AI.XIII.C.K4
KnowledgeEffects on performance of airspeed changes at, above, and below VYSE.
From the FAA library
- Chapter 11: Aircraft Performance › Takeoff and Landing Performance › Takeoff Performance
Figure 11-19 illustrates the general effect of wind by the percent change in takeoff or landing distance as a function of the ratio of wind velocity to takeoff or landing speed. The effect of proper takeoff speed is especially ... initial ROC. In some cases, an excessive AOA may not allow the aircraft to climb out of ground effect. On the other hand, an excessive airspeed at takeoff may improve the initial ROC and “feel” of the aircraft but produces…
- Chapter 5: Aerodynamics of Flight › Ground Effect
Figure 5-16. Ground effect changes airflow. Ground effect also alters the thrust required versus velocity. Since induced drag predominates at low speeds, the reduction of induced drag due to ground effect will cause a significant reduction of thrust required ... parasite plus induced drag) at low speeds. Due to the change in upwash, downwash, and wingtip vortices, there may be a change in position (installation) error of the airspeed system associated with ground effect. In the majority of cases, ground…
- Chapter 11: Aircraft Performance › Performance › Climb Performance Factors
Climb Performance Factors Since weight, altitude and configuration changes affect excess thrust and power, they also affect climb performance. Climb performance is directly dependent upon the ability to produce either excess thrust or excess power. Earlier in the book ... flaps all decrease both excess thrust and excess power for all aircraft. Therefore, maximum AOC and maximum ROC performance decreases under any of these conditions. Weight has a very pronounced effect on aircraft performance. If weight is added…
- Chapter 11: Aircraft Performance › Performance › Climb Performance
Positive climb performance occurs when an aircraft gains PE by increasing altitude. Two basic factors, or a combination of the two factors, contribute to positive climb performance in most aircraft: 1. The aircraft climbs (gains PE) using excess power above ... that required to maintain level flight, or 2. The aircraft climbs by converting airspeed (KE) to altitude (PE). As an example of factor 1 above, an aircraft with an engine capable of producing 200 horsepower (at a given altitude…
- Chapter 9: Flight Manuals and Other Documents › Placards › Performance (Section 5)
Normal Procedures (Section 4) This section begins with a list of the airspeeds for normal operations. The next area consists of several checklists that may include preflight inspection, before starting procedures, starting engine, before taxiing, taxiing, before takeoff, climb, cruise ... appropriate checklists when available. Consistent adherence to approved checklists is a sign of a disciplined and competent pilot. Performance (Section 5) The Performance section contains all the information required by the aircraft certification regulations and any additional performance information…
- Chapter 8: Flight Instruments › Instrument Check › Airspeed Indicator (ASI)
side of the diaphragm, which is attached to an indicating system. The system drives the mechanical linkage and the airspeed needle. Just as in altitudes, there are multiple types of airspeeds. Pilots need to be very familiar with each type ... Indicated airspeed (IAS)—the direct instrument reading obtained from the ASI, uncorrected for variations in atmospheric density, installation error, or instrument error. Manufacturers use this airspeed as the basis for determining aircraft performance. Takeoff, landing, and stall speeds listed…