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Not so easy to awnser in short....
It is difficult to understand the relation between Vx & Vy (Vx = best angle and Vy = best rate of climb), without first understanding the effect of drag on an aircraft. If you look at the relation of total drag/power available relelative to velocity, you can determine different kinds of velocities such as Vx and Vy.
To achieve the highest angle of climb (highest nose position above horizon) for a propellor driven aircraft, you need the highest amount of power available of your engine. The highest power availability occurs at a speed which is lower than your minimal drag speed (Vmd), which would be your best glide speed or best rate of climb. At point Vx you have the most excess thrust availablewhich is the single factor enabling an aircraft to climb.
Note that Vx is a lower speed than Vy, your best rate of climb! Considering this, an aircraft reaches an height faster with the best rate of climb, while Vx has a higher nose attitude! Practicle use would be, to avoid an obsticle you could use Vx, and climb at shorter ground distances etc. Note that the use of flaps increase your Induced drag because the increase of lift, thus changing the total drag (reduces drag speeds) curve and changing the whole Vx/Vy speed spectrum... :)
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∙ 14y ago
The angle of climb speed is lower than the rate of climb speed because the angle of climb speed refers to the speed at which an aircraft can climb while maintaining a specific pitch angle, whereas the rate of climb speed refers to the speed at which the aircraft can ascend vertically in a given amount of time. The angle of climb speed is typically slower because it involves maintaining a specific pitch attitude which may not necessarily result in the maximum rate of climb.
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What is the best rate of climb speed for a A330?
The best rate of climb speed for an A330 is typically around 250 knots indicated airspeed (KIAS) in the initial stages of climb. This speed may vary depending on the aircraft's weight and specific operating conditions, so it is always best to refer to the aircraft's specific performance data for precise information.
Which would provide the greatest gain in altitude in the shortest distance during climb after takeoff?
An airplane with a high climb rate will provide the greatest gain in altitude in the shortest distance after takeoff. This means it can climb quickly and efficiently, getting to a higher altitude in a shorter amount of time and distance compared to an airplane with a lower climb rate.
How does an vertical speed indicator work?
A vertical speed indicator (VSI) measures the rate of climb or descent of an aircraft by sensing changes in air pressure. It contains a diaphragm that expands or contracts based on these pressure changes, which are then displayed as a rate of climb or descent on the instrument. The VSI provides valuable information to pilots for maintaining desired altitudes during flight.
What happens to the temperature if you climb up a mountain?
The temperature generally decreases as you climb higher up a mountain due to lower air pressure and thinner atmosphere. This change in temperature with altitude is known as the lapse rate, and it results in colder temperatures at higher elevations.
What happens if a source of sound is moving toward you at a high rate of speed?
As the source of sound moves toward you at a high rate of speed, the frequency of the sound waves will increase, resulting in a higher pitch. This is known as the Doppler effect.
What is the difference between best rate of climb and best angle of climb in an aircraft?
Best rate of climb speed, also known as Vy, is the speed which allows the best gain in altitude over a given time. You fly this airspeed when you want to gain altitude fast but you don't have any obstacle you need to avoid. Best angle of climb, also known as Vx, is the speed which allows best ramp climb performance. You gain the most altitude in the minimum distance. Usually this airspeed corresponds to 1,2 times the stall speed and we fly it when we need to clear obstacles. Vx is always bigger or, at the minimum, equal to Vy.
What is the difference of takeoff climb out speed and takeoff safety speed for helicopter?
Takeoff climb out speed is the speed for twin engine climb out and will get performance of best rate of climb and also it is known as (vbroc) but takeoff safety speed is the speed at which the helicopter may safely air born with one engine inoperatied and also it is known as (v2)
What happenes if the Idle speed in a car is too high?
the engine runs at a faster rate than when the idle speed is lower.
What is the difference between best angle of climb and best rate of climb in an aircraft?
Best angle of Climb (Vx) : Climbing at Vx allows an aircraft to maximize the altitude gain per unit ground distance. That is, Vx allows a pilot to maximize his/her/their climb while sacrificing the least amount of ground distance. Usually used for Short Field takeoffs to clear obstacles.Best rate of Climb (Vy) : Climbing at Vy allows an aircraft to maximize the altitude gain per unit time. That is, Vy, allows a pilot to maximize his/her/their climb while sacrificing the least amount of time. Usually used to get to altitude in the shortest amount of time.
How are speed and acceleration described before takeoff and when an airplane takes off?
There are different speeds. They are called v-speeds: V1 takeoff decision speed V2 takeoff safety speed Va design maneuvering speed Vb design speed for maximum gust intensity Vc design cruise speed Vd design dive speed Vdf demonstration dive speed Vf design flap speed Vfe maximum flap-extended speed (top of white arc) Vh maximum speed in level flight with maximum continuous power Vle maximum landing-gear extended speed Vlo maximum landing-gear operating speed Vlof lift-off speed Vmca minimum control speed with critical engine out, out of ground effect (red radial line) Vmcg minimum control speed with critical engine out during takeoff run Vmo maximum operating speed Mmo maximum operating Mach number Vmu minimum unstick speed Vne never-exceed speed Vno maximum cruise speed (top of green arc) Vr rotation speed Vref reference speed for final approach, normally (1.3 x Vso) Vs stall speed Vso stall speed in landing configuration (bottom of white arc) Vsse minimum safe single-engine speed Vx best angle-of-climb speed Vxse best single-engine angle-of-climb speed Vy best rate-of-climb speed Vyse best single-engine rate-of-climb speed
At what speed does a wheelchair lift climb the stairs?
A wheelchair lift can climb the steps of stairs at a rate of six steps a minute to nineteen steps a minute depending on the brand of the wheelchair lift that you may buy.
Launch angle for Cleveland vas plus lob wedge and sand wedge?
Launch angle varies from person to person and is dependent on swing speed and spin rate.
What is the rate of climb and rate of descent of a passenger airplane?
Depending on the aircraft but most jets and passenger aircraft have a safe climb speed of anywhere between 1800 and 3000 feet per minute. A safe and sensible descent rate for the same aircraft may be between 800 and 2000 feet per minute.
How does an vertical speed indicator work?
A vertical speed indicator (VSI) measures the rate of climb or descent of an aircraft by sensing changes in air pressure. It contains a diaphragm that expands or contracts based on these pressure changes, which are then displayed as a rate of climb or descent on the instrument. The VSI provides valuable information to pilots for maintaining desired altitudes during flight.
How does increase in temperature surface area wind speed affect evaporation?
An increase in temperature will generally increase the rate of evaporation. A larger surface area will also enhance evaporation by providing more space for liquid to vaporize. Higher wind speeds can accelerate evaporation by removing the saturated air from the surface, allowing more water molecules to escape into the air.
What does a rate tell you about the speed?
Rate is another word for speed. It is the speed.
What affects the speed of lava flows?
The temperature and the silica content will both affect the viscosity of lave which will in turn affect the flow rate (whereby the lower the temperature and the higher the silica content, the higher the viscosity and the lower the flow rate).
