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    Re: prices of N.A.
    From: Bill B
    Date: 2012 Sep 23, 02:04 -0400

    Gary
    
    Examples below, but to the point are engine hours based on a time clock
    or rpm?
    
    A private aircraft is for the majority of its use operating withing a
    relatively narrow range of RPM's, as does a sail craft using its "Iron
    Genny." In my experienece also true for a commercial farming tractor of
    combine.
    
    
    On 9/22/2012 5:34 PM, Gary LaPook wrote:
    > Airplanes have an hour-meter (a clock that only runs when the engine is
    > running) to keep track of engine hours for required maintenance
    > purposes, and for billing for rental of the aircraft. These are made by
    > the Hobbs company and are usually called "Hobbs meters." You buy one
    > from the aircraft supply store and they are about a hundred dollars. The
    > exact same meters are also used on boats for the same reasons and if you
    > buy it at the marine store it is about fifty dollars. If you go down to
    > your local "Farm & Fleet" to buy one for your farm tractor the exact
    > same meter is seventeen bucks!
    
    
    
    
    

       
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