Recent content by Dpearson

  1. Dpearson

    Height of Avipro rear seat

    Re-igniting a very old thread (since I have a very old kit): I did a fit check of my "not so tall" self (5'-8") in the rear seat of my 4-place and my head is crashing into the diagonal tubes over the rear seating area. This is with a 1/2 thick sheet of OSB laid across the tubes where the bottom...
  2. Dpearson

    N240BP

    Oh wow Donna! Thank you for sharing the details of the incident. I'm so glad Dennis will be OK. Hardware can be replaced, people not so much. It sounds like you both handled the situation really well. Dennis instantly became a test pilot once the cowl separated, and his training and skill led to...
  3. Dpearson

    Tell us what you did today on your Bearhawk Project

    I'm working on my fuselage rotisserie. There's so many great designs on this forum! Thanks to all who documented them. I'm not planning on U-Joints. I will get the axis of rotation lined up "well enough" and rely on slop in the engine stand and tail support to do the rest. A friend in my local...
  4. Dpearson

    Back Electrical Fuel Pump O-540 with Carb

    Since the wings are well above the carburetor: Would abandoning the mechanical fuel pump and going gravity feed to the carburetor be an option? I think many Bearhawks are flying with that configuration. My setup is mechanical fuel injection, IO-540, so an electric boost pump is required. I...
  5. Dpearson

    Bearhawk Fly In: 17 October 2026

    I'm in! Since my BH4 isn't yet flying I will fly airlines, arriving ROA late morning on Friday, departing late Saturday afternoon. Campfire, music, and learning "Bearhawk stuff" all sound like great fun.
  6. Dpearson

    Best way to install countersunk nut plates

    Hi Allen, I had the exact same problem you described when I started. When dimpling the rivet holes in the "arms" of the K1000 nutplates, the female side of my dimple die was crashing into the center (threaded) portion of the nutplate, causing the arm to bend. This was a particular problem on the...
  7. Dpearson

    Welcome to the New Forum Software! Post Questions and Problems Here

    @jaredyates it is working like a champ! Thanks for all you do to support the Bearhawk community.
  8. Dpearson

    Tell us what you did today on your Bearhawk Project

    Finished fuselage fuel lines except for one connection that will be done just before interior fabric. Started fitting floor boards.
  9. Dpearson

    Fuel T at front doorposts

    I'm struggling with placement and orientation of the AN804-6D bulkhead tee where the fuel lines come together at the front doorposts (Station B-P). It seems that if I just drill the former and install the T as shown in the Bearhawk Book (image attached here), I will end up with a localized low...
  10. Dpearson

    Tell us what you did today on your Bearhawk Project

    Time to reawaken this thread! I've hit a major milestone on my 4-place "A" model QB, having completed the majority of the "stuff" related to tailfeathers and things aft of the cabin that needs doing before covering. Control cables made up, elevator balances cast, VHF nav antenna mounted in...
  11. Dpearson

    Tell us what you did today on your Bearhawk Project

    Got the elevator balances cast and trimmed for weight.
  12. Dpearson

    Aileron hinge bearings

    The bearings used in my 4A match the 4th picture you posted - MS21152-2 (RE4H6 or REP4H6) rod end bearings which slide into the bearing mount tube and are cross-drilled and then riveted in place. The ones that came with my kit were unserviceable and I couldn't find replacements on the open...
  13. Dpearson

    Elevator Horn/Shackle Interference

    Hi all, I'm seeing interference between the AN115-21 shackle and the flange at the top of the elevator horn, when the elevator is deflected down below the neutral position. At the "full down" elevator position, the shackle is about 35 degrees off line from the cable: ​ The previous builder...
  14. Dpearson

    Tell us what you did today on your Bearhawk Project

    In the "how to add months to your build" category, I've at long last found a method for making wingtip lenses to cover the bays where I will mount my FlyLEDs RV-10 "The Works" lighting system. Much of the time was spent kluging together a vacuum forming system, as my local lead on vacuum...
  15. Dpearson

    Gear Leg brake fittings for 90degree turn out at caliper end

    On my BH4 I ended up making a little bracket to position the fitting the way I wanted it.
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