CH.IV.C.K7

From the FAA library

• Aeronautical Information Manualp. 7-1-43
  Chapter 7. Safety of Flight › Section 1. Meteorology › 7-1-14. Reporting of Cloud Heights

  meter increments for products between 1,200 meters and 2,000 meters. 7-1-14. Reporting of Cloud Heights a. Ceiling, by definition in the CFRs and as used in aviation weather reports and forecasts, is the height above ground ... phenomenon that is reported as “broken,” “overcast,” or “obscuration,” e.g., an aerodrome forecast (TAF) which reads “BKN030” refers to height above ground level. An area forecast which reads “BKN030” indicates that the height is above mean sea level. b. Pilots…

• Helicopter Flying Handbookp. 2-19
  Chapter 2: Aerodynamics of Flight › Forward Flight › Airflow in Forward Flight

  blade continues to rotate, velocity of the airflow then increases to rotational velocity over the tail. It continues to increase until the blade is back at the 3 o’clock position. The advancing blade in Figure 2-35, position ... moves in the same direction as the helicopter. The velocity of the air meeting this blade equals rotational velocity of the blade plus wind velocity resulting from forward airspeed. The retreating blade (position C) moves in a flow…

• Helicopter Flying Handbookp. 7-3
  Chapter 7: Helicopter Performance › Performance Charts › Height/Velocity Diagram

  power loss resulting in an uncushioned landing would probably be survivable. As the airspeed increases without an increase in height, there comes a point at which the pilot’s reaction time would be insufficient to react with a flare ... response time of the helicopter flight controls at slow airspeeds and low altitudes. Even small increases in height give the pilot much greater time to react; therefore, the bottom right part of the H/V diagram is usually a shallow gradient…

• Aeronautical Information Manualp. 1-1-14
  Chapter 1. Air Navigation › Section 1. Navigation Aids › 1-1-9. Instrument Landing System (ILS)

  Pilots must be alert when approaching the glidepath interception. False courses and reverse sensing will occur at angles considerably greater than the published path. 5. Make every effort to remain on the indicated glide path. CAUTION-Avoid flying below ... glide path to assure obstacle/terrain clearance is maintained. 6. The published glide slope threshold crossing height (TCH) DOES NOT represent the height of the actual glide path on-course indication above the runway threshold. It is used as a reference…

• Aeronautical Information Manualp. PCG D-1
  Pilot/Controller Glossary › D

  Areas of airspace that may be activated in response to unplanned falling debris in the NAS. DECISION ALTITUDE/DECISION HEIGHT [ICAO Annex 6]- A specified altitude or height (A/H) in the precision approach at which a missed approach must be initiated ... continue the approach has not been established. 1. Decision altitude (DA) is referenced to mean sea level and decision height (DH) is referenced to the threshold elevation. 2. Category II and III minima are expressed…

• Aviation Maintenance Technician Handbook - Powerplantp. 1-58
  Chapter 1: Aircraft Engines › Thrust

  compute the force necessary to accelerate a mass of 50 pounds by 100 ft/sec2. This illustrates that if the velocity mass per second is increased by 100, the resulting thrust is 155 pounds. Since the turbojet engine accelerates ... following formula can be used to determine jet thrust: change in velocity; difference between inlet velocity and jet velocity As an example, to use the formula for changing the velocity of 100 pounds of mass airflow per second from…