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  1. BJC

    Lunar time

    There are complications involved in future lunar missions. https://www.theguardian.com/science/2024/apr/02/moon-nasa-coordinated-lunar-time BJC
  2. BJC

    Sun n Fun 2024

    April 9 through 24. https://flysnf.org/ I’ll be in the OX5 clubhouse every morning except Sunday. Stop in for coffee and say hello. BJC, aka Byron Covey
  3. BJC

    Aqua Glider

    There was a homemade biplane glider, intended to be towed behind a boat, with a floating hull that featured water skis. It was in one of the mechanics / science magazines. I’ve only seen pictures, not the actual Aqua Glider. Some info here https://en.wikipedia.org/wiki/Explorer_PG-1_Aqua_Glider...
  4. BJC

    FAA Special Airworthiness Information Bulletin, TCW Technologies backup battery

    Many E-AB with EFIS displays use a backup battery. https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID137303780920240213191443.0001?modalOpened=true?modalOpened=true BJC
  5. BJC

    SR-71

    Interesting: https://www.cia.gov/readingroom/docs/CIA-RDP90B00170R000200280025-6.pdf BJC
  6. BJC

    Stadium fly-over.

    BJC
  7. BJC

    Concordia

    Question for VB, BoKu, and other sailplane aficionados: what became of Dick Butler’s Concordia? Any measured performance specs available? Thanks, BJC
  8. BJC

    Magazine article

    There is a nice article by HBAer Mark McKibben in the November / December Sport Aerobatics. Nice article and good looking airplane, Mark. BJC
  9. BJC

    Wing lower surface discontinuity

    Is there any information about the effects of a paint line, for example, a spanwise stripe, at 25% chord on the lower surface of a sailplane wing? Thanks. BJC
    • BJC
    • Thread
    • Replies: 10
    • Forum: Soaring
  10. BJC

    Photos aloft

    The discussion about crossing the Rockies included some nice photos of the Rockies. This thread is a place to post your photos aloft that you like or that others might find interesting. Please ID the area / subject of the photo. I'll start with some photos from crossing the Rockies in late...
  11. BJC

    Parts Wanted Recommended Vendors

    Several people have posted about a favorable transaction with a vendor, some from the boat building or other industries. While we don’t need another thread debating our satisfaction with Aircraft Spruce and Speciality, I think that we could benefit from each other’s favorable experience with...
  12. BJC

    PPG Mini Merlin

    RV-7 with a PPG Mini Merlin up front. BJC
  13. BJC

    Vortex shedding

    Neat video - even if this redneck had difficulty understanding the narrator - showing examples of vortex shedding. BJC
  14. BJC

    Primer or paint for small parts

    Looking for recommendations, based on first hand experience, for a primer or paint to use for corrosion proofing 4130, 2024, and 6061 (I know) parts. Ideally, something in a rattle can. I’ve used Moeller 025802 Green Zinc Phosphate Primer - Moeller 025802 - Marine Spray Paints - Paint -...
  15. BJC

    PVC protective sheet on aluminum

    I have some 2024-T3 0.063 sheet with a PVC (I think?) coating that is almost impossible to remove. I've tried MEK, acetone, heat and scraping with a wooden tongue depressor sharpened like a chisel. The coating is not the blue type seen on Van's kits. It is white, with the adhesive side black...
  16. BJC

    Cleveland master cylinder 10-19D

    Ref. https://www.parker.com/parkerimages/Parker.com/Literature/Aircraft%20Wheel%20&%20Brake%20Division/Kit%20Documents/199-505%20Kit.pdf The clevis, item 17, appears to be designed to allow adjustment of the overall length by altering how deeply it is screwed into the piston rod, item 3. Is...
  17. BJC

    Glasair Aviation ceasing USA production

    Stoddard-Hamilton went through bankruptcy and emerged as New Glasair. New Glasair was sold to Jilin Hanxing Group and renamed Glasair Aviation. Glasair Aviation sold all rights to the Glasair aircraft to someone in Australia, but kept the Sportsman 2+2 and, to a limited degree, continued to...
  18. BJC

    I wish that I had known ……

    A thread to share things that you have learned, about anything to do with building, that you wish that you had known when you started. Examples: I wish that I had known how useful a 1” belt / 9” disc sander is. Would have bought one long ago, and saved lots of time. You really can use 60 grit...
  19. BJC

    Oshkosh 2023

    Two months until Oshkosh 2023 starts. As usual, I will be at Homebuilders Headquarters early each AM, hopefully having coffee served by Mark Z. Old hands know the routine. Those of you who haven’t yet joined us can find us sitting at a picnic table with a small place card reading HBA.com...
  20. BJC

    Shock cooling

    Some years ago, I was flying with the owner of a E-AB, doing some gentleman aerobatics, and reduced power in a maneuver. The owner went ballistic because his “shock cooling monitor” went into alarm at a ridiculously low setting. Has anyone here had actual, personal, experience with rapid...
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