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    Medical masks have been used to minimize...

    Medical masks have been used to minimize transmission of disease for over 100 years; there are pictures of doctors in the Civil War era wearing them. Until a year ago, there was no...
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    And other people react differently. Some have a...

    And other people react differently. Some have a longer asymptomatic time. It also hits people differently. You recovered from Covid...does that mean you don't believe ANYONE has died from it? ...
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    The problem with Covid is that you don't *know*...

    The problem with Covid is that you don't *know* if you're sick. There can be 3-5 days where you're infectious and don't realize you have it.

    Are masks perfect? Of course not. But they do reduce...
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    Good data, thanks. Is there an equivalent one...

    Good data, thanks. Is there an equivalent one for the 2009 H1N1 pandemic? I'd like to get confirmation that comorbidities are NOT included in the 2009 CDC tally of US deaths. Doing searches on...
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    The only outbreak of similar lethality was the...

    The only outbreak of similar lethality was the Spanish Flu over 100 years ago; EAA wasn't around then. The polio outbreaks in around 1955 come to mind, but considering EAA didn't even have a...
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    It's exactly the point. Reactions should be...

    It's exactly the point. Reactions should be based on lethality, not on mere contagion rate. I'd expect organizations to react differently to green-arm cooties with a near-zero rate of deaths that a...
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    How many fatalities? Were they near 400,000? ...

    How many fatalities? Were they near 400,000?

    (hint: No.)

    Ron Wanttaja
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    Yep, makes sense. 8789 You'll notice how the...

    Yep, makes sense.

    8789
    You'll notice how the NTSB guys like to round up... spikes at 100, 150, 200, etc.

    Ron Wanttaja
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    Interesting suggestion. Here's a cut at it, for...

    Interesting suggestion. Here's a cut at it, for aircraft types with 50 or more accidents from 1998 through 2019.

    Fatal Rate: Percentage of ALL accidents of that type that resulted in at least...
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    The NTSB lists the airframe hours on about 75% of...

    The NTSB lists the airframe hours on about 75% of the homebuilt accidents. My Cessna 172 accident database shows about 82% of the accidents had aircraft hours.

    Otherwise, the average GA aircraft...
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    Don't disagree with you; after all, that's how I...

    "but if you're looking for a metric, the number of fatal accidents every year is a pretty good one."

    Only if if the active number doesn't change over time. If the active number declines by half...
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    It works better in a Chapter meeting format where...

    It works better in a Chapter meeting format where I can provide more background.

    The upshot is:

    Party "A" determines the number of active homebuilt aircraft based on responses from aircraft...
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    I'd prefer to state that as, "The FAA estimates...

    I'd prefer to state that as, "The FAA estimates that the active number would be two thirds of the registration total from post one."

    From 2010 to 2013, almost 8,000 homebuilts...about 24% of the...
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    Please note I had a typo in the above. The...

    Please note I had a typo in the above. The actual number of Wittman Tailwind hits I got was 200, not 2,000. Somehow I'd replaced the period with a zero.

    Ron Wanttaja
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    I get about 200. My filter designates it as a...

    I get about 200. My filter designates it as a Wittman Tailwind if the aircraft model is a "Tailwind" or a "Tail Wind" or variations of W-8, W-9, or W-10 (with dash, or with a space, or no dash or...
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    I guess I'd look at this from the structural...

    I guess I'd look at this from the structural point of view: What's the tension a "spinning" turnbuckle can apply, and how likely is it to break a piece of safety wire?

    Let's look at the...
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    Sounds like you used to receive the annual FAA...

    Sounds like you used to receive the annual FAA General Aviation Survey. They use the survey to estimate a variety of factors related to GA activity.
    ...
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    Even better, SEVEN Piets were added to the rolls...

    Even better, SEVEN Piets were added to the rolls in 2020. Four were new builds, three were previously-deregistered airplanes returned to the registry.

    Ron Wanttaja
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    A bit of detailed information on the homebuilt...

    A bit of detailed information on the homebuilt fleet sizes. The previous posting will show the net change between years, but this shows how many EAB aircraft were actually added in a given year.

    ...
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    Homebuilt Aircraft Fleet Sizes

    Per my usual practice, I downloaded the FAA Aircraft Registration database on 31 December. Here are the sizes of the number of aircraft that are registered as Experimental Amateur-Built. Note this...
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    And an addition.... If you've got Amazon...

    And an addition....

    If you've got Amazon Prime, look for "Across the Pacific." It's a three-part documentary on the founding of Pan Am. It has a combination of talking heads and actors...
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    Obit in the Aspen Times: ...

    Obit in the Aspen Times:

    https://www.aspentimes.com/obituaries/obituary-william-sexton-greenwood/

    Ron Wanttaja
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    A necropost, but this is pretty cool. As part...

    A necropost, but this is pretty cool.

    As part of their fundraising efforts, the Silver Spitfire folks are selling a print of the Spitfire and Oregon's Mount Hood:
    8760

    Information at:...
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    Weather. Chuck mentions this in his...

    Weather. Chuck mentions this in his autobiography; he was quite disappointed that they didn't get a single airplane to fly over his ceremony....

    Ron Wanttaja
  25. A bit of a follow-up on this. I updated my...

    A bit of a follow-up on this.

    I updated my Solidworks tonight. Pretty straightforward, except for one thing.

    The EAA user instructions provided a 24-character activation code in a continuous...
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