extension of the wing is identical. There are a lot of owners that do not like the droops due to their "blocking" part of your view area past the wing tip.

    On another note.... The addition of VG's on the wing bring back most if not all of the aileron control, but I still think getting the ailerons out to the tip would be the best solution.

    Brian.

  32. #32
    jgerard's Avatar
    Join Date
    Nov 2004
    Location
    Seattle, WA
    Posts
    894
    Post Thanks / Like
    FYI both the long and short wing piper wings are the same length outboard of the struts. Extending the the wing beyond the factory length should include also beefing up the rear spar at the strut to handle the increased loads. For a stock 1750lbs gross cub I would be conservative with long wings, heavy loads, and heavy turbulence or high G maneuvers.

    Jason

  33. #33
    www.SkupTech.com mike mcs repair's Avatar
    Join Date
    Aug 2004
    Location
    chugiak AK
    Posts
    10,501
    Post Thanks / Like
    Quote Originally Posted by cgoldy View Post
    Are there any tips available or has any one made tips that include a fence?
    crosswinds, sorta
    http://www.crosswindsstol.com/products.html

  34. #34
    moneyburner's Avatar
    Join Date
    Mar 2003
    Location
    Western Washington
    Posts
    958
    Post Thanks / Like
    Quote Originally Posted by Gunny View Post
    Aerodon - Just so no one is confused, the Dakota tips are only STC'd on a Dakota wing. I am not saying that they cannot be field approved (337) but they are not STC'd on any wing except a Dakota wing. Also, to the best of my knowledge Dakota does not have any data to support a 337 application for the tips on a non-Dakota wing. With all of that said, I am pretty willing to bet that somebody on here would share a successful Dakota tip 337 with you in support of a similar application. There are plenty of Dakota tips on non-Dakota wings to testify to that but as always - YMMV depending on what flavor of Fed you are standing in front of.
    I put a set on my PA-12 with a 337 - my IA didn't even scowl. "Easy as pie" was his techno-aeronautical bureaucratese term for it.
    Quidquid Latine dictum sit, altum videtur

  35. #35
    Terry E's Avatar
    Join Date
    Mar 2011
    Location
    NW
    Posts
    18
    Post Thanks / Like

    stewart tips

    these were easy to install.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	P1010008.JPG 
Views:	177 
Size:	857.8 KB 
ID:	5078   Click image for larger version. 

Name:	P1010007.JPG 
Views:	152 
Size:	860.7 KB 
ID:	5077  

  36. #36
    phdigger123's Avatar
    Join Date
    Mar 2011
    Location
    Cottage Grove, Mn
    Posts
    277
    Post Thanks / Like
    Quote Originally Posted by jgerard View Post
    FYI both the long and short wing piper wings are the same length outboard of the struts. Extending the the wing beyond the factory length should include also beefing up the rear spar at the strut to handle the increased loads. For a stock 1750lbs gross cub I would be conservative with long wings, heavy loads, and heavy turbulence or high G maneuvers.

    Jason
    For what it is worth, the load on a wing is not linear. The highest loading is at the root and it decreases to zero at the tip. The decrease is not linear, it looks more like a parabola.
    Likes pfm liked this post

  37. #37
    Iflylower's Avatar
    Join Date
    Aug 2008
    Location
    Memphis, TN
    Posts
    1,350
    Post Thanks / Like
    Quote Originally Posted by phdigger123 View Post
    For what it is worth, the load on a wing is not linear. The highest loading is at the root and it decreases to zero at the tip. The decrease is not linear, it looks more like a parabola.
    Im curious how that changes in strutted vs cantelevered planes? Load testing has shown Cubs to load fail at the rear spar strut attach point, so that is a good place to beef up with some doublers. Also, I learned from Steve pierce that Piper approves a spar splice outside of the wing strut attach. Inside is a no/go.

  38. #38
    Cajun Joe's Avatar
    Join Date
    Jul 2003
    Location
    LS86 or Hammond, LA
    Posts
    1,356
    Post Thanks / Like
    In my short experience:
    Droop tips suck. I found no lift advantage and the
    make it difficult to see past the wing from the cockpit.

    The original bow tips are great. You can bump into
    hangar doors and stuff and they usually bounce back.

    Yeah, I guess that's the trick word..usually
    Of course I've bumped into a few things and
    nothing on the plane bounced back...cept me.

  39. #39
    Steve Pierce's Avatar
    Join Date
    Mar 2002
    Location
    Graham, TX
    Posts
    18,832
    Post Thanks / Like
    Joe, Speaking of bumping into things. I was using my slide hammer the other dy and thought about you.
    Steve Pierce

    Everybody is ignorant, only on different subjects.
    Will Rogers

  40. #40
    Cajun Joe's Avatar
    Join Date
    Jul 2003
    Location
    LS86 or Hammond, LA
    Posts
    1,356
    Post Thanks / Like
    that piece of black and blue webbing
    between the thumb and forefinger??

    bummer

Similar Threads

  1. The Long Overdue New Holstein 2006 Survey Summary
    By SJ in forum Member to Member
    Replies: 0
    Last Post: 10-09-2006, 03:57 PM

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •