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Thread: Hot Enough

  1. #1
    RVBottomly's Avatar
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    Hot Enough

    Here at the downstream end of Hell's Canyon it's gotten hot. I've done some central air triage--replacing fuses, a condenser, and lubricating a bearing on the fan.

    But the biggest insult was this:

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    Melted the glue right off as I walked on the concrete walkway from the shop to the house.

    118F in the shaded carport. Who knows in direct sunlight? The alcohol thermometer in my little shed blew its top at 130F.

    Haven't been flying lately....
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    SJ's Avatar
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    Wow...
    "Often Mistaken, but Never in Doubt"
    ------------------------------------------

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    BC12D-4-85's Avatar
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    Move to Alaska......we're having a cooler than normal summer. It's been more than a few decades since I seen road tar or footwear melting.

    More on the way. Note the Outlooks here and below: https://www.cpc.ncep.noaa.gov

    Gary
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    spinner2's Avatar
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    I made a flight into Idaho yesterday early in the morning. Density Altitude was +2500' at 6:00 AM Idaho time.

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    The AV-20 computes DA. MTV started a thread a week or so ago on its bigger brother the AV-30 which does the same and more. It is an eye opener to see DA in real time at these high temperatures we're having.
    "Fast is fine, but accuracy is everything." Wyatt Earp
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  5. #5

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    Quote Originally Posted by spinner2 View Post
    I made a flight into Idaho yesterday early in the morning. Density Altitude was +2500' at 6:00 AM Idaho time.

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    The AV-20 computes DA. MTV started a thread a week or so ago on its bigger brother the AV-30 which does the same and more. It is an eye opener to see DA in real time at these high temperatures we're having.
    Do you like the AV-20. Would you do it again or opt for the -30?

  6. #6
    RVBottomly's Avatar
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    Quote Originally Posted by BC12D-4-85 View Post
    Move to Alaska......we're having a cooler than normal summer. It's been more than a few decades since I seen road tar or footwear melting.

    More on the way. Note the Outlooks here and below: https://www.cpc.ncep.noaa.gov

    Gary
    You are tempting me. Granddaughter in Homer.

  7. #7
    RVBottomly's Avatar
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    A little cooler today. Only 115F in the shade. But I remembered to try something I thought about last winter. I was curious how the epoxy joints would hold up in the heat on my wing ribs.

    I set a rib out on concrete for a couple of hours. The dial thermometer got over 150F. I was pleased to see that the epoxy joints were solid, no hint of softness anywhere.

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    Quote Originally Posted by spinner2 View Post
    I made a flight into Idaho yesterday early in the morning. Density Altitude was +2500' at 6:00 AM Idaho time.

    Click image for larger version. 

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    The AV-20 computes DA. MTV started a thread a week or so ago on its bigger brother the AV-30 which does the same and more. It is an eye opener to see DA in real time at these high temperatures we're having.
    Maybe it’ll kill all the flies and mosquitoes so I can go to Fish Lake. I’m hoping early September if the whole country is not on fire.


    Sent from my iPhone using Tapatalk

  9. #9
    spinner2's Avatar
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    Quote Originally Posted by KevinJ View Post
    Do you like the AV-20. Would you do it again or opt for the -30?
    The -30 is for a 3-1/8” hole and I just had a 2.25” hole. The -30 has more features. Both compute DA. I’m happy with the -20.
    "Fast is fine, but accuracy is everything." Wyatt Earp

  10. #10

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    I have a Garmin G3X system that displays density altitude. It's very useful but, because of the OAT probe location, it can give misleading DA values before engine start. An OAT probe exposed to direct sun will give a much higher reading than ambient if there is no airflow. Accuracy is much improved when exposed to prop wash for a few minutes.

    If you install a system that uses an OAT probe to compute density altitude then think carefully about where the probe should be mounted.

  11. #11
    BC12D-4-85's Avatar
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    Quote Originally Posted by RVBottomly View Post
    You are tempting me. Granddaughter in Homer.
    You might be very pleased living in that area either seasonally or permanently. Boating-fishing-camping-flying or just doing important things. Summer tourism is common but likely not any worse than the Lower 48's typical recreational areas.

    Gary

  12. #12
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    Quote Originally Posted by RVBottomly View Post
    Here at the downstream end of Hell's Canyon
    At least it is aptly named…
    Proud owner of a collection of airplane pieces (sometimes in one big piece) known as the Oklahoma Kid.
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  13. #13
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    All time record temps in western Washington.
    It hit 100 at my airport in Port Townsend,
    and 110 or maybe above in the Seattle area.
    The TV news was reporting "buckling pavement" on I-5 & elsewhere due to the extreme temps.
    I wanna call bullshit on that.
    It regularly gets that hot regularly in places like Las Vegas,
    & I've never heard of it causing pavement to buckle in those places.
    ??
    Cessna Skywagon-- accept no substitute!

  14. #14
    180Marty's Avatar
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    It regularly gets that hot regularly in places like Las Vegas,
    & I've never heard of it causing pavement to buckle in those places.
    ??
    I think buckling is hard to figure. I experienced it 2 years ago on our bike trail. I ride to the airport numerous times a day and in the morning all was fine. That afternoon I'm riding along and saw it in time or I'd have gone airborn. It gets to 100 once in awhile and had been in previous years but for some reason it happened that day.

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    Pavement is like most anything else, normal expansion large or small does not bother it. Once you heat it and expand beyond a normal cycle for the year it can/will react differently and buckle if it does not have expansion space.
    DENNY

  16. #16
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    Buckling of the interstae here in MN a few years ago.....The Audi at 0:20 looks well balanced!


  17. #17
    mvivion's Avatar
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    Reminds me of Robin Williams in "Good Morning, Viet Nam": "It's hotter than a snakes ass in a wagon rut!".

    MTV
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