fbpx
Login

 

Jump to Forum..

how are OPERATING HOURS defined?

in General Tech Discussion 6 years ago

  • Re: how are OPERATING HOURS defined?

    by » 6 years ago

    The engine would have 25 "Operating Hours" and be due for an oil change.
    The Airframe would have Zero "Time in Service" as it never saw any flight loads.
    This helps the airlines where sitting in line for an hour waiting for a clearance in a snowstorm becomes significant toward the 100 hr inspection cycle.

    In the GA world, we are often airborne 5 minutes after engine start and don't care all that much if the100hr is performed 5 hours too soon.
    The annual inspection usually happens before most GA aircraft ever reach 100hrs for the year.
    And if you do not fly "For Hire" there is no 100 hr inspection anyway.

    Bill Hertzel
    Rotax 912is
    North Ridgeville, OH, USA
    Clicking the "Thank You" is Always Appreciated by Everyone.

      
    Report

  • Re: how are OPERATING HOURS defined?

    by » 6 years ago

    25hrs of taxi time is not normal, odd you might say :)
    The FAA sets the rules that the whole world copies/follows, the definition is simple and works for the majority.
    The 915iS Line maint manual already follows this method.I bet the rest of the 9-series manuals will be revised as well.
      
    Report

  • Re: how are OPERATING HOURS defined?

    by » 6 years ago

    The FAA defines "Time in Service" as Flight Time.

    In the Rotax 915 manual, Rotax washes their hands of the whole affair.
    They accept Flight Time, Hobbs Time, Tach Time, and even Master-Switch Time as acceptable means to record Operating Time.
    Use whatever method is local common practice, but be consistent about it.

    It is not like Engine Oil suddenly turns into Alien Blood after 25.5 hours!

    Bill Hertzel
    Rotax 912is
    North Ridgeville, OH, USA
    Clicking the "Thank You" is Always Appreciated by Everyone.

      
    Report
You do not have permissions to reply to this topic.
Related Topics
Title Category Replies
Operating Hours monitoring 912iS Technical Questions 6
Use of oil during initial 25 hours of new and overhaul engines 912 / 914 Technical Questions 8
Site Offline early hours of Wednesday Morning Rotax-Owner Community 0
Site Offline early hours of Saturday Morning Rotax-Owner Community 0
912 ULS Carb Choke operating cable assemblies General Tech Discussion 1
Follow Us

Recent Videos

Safety First!

 

To receive critical-to-safety information on your ROTAX Engine, please subscribe to
ROTAX-OWNER.COM

Prize Giveaway!


SUBSCRIBE NOW
to automatically enter this years draw!

Login