These are Vlo and Vle. Do not extend or retract the landing gear above this airspeed. When the landing gear is in transition, it is more vulnerable to damage from the effects of speed.
However, once the landing gear is fully extended and locked, it may sustain higher airspeeds. Do not exceed this speed with the landing gear extended. Glass Cockpits The newer Glass Cockpits are ideal for presenting tremendous amounts of critical data to the Pilot in an organized and familiar manner.
Click on the glass cockpit image for a larger view. The current speed is shown as a digital number. However, you will also see the familiar Green and Yellow Bars. From this familiar colour coding, the pilot can easily visualize some of these critical V-Speeds.
The Glass Cockpit technology is incredible, and the pilot will be provided with considerable additional information including Ground Speed calculations and True Air Speed TAS calculations. The student pilot must have these important airspeeds committed to memory very early in their flight instruction.
These airspeeds will be demonstrated and explained. This will provide the best climb for the maximum gain in altitude in the shortest time possible. You will get to your selected cruising altitude in the shortest time possible.
Altitude is your friend, and particularly after takeoff, you want to gain the maximum height above the ground in the least time possible. Vy provides you with the Best Rate of Climb. Best Angle of Climb Vx Occasionally, it may be necessary to gain the maximum altitude possible over the shortest distance on the ground. To achieve this, the pilot would use the Best Angle of Climb or Vx.
This would be applicable if you needed to clear an obstacle or obstruction on the ground shortly after takeoff. The pilot would configure the aircraft for the Best Angle of Climb to gain the maximum altitude possible before reaching the obstacle i.
Tree located beyond the runway. Vx is slower than Vy. This makes sense, as Vx will have a slower forward speed. The slower forward speed of the airplane will provide more opportunity for altitude gain before reaching the obstacle to be cleared. An easy way to remember Vx vs. Vy, is to ask yourself which letter has more angles? The letter X has more angles than the letter Y. This is simple. What you see on the dial, is the IAS. These errors are caused by factors such as the placement of the Pitot Tube and Static Sources and flying configuration such as the degrees of flap extended.
Some Airspeed Indicators have a moveable ring on the outer scale of the dial to assist with determining your TAS. This dense air helps the wings create lift, but there is also additional drag. As the aircraft ascends, the higher altitude air is less dense. This reduces drag, and allows the airplane to fly faster through the air. You simply take your Altitude above sea level i. You may cancel anytime. Refer to our Privacy Policy or Contact Us for more details. Jesus Follower. Information Technology Executive.
Publisher and developer of incredible online brands. In this example the V-n diagram represents airspeed horizontal axis against load factor vertical axis.
In more complex aircraft the diagram may vary. Load Factor. An aircraft structure is designed to be able to withstand the forces exerted upon it during flight; together, these forces are calculated as the load factor and may vary depending on the phase of flight; the load factor is defined as the relationship between lift and the weight of the aircraft:. The load factor is equal to 1 when the aircraft is static on the ground, with only gravity acting upon it.
The load factor can therefore be defined as a multiple of gravitational acceleration g. The normal stall speed point A is defined by the aerodynamic characteristics of the platform. The intersection of the positive limit of the load factor and the line of maximum lift point B defines the maximum airspeed that allows full manoeuverability.
This point is called the manoeuver speed or corner speed. At lower speeds, the structure cannot be overstressed as it will stall before reaching the limit load factor. At the manoeuver airspeed the aircraft's limit load factor will be reached at the lowest possible airspeed. At higher speeds, possible structural damage may be caused.
The intersection of the negative limit load factor and line of maximum negative lift capability point C defines the maximum airspeed that allows full manoeuverability in a negative lift situation. What is the weight for VH?
VH is defined as the maximum speed in level flight with the maximum continuous power at sea level. What is the weight of the aircraft for VH? Is it that of an empty aircraft with a skinny pilot and minimal fuel? The standard if there is one should be listed in the FAR. However, I believe with the possible exception of the LSAs it may be left up to the "manufacturer" to decide it as when I went looking quickly, I saw no reference to weights.
However, I came across this one a site about the Sonex aircraft:. Unfortunately in science what you believe is irrelevant. I would assume it would mean at any permissible loading. If we're talking the LSA limits, there likely isn't going to be that much of a difference, the usable loads are usually pretty skimpy. Originally Posted by Check 6.
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