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Thread: Trick Air Alpine 3000 install on my Cessna 180

  1. #1
    Paul Jackson's Avatar
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    Trick Air Alpine 3000 install on my Cessna 180

    I had new skis installed over the holiday break and took them out for the first go on snow today. I am an admitted newbie on skis with limited experience, but I really thought they got up and on top very nicely and take offs and landings went very well. I have been very happy with them in cruise and all regimes of flight. I did a quick install and removal in the shop before leaving and they were on and off in minutes with my biggest slow down being the big cotter key removal (user error I am sure). I have known Steve the owner of Trick for a few years now and he sponsors my ski fly-in so I got some really good service on the install, but I am am sure he would jump through hoops for his customers.

    We hung the plane with the float rings and removed the wheels to install the ski axles. Note that you have to go to 850-6 tires and they have to be inflated to 55 PSI for the install.

    4757U Axles.jpg

    We found out during the install we could not use AN hardware on the axle bolts and Steve supplied me with the NAS hardware replacements. Axle install was pretty straight forward.

    We had some issues with the attach brackets which mount on the gear legs. Cessna apparently had a bit of variance in gear width from year to year and Steve had to get us some wider back plates to make it work. We also had to work some of the mounting holes and my mechanic really spent some extra time "forming" them to match the fuselage lines and conform bracket to gear leg. These with stay with the gear off season so the fit and finish was worth it.

    4757U Ski Bracket.jpg

    Next was rigging them. My guys played with this for a bit and they ended up not having to use shims.

    4757U Ski install.jpg

    The gear really flattens out under load and they set up very nicely. Rigging wires turned out clean looking and it is a very nice looking install in the end.

    4757U Skis Front.jpg

    Here is finished product. I will have the 180 at the Ski Plane fly in at McGregor on the 26th.

    4757U Trick Skis.jpg
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  2. #2
    www.SkupTech.com mike mcs repair's Avatar
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    those gear leg attach brackets are scary... can fail/slide down gear....

    better to install Atlee ski brackets

    http://www.fadodge.com/?s=ski+brackets&submit=

  3. #3
    Paul Jackson's Avatar
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    Don't think they are going anywhere they bolt through into the gear shims. The two visible bolts are just to hold two brackets together. Mechanic was very happy with the mounting system compared to others he has installed.

    PJJ

  4. #4
    www.SkupTech.com mike mcs repair's Avatar
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    Quote Originally Posted by Paul Jackson View Post
    Don't think they are going anywhere they bolt through into the gear shims. The two visible bolts are just to hold two brackets together. Mechanic was very happy with the mounting system compared to others he has installed.

    PJJ
    common failure point... only seen ONE set of those Cessna cable attach points used in over 30 years used in Alaska.... but it's your plane to wreck!

  5. #5

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    I've got a couple of that style mount, from the previous owner, that are mangled, the force on them is so great since the cables are at such a shallow angle, the Atlee Dodge mounts are good insurance in case you pull on one of those cables real hard.

  6. #6
    G44's Avatar
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    The top of the gear leg geometry makes me very nervous, the upper fuselage area behind the cowl is a much better and safer location to attach rigging.
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  7. #7

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    Gear mounted ski fittings? Wasn't there an AD on those like 25 years ago? No effing way I'd use those!

  8. #8
    G44's Avatar
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    No spreader bar between the lift rings?
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  10. #10

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    Hard to tell from the pictures, but it looks as if the Atlee upper ski cable attach bracket may already be installed. And I see the aft float attach piece. The cables should be attached to those two points. At any rate, the cables should not be as presently installed.

  11. #11

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    Scary alright....call Atlee and we'll all sleep better.
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  12. #12

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    Well there now. That should do it. Y’all got that straightened out. Nice.
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  13. #13
    mvivion's Avatar
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    Quote Originally Posted by G44 View Post
    No spreader bar between the lift rings?
    YOW! That’s scary itself.

    And I third or fourth that rigging is a disaster waiting to happen.

    MTV
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  14. #14
    Dave Calkins's Avatar
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    Airglas discarded the gear leg cable/bungee attach plates some years ago for good reason.

    Some advice here has been given in an abrupt tone. Take the advice. It comes from experience over the years.

    These guys are not trying to hurt you. When advice says "DON'T", it is saying "..don't hurt yourself.."
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  15. #15

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    Steve from TrickAir, here. I’ve been watching this thread with great interest and I appreciate everyone’s thoughts and feedback.

    I spent some time today researching the facts of AD 98-23-02 / 80-10-01. Subsequently, Paul and I have been talking and have agreed we’re going to make some changes to his install. I’ll let him share the specifics if he wishes to.

