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  1. J

    MOSAIC (Modernization of Special Airworthiness Certificates) NPRM Released

    Story here: https://bydanjohnson.com/mosaic-news-faa-running-ahead-of-schedule-unbelievable-proof-here-now/ It's a big deal! Edit to add that according to the copy of the NPRM on Dan Johnson's web site the actual NPRM will be published by the FAA on July 24 - during Oshkosh. The FAA will no...
  2. J

    Why requiring medical certificates may not improve aviation safety

    I believe this PDF is the entirety of the 1926 regs: https://ia800904.us.archive.org/12/items/1926USDeptOfCommerceAirCommerceRegulations/1926%20-%20US%20Dept%20of%20Commerce%20-%20Air%20Commerce%20Regulations%20.pdf
  3. J

    Why requiring medical certificates may not improve aviation safety

    Medical requirements appear in the 1927 regs (see pages 29 and on): Air Commerce Regulations Effective December 31, 1926 But those regs appear to have been developed from the Air Commerce Act of 1926. As far as I can tell, prior to that act civil aeronautics was self-regulated. Edit to add that...
  4. J

    Flaming Gorge and mountains south of Jackson Wyoming

    Nice photos! However, even without struts the wings get into the pictures. I think you need a plane that doesn't have those things. ;)
  5. J

    AA Embraer 170 - Montgomery, AL - 31 Dec 22

    The size of the fine seems rather small - perhaps low enough that OSHA hoped the airline wouldn't find it worth contesting? Have no idea if it would affect the success of any civil wrongful death lawsuit by the family.
  6. J

    A History of Airport Codes

  7. J

    How does splitting time building help costs?

    Perhaps it is meant for CFIs who want to build time toward airline requirements. Just need any student who may also be a CFI who wants to build time, so one is in training while one acts as instructor. Dubious, but that is all I can think of. Somebody asked a question about that scenario here...
  8. J

    Cessna Citation - Montebello, VA - 4 Jun 23

    From https://apnews.com/article/virginia-plane-crash-victims-sonic-boom-8ae61275a56d4b5b64b03047f7f9d84c?utm_source=facebook&utm_medium=news_tab&mibextid=Zxz2cZ#lil26qj14vvbtjx8q3j: "Rumpel also said it is common practice for pilots to put their destination, along with an “emergency return...
  9. J

    Cessna Citation - Montebello, VA - 4 Jun 23

    I plugged in N611VG into https://globe.adsbexchange.com/ and overlayed the IFR High Route chart and found that the plane started its turn at the SARDI intersection (you'll need to manually switch the map to IFR Enroute High mode)...
  10. J

    Cessna Citation - Montebello, VA - 4 Jun 23

    Well, that turned political pretty quickly:
  11. J

    Oshkosh 2023

    One factor is the travel time to my brother's house in Arden Hills by car. Anoka is 9 minutes while Crystal is 17 minutes. Downtown St. Paul airport is 15 minutes.
  12. J

    Oshkosh 2023

    I'll look into it.
  13. J

    Oshkosh 2023

    It is the same amount of time as my last visit. I'll meet up with two brothers and a college buddy of my oldest brother in Arden hills, MN and we drive to Oshkosh starting early on Tuesday (get in shortly before noon) and drive back on Thursday morning. We stay at Ripon College. Previously I...
  14. J

    Oshkosh 2023

    I plan to be there Tuesday (25th) and Wednesday (26th).
  15. J

    I Must Have Bad Taste in Pictures

    You have different tastes, not bad tastes.
  16. J

    I Wonder if Quinn the Eskimo Ever Got There

    The wikipedia page doesn't say (https://en.wikipedia.org/wiki/Quinn_the_Eskimo_(Mighty_Quinn)) but I see now it has been covered by a lot of musicians. Haven't heard it in years.
  17. J

    But the power requirements go up as the cube of the speed

    That is pretty much it. When just plowing through a fluid (no lift) and you want to double the speed you can either use 8 times more power or cut the drag in half. It is typically better to know ways to reduce drag than ways to increase power density, so years ago I spent $75 on a copy of...
  18. J

    The Latitude Nut

    My guess is that it would be set to some intermediate latitude like 45° or perhaps a bit south of that to minimize the drift for most areas of the U.S. At about 14 minutes into this video the latitude nut is discussed. The whole video is informative about other interesting details on the...
  19. J

    The Latitude Nut

    Went up to do some pattern work and to check the drift or precession of the club plane's Heading Indicator (HI). After engine start I set the HI to the magnetic compass value, It was about ten minutes later that I was at the end of the runway ready to take off. The HI differed from the compass...
  20. J

    Walt Disney 1944 presentation on 100 Octane aviation fuel

    "Octane numbers are a scale for rating the power gasoline will deliver." That's a Mickey Mouse explanation.
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