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Program a worksheet to keep track of rolling 24 hours and 30 day periods

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    Question Program a worksheet to keep track of rolling 24 hours and 30 day periods

    Hello,

    My name is Billy, I am new here to the forum.

    I am a total newb to excel, I have used it in a limited way in the past for keeping track of inventory as well as keeping track of grades and such for students.

    I am now working as a part 121 cargo pilot and would like to use it to keep track of rest rule requirements to make sure that I am legal to fly per the Federal Aviation Regulations.

    Below are the Federal rules that I am dealing with...

    Sec. 121.503 Flight time limitations: Pilots: airplanes.
    (a) A certificate holder conducting supplemental operations may schedule a pilot to fly in an airplane for eight hours or less during any 24 consecutive hours without a rest period during those eight hours.
    (b) Each pilot who has flown more than eight hours during any 24 consecutive hours must be given at least 16 hours of rest before being assigned to any duty with the certificate holder.
    (c) Each certificate holder conducting supplemental operations shall relieve each pilot from all duty for at least 24 consecutive hours at least once during any seven consecutive days.
    (d) No pilot may fly as a crewmember in air transportation more than 100 hours during any 30 consecutive days.
    (e) No pilot may fly as a crewmember in air transportation more than 1,000 hours during any calendar year.

    Sec. 121.505 Flight time limitations: Two pilot crews: airplanes.
    (a) If a certificate holder conducting supplemental operations schedules a pilot to fly more than eight hours during any 24 consecutive hours, it shall give him an intervening rest period at or before the end of eight scheduled hours of flight duty. This rest period must be at least twice the number of hours flown since the preceding rest period, but not less than eight hours. The certificate holder conducting supplemental operations shall relieve that pilot of all duty with it during that rest period.
    (b) No pilot of an airplane that has a crew of two pilots may be on duty for more than 16 hours during any 24 consecutive hours.


    Now, does anyone have any idea the best way to program a worksheet to keep track of rolling 24 hours periods? Or Rolling 30 day periods? Or finally, how to get it to automatically double "the number of hours flown since the preceding rest period, but not less than eight hours?"

    It's a tall ask I know. Any guidance would be appreciated.

    Thanks everyone!

    Billy
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    Last edited by William Jones; 02-27-2021 at 01:48 PM.

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    Forum Moderator AliGW's Avatar
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    Re: program a worksheet to keep track of rolling 24 hours periods?

    Administrative Note:

    Welcome to the forum.

    We would very much like to help you with your query, however the thread title does not really convey what your request is about. Tell us what you are trying to do, not how you think it should be done.

    Please take a moment to amend your thread title. Make sure that the title properly explains your request. Your title should be explicit and not be generic (this includes function names used without an indication of what you are trying to achieve).

    Please see Forum Rule #1 about proper thread titles and adjust accordingly. To edit the thread title, open the original post to edit and then click on Go Advanced (bottom right) to access the area where you can edit your title.

    (Note: this change is not optional. As you are new, I have done it for you. No more crazy titles, please!)
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    Forum Moderator AliGW's Avatar
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    Re: program a worksheet to keep track of rolling 24 hours periods?

    Welcome to the forum.

    There are instructions at the top of the page explaining how to attach your sample workbook.

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