Bearhawk Aircraft Bearhawk Tailwheels LLC Eric Newton's Builder Manuals Bearhawk Plans Bearhawk Store

Announcement

Collapse
No announcement yet.

Aileron pulley bracket

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Aileron pulley bracket

    I'm wondering why in the plans the aileron pulley bracket that attaches to the strut attach fitting has a 1/4" hole called out while the ms 20220-2 pulley and the cable retainer have 5/16"? Am I missing a bushing?

  • #2
    I recall installing a bushing there. You have to fabricate some bushings yourself from the stock which is included.
    I have no idea why that hole is undersize

    Comment


    • Dpearson
      Dpearson commented
      Editing a comment
      A quick note of thanks to Battson and all who maintain and contribute to this forum. I encountered this issue today and it was great to find the answer close at hand!

  • #3
    I think it's because it's hard to get a wrench in the bracket so a smaller wrench size is better. Eric Newton - Long Beach, MS http://mybearhawk.com
    Eric Newton - Long Beach, MS
    Bearhawk Tailwheels and Builder's Manuals
    http://bhtailwheels.com

    Comment


    • #4
      My plans call for the MS20220-2 or AN210-4A (same size as Cessna MCS378-4 or MS24566-4B) pulley, the latter being 1/2" larger diameter but only 1/4" bore. This is the direction I went, slightly longer cable life and no bushing.

      Mark J

      Comment


      • #5
        I bought my kit second hand, the previous owner had started working on the other wing so I looked to see what he had done and that was to drill the bracket to 5/16. I took the pulley off and there appears to be enough metal left to be safe although I'm no engineer. I may call Bob and see what he says before I order more pulleys or rebuild the other bracket.

        Comment


        • #6
          You'll be just fine with the 5/16 hole and AN5 bolt.

          Mark J

          Comment

          Working...
          X