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BC0979

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Posts posted by BC0979

  1. 38 minutes ago, Marty_d said:

    Interesting,  same basic setup as the Zenith CH701, but there's no bearing in the Zenith. 

    I reviewed the parts list for the 701 and it showed just one circular plate at the top to be bolted on. I believe the difference in the two designs is at the lower support. The 701 nose gear rides on the elastomeric centering block whereas the S rides on the upper axial bearing.  Correct me if I am wrong. 

  2. The top of the nose gear tube is not square to the shelf. The forward is lower than the aft by about 1/8 inch. The other builder hear stated that his nose gear was similar, not square to the shelf. 

    The top of the nose gear is not flush with the shelf either. It currently sticks up about 1/16 in the front above the shelf which is SM025.

    When all other parts are in place and tightened down, this will preload the nose gear tube.

     

    I have a thought that the powder coating may have caused this issue. I had to grind the upper and lower metal supports to get the nose gear to slide up and down. The bearing could have been binding on the nose gear tube as it moved up and down.

  3. What if SF327-4 were thicker/stronger, would this prevent this from reoccurring?

     

    Why do we use this roller bearing in the first place? It does not seem to be designed for IMPACT loading.

  4. This is a pic of the top of the nose gear tube (lots of grease)where SF327-4 is bolted

    So the impact of the nose gear tube retracting from the bungee tension deformed SF327-4 enough to allow the top bearing plate/ring SM003 to slide aft exposing the bearing.

    20240611_103440.thumb.jpg.5c82f2b24297e6810359eb627ce90a2b.jpg

  5. image.thumb.jpeg.3ac99bc38ebefc9c92bb883dcbae0b9e.jpegimage.thumb.jpeg.ba0408251e6251f052bfa784a3bb6c16.jpeg

     

     

     

    Here's my damage assessment. Somehow the SF327-4 top plate(bolted on) allowed the top bearing plate/ring SM003 to move aft which then impacted

    the SM002 keeper bracket.

     

     

  6. There isn't much of a cage for the tiny rollers.

    The nose gear tube pushes up and down through the center of this roller cage.

    I am flying off a grass field so the nose gear is working hard( lots of up and down). I can hear the nose gear bottoming out as it slams into the top metal plate stop where the two top retention bolts are located. I cannot avoid this hammering,  the field is not perfectly flat.

     

    • Helpful 1
  7. Hello guys. I am doing my initial flight testing and discovered  a few roller bearing pieces on the shelf of my firewall. I believe they are from the flat roller bearing of the nose gear. Anyone else have this issue? The nose gear still Rotates without binding.

     

    20240608_111727.jpg

  8. FYI if you have not witnessed this method.

     

    The certified professional weight and balance guy I hired had ramps for each of the three electronic scales.  The ramps and scales of each wheel were at the correct height for level flight, the top of the rear fuse. We rolled the S onto the scales. Then there was a Temperature compensation step before the final numbers. 

  9. Final assembly before the airworthiness inspection. Single set of wing tanks. Viking 130. 808 lbs empty 366kg

    Paid $250 for a guy with certified scales. Tried the digital bathroom scales without success,  my readings were much lower and inconsistent, tried 4x.

     

  10. 1 hour ago, Area-51 said:

    Buy new doors, cut off upper windows; 1/2 doors done 🤷🏼‍♂️

    Understood, but what about the hinge/mounting points? And air flow on the upper half? Sure some sort of fairing is needed on the upper half which is why I am asking this forum

     

  11. Great input Guys!

    I have bare aluminum (no paint) under the VGs.

    I did see that the StolSpeed website offers double sided tape but as stated earlier, not the right size for ICP VGs.

    I did not see that the "manual" recommended super glue. 

    If  I use super glue, I could remove the VG with a heat gun if and when a replacement is required.

    • Like 1
  12. Thanks to all of you I am almost there....😁

    After I get my Savannah S assembled at the field, I will install the little plastic VG pieces. I didn't want to transport the wing with them installed to prevent possible damage.

     

    So the question is, what do I use to install these little plastic VG pieces? Is there a clear glue the you recommend?

     

     

    • Like 1
  13. Yes, I am in Florida, USA so FlyBoy is correct. I am required to have 7" minimum ground clearance.

    15X6-6 tire deflated plus the bottoming out of the nose gear to the stops. I will need to check this.

    I fly off a grass field so nothing will save me if I bury the nose gear in a gopher hole....

    Thanks again for all the input.

    • Like 3
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