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  1. J

    Gusty winds stop plane midair.

  2. J

    Oil screen on O-300 vs oil filter adapter

    The engine has under 1600 hours since last overhaul. Oil analysis trend looks good to my untrained eyes (attached if interested.) The plane will probably be flown between 100 to 200 hours per year (5 person flying club.) With only a screen the oil changes would be about every 25 hours. My...
  3. J

    Oil screen on O-300 vs oil filter adapter

    Expect to close on the purchase of a 1956 Cessna 172 soon. It has the original Continental O-300 with an oil screen. Was thinking of installing a spin-on oil filter adapter, but not sure of all the pros and cons.
  4. J

    Best modern landing and taxi lights?

    Don't know but curious as to suggested possibilities..
  5. J

    New small single engine jet

    Sonex is working on a two-seat variant of their single seat SubSonex jet. It's designation is JSX-2T and I presumea competitor of the above product. https://www.sonexaircraft.com/subsonex/
  6. J

    How does a StrikeFinder work?

    Just realized both patents are expired and they contain circuit diagrams. DIY lightning detectors anyone?
  7. J

    How does a StrikeFinder work?

    Here are some patents: https://patents.google.com/patent/US4023408A/en https://patents.google.com/patent/US5295072A/en From the first patent: "The azimuth of the display is indicative of the azimuth of the electrical activity. The distance from the reference location to any illuminated...
  8. J

    Question on liability of leasing a private airplane

    I plan to lease a personally owned airplane to an incorporated non-profit flying club for its exclusive use. I've been pondering what needs to be done, if anything, to limit my liability if harm is caused by the airplane while used by a club member. According to 49 U.S. Code § 44112 - Limitation...
  9. J

    I guess the passengers are conducting the pre-flights now?

    A fairing doesn't seem likely to be in a MEL.
  10. J

    Unmanned commercial craft to the moon?

    One company is after prize money: "Astrobotic Technology inc., commonly referred to as Astrobotic is an American private company that is developing space robotics technology for lunar and planetary missions. It was founded in 2007 by Carnegie Mellon professor Red Whittaker and his associates...
  11. J

    B1 Bomber accident or explosion at Ellsworth AFB in SD

    According to locals posting to nextdoor.com a B1 bomber allegedly crashed while landing on the runway at Ellsworth AFB. It caught fire and the 4 crew members safely ejected. Neighbors reported sounds of explosions. None of that info is officially confirmed.
  12. J

    Joke Thread

  13. J

    Practically Free Avionics

  14. J

    Single engine airplane affordability peaked around '73/'74

    Stagnating economy may have been one possible cause. I did start investigating interest rates and they did spike in the eighties (see attached graph created from https://fred.stlouisfed.org/series/PRIME#) Aircraft being financed would put a crimp on sales during high interest periods. If, as is...
  15. J

    Single engine airplane affordability peaked around '73/'74

    Here's a bit of research I did on the affordability of single engine airplanes from 1956 to 2022. I defined an "affordability" index as the number of years of household income it would take to buy a new Cessna 172 at the introduction price for the year of purchase. The numbers used were NOT...
  16. J

    Martin Hellman’s page about soaring

    He used to hang out in the Usenet soaring group which I read and occasionally posted. I recall having a discussion with him about Ralph Merkel's contribution to public key cryptography (If I recall correctly, Hellman said Merkle's paper on the subject was allegedly difficult to understand, so...
  17. J

    VORs with voice identifiers?

    Just realized that the first sentence I quoted doesn't use the word "sectional" and indicates the audio includes the word VOR. The section above it says: Most VORs are equipped for voice transmission on the VOR frequency. VORs without voice capability are indicated by the letter “W” (without...
  18. J

    VORs with voice identifiers?

    I did a quick scan of VORs in my area then spot-checked around the country and didn't see any with VOR after the name. Then I located and downloaded FAA data AIRNAV data files but they don't seem to have a field that designates VORs with voice IDs, unless it is buried in the type_code or some...
  19. J

    Possible microburst damages three hangars and eight aircraft

    Local story of recent storm. Belle Fourche airport pummeled by storm damages three hangers and eight aircraft
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