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  1. Bcone1381

    N62588 Phase 1 Flight Testing

    This is experimental aviation. No doubt a significant strength advantage with the CF encapsulating the foam core. Not much weight gain. So that decision has a host of merit. But a Hand Crafted foam core of course is used one time. My Patrol Kit's rounded wingtip, I assume was fabricated by...
  2. Bcone1381

    N62588 Phase 1 Flight Testing

    I have been fabricating carbon fiber Horner wing tips. I fabricated a foam wingtip as a modle. It was fradgil and I thought it would be better to have a moredurable mold. I had it scanned then had a 3d-printed a male mold fabricated. Yesterday I layed up the second wingtip. Both tips are...
  3. Bcone1381

    Cabin Door Question

    "The Bearhawk Patrol Book" cam with my Patrol plans. It is about 80 pages of lots of stuff. It shows how to build doors along with other stuff like seats, cowls, wing tips, windshield and its fairing, fuel system.
  4. Bcone1381

    Bearhawks in the News

    McFarlane emailed me there sales deals this week. Here is what they had for the opening photo.
  5. Bcone1381

    Bearhawk Fly In: 17 October 2026

    My hope is to fly down to Fincastle Friday to camp. Then I'd fly back to Michigan leaving about 2-3 pm on Saturday. Jam Session and Camp Fire sound cool.
  6. Bcone1381

    Bearhawk Fly In: 17 October 2026

    Have we promoted Bob's Fly In yet? Bob's Fly In is 17 October. I am planning on attending. Who Else?
  7. Bcone1381

    Tell us what you did today on your Bearhawk Project

    If I was a gambler, I'd bet the struts are made by Carlson. https://www.flycarlson.com/shop/p/6061-t6-aluminum-streamline-struts 6061 has good corrosion resistance. https://www.aircraftspruce.com/catalog/mepages/aluminfo.php Mine are unpainted inside and out.
  8. Bcone1381

    Oil Cooler location for an IO540

    An overview on oil coolers and Packaging....Coolers reject heat. Coolers consume Space. Different coolers have different heat rejection capabilities. The next time I am in need of an oil cooler I will call and talk with a tech guy at Pacific Oil Cooler Sercvice. I believe they can offer a...
  9. Bcone1381

    Tell us what you did today on your Bearhawk Project

    It’s quite obvious to see my cargo net is made of webbing that terminates at four places. I installed eye bolts in the floor. The Eye Bolts replaced the AN5 bolts that hold the rear seat lap belt to the threaded fitting in the floor. I will wrap the bottom terminals of the net to them using a...
  10. Bcone1381

    Toe-in and Toe-out - what are your thoughts on Jonas Marcinko video

    Man, I started watching the video. I stopped. I fly. I love the results. So what i experience is beyond schoolhouse theory...its experience felt outside in the play ground. The factory gear rigging complied with Bob's instructions. If I was in Vegas, I'd bet Bob says something darn close to...
  11. Bcone1381

    Tell us what you did today on your Bearhawk Project

    Can you re-clock the bracket that secures the mixture cable to the mounting plate?
  12. Bcone1381

    2 Unrelated Questions

    I want you guys to build exactly how you want to build. Dont think I am trying to influence with what I am about to say. A deHailland Dash 8-100 (37 passenger seats) has manual trim. The Fairchild Metroliner (19 passenger seats) has electric trim. It beeps when its activated. You'll get...
  13. Bcone1381

    Engine port confusion

    The Breather Tube just lets the case breathe. Air will flow out of that port due to blow-by. Air will have some oil droplets. Fabricate and install the Breather Hose as the last hose/line you install before you install electrical wiring. I made mine of 3/4 inch aluminum tubing and 3/4 ID...
  14. Bcone1381

    Engine port confusion

    You want to become familiar with some Lycoming documents for your engine. I consider four almost essential.... Type Ceftificate Data sheet, the Lycoming Parts Catalog, the Lycoming Operator Manual, and the Overhaul Manual. If you want to further your knowledge, download, read and make an index...
  15. Bcone1381

    Engine port confusion

    The Magenta Arrow is where the Viscosity Valve resides if one is installed. Viscosity Valve, Aka a Spring & Plunger, is removed with the oil filter mount you have installed. The Spring & Plunger is an older design, the Vernatherm is the new and your filter assembley has one.
  16. Bcone1381

    Deltahawk on the Bearhawk

    I dont know if they are producing experimental engines now. One flew in a RV-14 this summer at EAA. They advertised in this months EAA Aport Aviation magizene with a huge photo of a twin engine Piper Seminole. "FAA Certified" Piper website says the Seminole will be available with Deltahawk...
  17. Bcone1381

    Fuel Flow Transducer

    Keep it simple. I am quite confindent your fuel system with 3/8"lines will flow +25 gph. If it fails, then upgrading the tubing to 1/2" from the gasoclator to the carb will drive up the flow. BTW, I have an injected Patrol with a 180 hp PV IO-360. So I have two fuel pumps, and a red cube...
  18. Bcone1381

    Tell us what you did today on your Bearhawk Project

    I'm using a commercial grade Juky sewing machine I use for Upholstery. I did not try it on my light wieght standard machine. I think it would sew it up with a measure of difficulty though.
  19. Bcone1381

    Deltahawk on the Bearhawk

    I've been watching DeltaHawk for about three decades. Over the last 3 years....DeltaHawk has a TYPE CERTIFICATE. They dont have a PRODUCTION Certificate. I've never stopped rooting for them all the while realizing the road to mass production was a steep hill to climb. With that being...
  20. Bcone1381

    Best Tips for a New Builder

    I felt overwhelmed when I got my kit. Start by organizing the kit stuff. For me, everything fit into one of three types of containers....A fishing luer size orgainzer box, a shoe box, or a tub. That worked well. Also, as you sort out all the parts, understand what each part is. Your putting...
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