WING AND WEATHER CALCULATOR FULL
WING AND WEATHER CALCULATOR PLUS

WING AND WEATHER CALCULATOR PLUS

So lift equals weight plus the higher downward force of the elevator. This is because the elevator has to create a downward force to counter the nose down attitude. The straight and level stall speed is defined with the CoG at the forward limit. Its important to understand that an aircraft can stall at any speed! Angle of attack is the name of the game here. To maintain straight and level flight we need to increase the angle of attack for the wing and thus its load factor increases during these turns. The only way to overcome this is to not make a 1 G turn, then it is possible to bank even 90 degrees or more without issues (but that is called aerobatics 😉). As you can see: from 45° bank angle and higher the stall speed and load factor both go up very rapidly. In the table below we took some common bank angles, used the formula's and we showed the increase in stall speed and load factor for a typical aircraft.

The accelerated or increased stall speed becomes then Vsacc = Vs × √G. To calculate the load factor for a certain bank angle use this formula: G = 1 / cos (Bank Angle). But, for example, if you would place the aircraft in a level 60° banked turn the story changes. As lift opposes and is equal to weight, load factor (G) is G = L / W. Load factorįor normal, straight and level flight the load factor is exactly one (1). To calculate the new stall speed: Vs new = Vs Old Weight × √(New Weight / Old Weight). We know that for any level flight (not climbing) the amount of lift must be equal to the weight of the aircraft, thus if all up weight is lower then the amount of lift required is less too. WeightĪ change in weight will not change the angle of attack with which the wing will stall (C Lmax is fixed for a given wing configuration), but it changes the speed where the stall will occur. With most rectangular wings the stall starts at the wing root and progresses outboard. Because the angle of attack can vary along a wing, some parts will stall sooner. Light aircraft base their basic stall speed on V S0 with gear and flaps set for landing and power off and V S1: which is with flaps and gear up and power off.

WING AND WEATHER CALCULATOR FULL

To remedy this: at the wing drop, apply enough opposite rudder and move the stick/yoke forward to reduce the angle of attack, after that the addition of engine power speeds up a full recovery. If one wing stalls before the other: the aircraft tends to roll in that direction (wing drop) and it might possibly enter into a spin. When the wing stalls the airflow on the upper surface breaks away from trailing edge moving forward, and the amount of lift will be reduced to below what is needed to keep the wing flying (total lift will then be less than actual aircraft weight). The actual speed and angle of attack where that happens depends on a number of factors as you will see. This and more will be the subject here.īefore we continue lets look at the definition of the stall: It is a condition in flight where the angle between the incoming air flow and the wing exceeds the critical angle of attack and the streamlined flow of air begins to separate from the wing. What factors influences the stall speed of an aircraft? Which can a pilot alter or change to his advantage so that the stall speed remains low and the flight is carried out safely. In this section of the site we will take a look at the various factors contributing to the performance of the aircraft in this part of the flight. Collisions with obstacles during climb out, runway overruns on landing occur every once in a while. Most aircraft accidents occur during the takeoff or landing phase of the flight.

Wing and weather calculator