Announcement

Collapse
No announcement yet.

Question ID 810931

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

  • Question ID 810931

    A fundamental difference between the manoeuvring limit load factor and the gust limit load factor is, that:

    A. The gust limit load factor can be higher than the manoeuvring limit load factor.
    B. The gust limit load factor is independent of the wing's aspect ratio, whereas the manoeuvring limit load factor is not.
    C. The gust limit load factor has a fixed value for every transport aeroplane, whereas the manoeuvring limit load factor has not.
    D. The manoeuvring limit load factor is independent of the size of the aeroplane, whereas the numerical value of the gust limit load factor is laid down in the regulations.

    The correct answer is A. But in the explanation I understand that the gust limit factor must ALWAYS be higher (and not just "can be higher" like in the answer)
    Moreover the explanation says "The highest gust that must be accomodated is laid down in complex regulations", like what is said in the answer D !

    Can you please give details about the answer, thanks

    Clement

  • #2
    Hello! Can anyone provide an answer to this question?
    I am aware of the mixed diagram of the manoeuvring and gust envelope of the notes, but a simplified explanation would be appreciated.
    Thanks!

    Comment


    • #3
      Avoid getting bogged down in this stuff. Probably the most irrelevant material in the whole syllabus, of interest only to designers and test pilots in the real world.
      In the exam, remember that if one answer is definitely right, the other three must be wrong, in the eyes of the examiner.

      A designer asks the authorities for his aircraft to be certified up to a particular manoeuvring limit load factor, or g limit in pilot language. He can choose from a number of options laid down in the regulations. His aircraft can be any size or design.
      The authorities then find out what happens if, at this g limit and with full elevator already applied, the aircraft is hit by a specified gust that increases speed. The resulting increased level of g establishes the gust limit load factor.

      I would be disappointed if a question as bad as this old one appears in your exam, but it might. The one on this topic that has been reported lately is 811411.

      Comment

      Working...
      X