yogi_Compute Cumulative Time From LOGBOOKS!G For A/C Model In LOGBOOK!C For Time Periods In Column A

                                           Google Spreadsheet   Post  #1962
              Yogi Anand, D.Eng, P.E.      ANAND Enterprises LLC -- Rochester Hills MI     www.energyefficientbuild.com.    May 21, 2015

question  by Matt Volf:

https://productforums.google.com/forum/#!mydiscussions/docs/Gdkry18ZwbA

Need help with a formula for my pilots logbook in sheets.

I need help figuring out a formula that will sum all flight time in a specified model of aircraft during a specified time period.

Example:

I want to sum all flight time in a Cessna 172 in the past 6 months.

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Here is a link to the spreadsheet.

https://docs.google.com/spreadsheets/d/1sbANEyT6mX6wJvejWoTvkWSpKjVfKz_nssKRv-YqCeA/edit?usp=sharing

I am looking for a formula that will total all flight time (Logbook!G)  that was flown in a specific model (logbook!C) within in a specified time (past 30 days, past 6 months, whatever I specify)

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