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  2. Holding (aeronautics) - Wikipedia

    en.wikipedia.org/wiki/Holding_(aeronautics)

    A standard holding pattern. Shown are the entry (green), the holding fix (red) and the holding pattern itself (blue) In aviation, holding (or flying a hold) is a maneuver designed to delay an aircraft already in flight while keeping it within a specified airspace; i.e. "going in circles." [1]

  3. Post weld heat treatment - Wikipedia

    en.wikipedia.org/wiki/Post_weld_heat_treatment

    Holding temperature and time are governed by the material and thickness respectively. [ 4 ] [ 6 ] Regarding material thickness, longer holding times are needed for thicker materials. [ 4 ] This is to allow the material to reach a stable condition where the distribution and levels of stresses become more uniform and decrease.

  4. Expedited Funds Availability Act - Wikipedia

    en.wikipedia.org/wiki/Expedited_Funds...

    Hold type Necessary requirements Local availability Statutory: No other hold applies, can be placed almost anytime. $200 first business day following deposit, $600 second business day following deposit, remainder third business day Large deposit: Aggregate total of checks deposited into one account on one business day is greater than $5,000.00.

  5. Too hot to board: What’s the limit for sweltering airplane ...

    www.aol.com/too-hot-board-limit-sweltering...

    When the AFA petitioned the US Secretary of Transportation to set a federal limit for cabin temperatures during boarding of 80 F (26.7 C), or 85 F if in-flight entertainment screens are switched ...

  6. Tempering (metallurgy) - Wikipedia

    en.wikipedia.org/wiki/Tempering_(metallurgy)

    Tempering at a slightly elevated temperature for a shorter time may produce the same effect as tempering at a lower temperature for a longer time. Tempering times vary, depending on the carbon content, size, and desired application of the steel, but typically range from a few minutes to a few hours.

  7. List of aviation, avionics, aerospace and aeronautical ...

    en.wikipedia.org/wiki/List_of_aviation,_avionics...

    Mean time between failures: MTBSV Mean time between shop visit MTBUR Mean time between unscheduled removals MTOW maximum take-off weight: MTTF Mean time to failure MVA Minimum Vectoring Altitude MVFR Marginal visual flight rules ceiling 1000-3000′ and/or visibility 3-5 miles MX Maintenance MZFW Maximum Zero Fuel Weight

  8. Hollomon–Jaffe parameter - Wikipedia

    en.wikipedia.org/wiki/Hollomon–Jaffe_parameter

    Holloman and Jaffe determined the value of C experimentally by plotting hardness versus tempering time for a series of tempering temperatures of interest and interpolating the data to obtain the time necessary to yield a number of different hardness values. This work was based on six different heats of plain carbon steels with carbon contents ...

  9. AOL Mail limits on sending bulk mail

    help.aol.com/articles/aol-mail-limits-on-sending...

    In order to better enforce anti-spam policies, AOL does not disclose the number of recipients or emails that can be sent at one time. If you've received a notification that a limit has been met, you'll need to wait a set amount of time before you can send more emails. Most sending limit notifications inform you of how long you'll have to wait.