Questions tagged [flight-envelope]

Use for flight envelope related topics, e.g. V-n diagrams

Filter by
Sorted by
Tagged with
2 votes
2 answers
158 views

Does angle of attack affect affect load factor?

I have been reading FAA Part 23 recently, and I have some confusion regarding the flight envelope of an aircraft. In some references, the maneuvering speed of an aircraft is written as follows: It ...
user avatar
  • 23
3 votes
1 answer
91 views

In big transport jets, what is the difference between manoeuvring loads and gust loads?

In the design certifications for big transport jets, there are two factors that must be met in order for a new aircraft to be certified; manoeuvring loads, and gust loads. Why are these two separate ...
user avatar
1 vote
3 answers
290 views

Why is the maneuvering point (Va) in the V-n diagram defined as the upper intersection point? Why not the lower point one?

in my textbook and apparently everywhere online I have found that Va or cornering velocity is defined to be the point of intersection where the stall line and the limit load factor line meet. ...
user avatar
4 votes
2 answers
332 views

In this F-104 V-n diagram, why does the stall speed (in terms of IAS) decrease with altitude in some parts of the flight envelope?

(This question has been edited to reflect a change in perspective: based on answers to the related question What is causing these "corners" on this F-104 V-n diagram?, I now believe that the ...
user avatar
  • 17.1k
8 votes
1 answer
492 views

What is causing these "corners" on this F-104 V-n diagram?

In this V-n diagram for an F-104 (source: this Wikipedia link), on the left-hand edge of the flight envelope, what is causing the "corners" that we see at the following points? (Numbers are ...
user avatar
  • 17.1k
6 votes
2 answers
833 views

How does an aircraft's weight affect the V-n diagram?

I have a reasonable understanding of what a V-n diagram shows and what the envelope and the boundaries mean. However, the question I have is how does the weight of the aircraft specifically affect the ...
user avatar
  • 71
17 votes
3 answers
5k views

How come planes can endure more positive than negative g's? I.e. how come V-n diagrams are not symmetric?

In this question A380 reverse thrust on only half the engines some doubts were raised about the strength of structures in certain directions. Specifically, Peter Kämpf states: Aluminium and ...
user avatar
  • 6,103