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  1. 60NUAGE

    FAA AC 25.562-1B Static Interface Loads

    Many thanks for your kind reply. BragiBaldursson
  2. 60NUAGE

    FAA AC 25.562-1B Static Interface Loads

    Thank you so much for your kind comment. BragiBaldursson Does the term "aircraft limit" in the second paragraph mean the requirements of PART 45.561? And I presume that the "SAE Standard" in the last sentence refers to "Aircraft Seat Design Guidance and Clarifications ARP5526E."
  3. 60NUAGE

    FAA AC 25.562-1B Static Interface Loads

    rb1957 Thank you for your kind comment. I am Not a engineer and No experience for seat design. Completely layperson in the seat design. But I just what to know about test requirements of aircraft seat design. It is hard for me to go further in AC 25.562-1B with many unfamiliar terms. 'aft...
  4. 60NUAGE

    FAA AC 25.562-1B Static Interface Loads

    Thank you so much for your kind answer. SparWeb. I really appreciate it. Now I became to understand the basic concept of 'interface load' by your kind explanation. And I know I have a long way to have a solid grip on this subject as you mentioned. It is very difficult for me to understand the...
  5. 60NUAGE

    FAA AC 25.562-1B Static Interface Loads

    WKTaylor Thank you so much for your comment. I can say that I don't understand the concept of 'interface loads' actually. Could you explain me what is the 'interface loads' of the seat structure? I think I have to start from understanding of this.
  6. 60NUAGE

    FAA AC 25.562-1B Static Interface Loads

    Let me give a question about the aircraft seat test criteria. FAA AC AC No: 25.562-1B Dynamic Evaluation of Seat Restraint Systems and Occupant Protection on Transport Airplanes d. Structural Tests for seats with the family design concepts (see §§ 25.562(c)(7) and (8)). (1) Substantiation of...
  7. 60NUAGE

    Compression Warp

    Thanks so much. MintJulep. FAA SAIB helped me to understand the meaning of the word, but I still don't know what it is.
  8. 60NUAGE

    Compression Warp

    Shame on me!!! I found that it is not a part of propeller. It is a kind of maintenance technology for propeller. But it make me more complicated with technology. I wonder what kinds of technology for what?
  9. 60NUAGE

    Compression Warp

    Could anybody help me understanding the 'compression warp' of propeller of Hamilton Sundstrand 568F? - What part of propeller is it? Your kind answer or comments will be highly appreciated.
  10. 60NUAGE

    FAR PART 25.365 e) Formula

    Thank you for your comment, rb1957. I wonder how the diameter of 44.6ft long became the denominator for the formula. B747 is just 20ft. I guess some model plane was presumed for the formula at the time of rule making.
  11. 60NUAGE

    FAR PART 25.365 e) Formula

    Hi. IS THERE ANYONE WHO CAN ANSWER MY INQUIRY ABOUT THE FAR PART 25.365 e) The size Ho must be computed by the following formula: Ho = PAs Where - Ho = Maximum opening in square feet, need not exceed 20 square feet. P =As/6,240 + .024 As = Maximum cross-sectional area of the pressurized shell...

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