Airbus A321-200 taking 200 passengers, what is the stalling speed?

Question

Stalling speed is the minimum speed need to generate lift.

Answer 1

Operating in Normal Law it is impossible to stall an Airbus 321.  The Fly By Wire system protects the airplane from stalling and will prevent it no matter what, it will even override the pilots inputs.

Also on the Airbus if you are in managed speed mode it will slow to "green dot" which is a green dot on the airspeed tape and stay there until you put in flaps 1.  The it sill slow to "F" speed which is an "F" on the airspeed tape.  The airplane calculates green dot and F and S speed using many variables...do get me started about Ground Speed Mini!?!?

Stalling speed is the minimum speed need to generate lift...no it is not.

Answer 2

At maximum operating weight, the minimum safe operating speed in clean configuration is 236 knots below 20000 ft. (add 1 kt for every 1000ft above 20000).

This speed is the 1.3Vstall speed. This means that Vstall is 236/1.3 below 20000ft. So the stall speed is about 182 kts at max operation weight.

Answer 3

Who knows.  Why are you asking?

Answer 4

That's like asking how long a piece of rope is...  Depends on the rope....

So, understand, it's not the same as asking the stall speed on say a Cessna 172..

For conventional aircraft (A300, A300-600 and A310), the reference stall speed, Vsmin, is based on a load factor inferior to 1g. This gives a stall speed that is lower than the stall speed at 1g. All operating speeds are expressed as functions of this speed.

For Fly by Wire aircraft (A319, A320, A321, A330 and A340), the airworthiness authorities have reconsidered the definition of stall speed: the stall speed is based on a load factor equal to 1g. It is called Vs1g. Fly by Wire aircraft have a low-speed protection feature (alpha limit) that the flight

crew cannot override.

Airworthiness authorities have agreed that a factor of 0.94 represents the relationship between Vs1g and Vsmin : Vsmin = 0.94 Vs1g.

Stall speed for a forward CG is higher than the speed at 26%MAC.  There are systems in flight to use an aft CG, and transfer fuel accordingly.

If you don't understand the answer, you may want to go back to the question.  So many things affect stall speed in the A321.  Check out the link for a detailed explanation, hope it makes sense.  It's a pdf, and if you don't have a reader, you'll need to get Adobe reader.

Answer 5

That is a very complicated question to answer.  Stall speed depends on a lot of different factors.

Weight

Configuration (flaps, gear, etc)

Loading (where the people are sitting)

Altitude

Temperature

Bank Angle

This question is not really possible to answer, however I'd guess that at 10,000' at max weight and clean configuration it would be somewhere near 140.  That is only an approximate guess, and not intended to be anything more than a guess.

Also:  An aircraft keeps generating lift long after exceeding the angle of attack that causes a stall.  A stall is simply what occurs when the lift produced is no longer sufficient to overcome the weight of the plane.

Answer 6

Stalling speed is not the minimum speed needed to generate lift.