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      Echo Mike


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      Post #71303, posted on 01-02-2019 GMT-5 hours    
      Hi all

      My choice of airliner kits ranges from the mid 1970 to the mid 1980. I never used to add the emergency exit routes on the wings as I rarely can be sure, if they are appropriate. It is often quiet difficult to find photos of vintage aircrafts in the net which shows the upper wings from the specific type /company.

      When have the exit routes got obligatory or when did the airlines or manufacturers introduce them? Is the design of the exit routes for each aircraft identic or are the companies more or less free to paint them?

      Eduard

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      Timo55


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      Post #71328, posted on 01-07-2019 GMT-5 hours    
      Hi Eduard
      Great question!
      I'm not sure exactly when overwing exit routes became obligatory. What I can tell you is that they are part of FAA Airworthiness Regulations for Transport Aircraft 25.8 series on emergency exits - specifically 25.810 on emergency egress and escape routes. These regulations appear to have been first issued in the late 1960s with some specific requirements on escape routes being applied to aircraft types that received 'type certification' on or after 1972. Overwing escape routes are certainly evident in pictures from the mid 1970s.
      Regarding design of escape routes, the 25.810 FAA regulation sets out basic requirements, but specific detailed requirements for an aircraft's escape route markings are included in its type certification. So escape routes should be identical for each aircraft sub-type - i.e. all 737-300s should be the same, all 737-400s, all A320s and so on.
      European JAR regulations are the same as FAA so there is effectively a common USA & European standard.
      I'm sure somebody will have a more definitive answer but hope this helps in the meantime.
      Best regards
      Tim

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      Jennings


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      Post #71401, posted on 01-14-2019 GMT-5 hours    
      I think the first ones appeared in the late 1960s, and by the mid-1970s they were universal