Is it based on the aircrafts weight, size, engine etc.? Also is it something based on level flight, in a dive, or is there more than one Vne for the aircraft (i.e. landing speed, gear down, flaps)
Is there a "fudge factor" included (that is "this is the Vne, but you can in fact go faster"?
2007-03-02 12:04:44 · 7 answers · asked by gregva2001 3 in Cars & Transportation ➔ Aircraft
Vne is the "do not excede airspeed on airplanes, many single engine piston props can't even really get there, but in a dive they could. This speed is not something to toy around with, obviously its not an airspeed that the plane will disentigrate and you will die... its an airspeed that allows for a little wiggle room, but dont excede it often, the primary factor in determining the Vne is fuselage, wing, and control surface strength, exceding it begins it stress the airframe... keep it under the Vne...
2007-03-02 12:24:32 · answer #1 · answered by ALOPILOT 5 · 1⤊ 0⤋
Vne is determined by the aircraft structure.
Wing loading,surface area, static weight are just a few factors.
For example:
If an aircraft exceeds Maximum Speed the lift created would be more force than the wing was designed to hold.
Structurally the wing can hold 2,450 lbs. The force required to keep the plane in the air is more than 2,450 lbs. As speed increases the force increases. Here is where you see the dilemma.
At some point the wing will not be able to structurally hold the forces.
That in a short for is why they have a Vne. It does not matter if you are level or in a dive. All speeds on an aircraft are there for a safety reason.
2007-03-03 03:05:54 · answer #2 · answered by dyke_in_heat 4 · 0⤊ 0⤋
Aircraft Vne
2017-01-16 04:22:38 · answer #3 · answered by ? 4 · 0⤊ 0⤋
the vne is "velocity Never Exceed" beyond that point, you can expect large chunks of the airplane to depart the scene or permanently distort as they begin to fail. If you want to exceed the VNE, it is akin to playing Russian roulette, do you feel lucky. There are VNE speeds for flaps and gear extensions, they will be listed in the operators manual. The designer has calculated the aircraft to work normally so long as the VNE speeds have not been exceeded
2007-03-05 02:56:02 · answer #4 · answered by al b 5 · 0⤊ 0⤋
I used to know all the abbreviations for speed limitations on airplanes, but since I've been flying helicopters I've forgotten the specifics. There are limitations for most planes for various configurations (flaps, gear, etc.)
Vne is a limit regardless of how you are flying. Yes there is a 'fudge' factor. You can fly at Vne without damage to the airframe, but anything above you are taking the risk that parts will begin to fall off.
I have a 'friend' that flew 10 knots over Vne in a helicopter but I , I mean he, was worried about damage after doing it (there was none).
2007-03-02 12:35:13 · answer #5 · answered by lowflyer1 5 · 0⤊ 2⤋
Vne is usually 90% of the Design Dive Speed Vd (or Vdf, demonstrated flight dive speed). There is only one Vne and it can be exceeded if required, but is not recommended.
2007-03-02 16:16:46 · answer #6 · answered by ? 6 · 0⤊ 1⤋
when there's permanent damage to the aircraft. this generally done by seeing whether the wings stretch, how much force is placed upon the cowling, windshield, etc until something breaks. i wouldnt suggest trying it yourself, especially since most GA aircraft flying these days are older than myself.
they dont normally pull more than 1.5 G's during a test like that, since the wings would rip right off
2007-03-02 12:21:29 · answer #7 · answered by gyrotoshko 2 · 0⤊ 2⤋