    A little background is probably helpful here. When we purchased the TrickAir Company and relocated operations to Minnesota a few years ago, we noted that that there were no ADs associated with TrickAir skis and that the Cessna models 180 and 185 had received STC approval from FAA in 2011. This is an important market for us and we hoped that the simpler, gear-leg bracket for attachment of bungee and safety cables would be valuable to our customers.

    Paul’s airplane was our first Cessna 180 installation since we took over the business so I attended the install to learn a few tips and tricks to help future customers. I didn’t anticipate the reaction, but I’m glad that Paul posted the install pictures; and I appreciate all of you sharing your knowledge and recommendations drawn from many years of experience. At TrickAir, the safety of our products is our highest priority and so we will be looking at options to address the issues noted in the ADs.

    Thanks again,
    Steve
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  16. #16
    www.SkupTech.com mike mcs repair's Avatar
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    Quote Originally Posted by schwis38K View Post
    Steve from TrickAir, here. I’ve been watching this thread with great interest and I appreciate everyone’s thoughts and feedback.

    I spent some time today researching the facts of AD 98-23-02 / 80-10-01. Subsequently, Paul and I have been talking and have agreed we’re going to make some changes to his install. I’ll let him share the specifics if he wishes to.

    A little background is probably helpful here. When we purchased the TrickAir Company and relocated operations to Minnesota a few years ago, we noted that that there were no ADs associated with TrickAir skis and that the Cessna models 180 and 185 had received STC approval from FAA in 2011. This is an important market for us and we hoped that the simpler, gear-leg bracket for attachment of bungee and safety cables would be valuable to our customers.

    Paul’s airplane was our first Cessna 180 installation since we took over the business so I attended the install to learn a few tips and tricks to help future customers. I didn’t anticipate the reaction, but I’m glad that Paul posted the install pictures; and I appreciate all of you sharing your knowledge and recommendations drawn from many years of experience. At TrickAir, the safety of our products is our highest priority and so we will be looking at options to address the issues noted in the ADs.

    Thanks again,
    Steve
    haven't looked up the AD yet, but have been thinking of the failure mode of that style bracket, and a SIMPLE safety improvement....
    the root cause is the nut plates on gear shoes gets stripped out from people over tightening the 1/4" bolt(bottoming out the threaded portion of bolt), or skis pulling on them...

    simple solution is use a bolt with longer threaded area and add a metal nut inside gear box on the side of shoe where the nut plates are located.....

  17. #17
    G44's Avatar
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    Thanks for chiming in Steve! I hope my delivery wasn't too harsh, I just don't want to see Paul have issues. We lost a close friend of our family in 1980 due to a ski issue and it still stings to this day. Pauls airplane sure does look good on the skis, when he gets the rigging sorted out he is going to have a blast with it!

    I must say, I was a bit surprised to see no spreader bar on the lift rings. Paul, make sure you use one next time you hoist.

    Kurt

  18. #18
    Paul Jackson's Avatar
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    As Steve said above, he and I had a conversation after this thread blew up. He has told me he is going to go away from the landing gear bracket set up.

    Trick Air is going to pay for my mechanics time and also for the parts needed to convert my aircraft to a more vertical attach in the front and likely we will use the rear attach fitting for the float. From there I will need a field approval which should be pretty straight forward as this would mirror other ski rigging installs on 180's.

    Not my float lift; it is my mechanics. I will ask them to use a spreader bar on my aircraft. I didn't note its omission that day.
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  19. #19
    mvivion's Avatar
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    Sounds like Trick Air is making every effort to be a stand up company. Good for them! It's always good for business in the long run.

    In addition to being safer, the more forward mounting of the front cables and more aft mounting of the rear cable provide a MUCH better geometry for the ski rigging.

    For that reason, on Cubs, I really prefer having the front cables attached to the lower engine mounts.

    MTV
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  20. #20

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    Hey Paul , you will love your new skis .
    I have been running trick airs 2250 on my cub for the last 4 years and have a blast .
    36DBA69F-5F9E-4F62-9B17-AA19DC6827BC.jpeg

  21. #21
    SJ's Avatar
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    This is EXACTLY the kind of interaction I like to see here with manufacturers. They can learn a lot from the base of knowledge here, and in this case it is a win for everybody.

    sj
    "Often Mistaken, but Never in Doubt"
    ------------------------------------------
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  22. #22
    G44's Avatar
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    Big kudos to Trick-Air!

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    Anyone have performance comparison to the Airglass LW3600?

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