PI.III.B.K2
KnowledgeAltitude selection accounting for terrain and obstacles, IFR cruising altitudes, and effect of wind and oxygen requirements.
From the FAA library
- Chapter 10: IFR Flight › IFR Flight Plan › Cancelling IFR Flight Plans
Cancelling IFR Flight Plans An IFR flight plan may be cancelled any time a pilot is operating in VFR conditions outside Class A airspace by stating “cancel my IFR flight plan” to the controller or air-toground station. After cancelling ... IFR flight plan, the pilot should change to the appropriate air-to-ground frequency, transponder code as directed, and VFR altitude/flight level. ATC separation and information services (including radar services, where applicable) are discontinued when an IFR flight plan…
- 14 CFR § 91.179 IFR cruising altitude or flight level.
IFR cruising altitude or flight level. Unless otherwise authorized by ATC, the following rules apply— (a) In controlled airspace. Each person operating an aircraft under IFR in level cruising flight in controlled airspace shall maintain the altitude ... while in a holding pattern of 2 minutes or less or while turning, each person operating an aircraft under IFR in level cruising flight in uncontrolled airspace shall maintain an appropriate altitude as follows: (1) When operating below…
- Chapter 2: En Route Operations › IFR Cruising Altitude or Flight Level
IFR Cruising Altitude or Flight Level In controlled airspace, pilots must maintain the altitude or flight level assigned by ATC, although if the ATC clearance assigns “VFR conditions on-top,” an altitude or flight level as prescribed ... except while in a holding pattern of two minutes or less or while turning) if operating an aircraft under IFR in level cruising flight, an appropriate altitude as depicted in the legend of IFR en route high…
- Chapter 11: Aircraft Performance › Climb Performance Factors › Range Performance
that is tangent to the sea level power curve is also tangent to the altitude power curve. The effect of altitude on specific range can also be appreciated from the previous relationships. If a change in altitude causes identical changes in speed and power required, the proportion of speed to power required would be unchanged. The fact implies that the specific range of a propeller-driven aircraft would be unaffected by altitude. Actually, this…
- Chapter 5. Air Traffic Procedures › Section 1. Preflight › 5-1-15. Canceling IFR Flight Plan
applicable to a flight that cancels an IFR flight plan within an area where a special program, such as a designated TRSA, Class C airspace, or Class B airspace, has been established. d. If a DVFR flight plan requirement exists ... pilot is responsible for filing this flight plan to replace the canceled IFR flight plan. If a subsequent IFR operation becomes necessary, a new IFR flight plan must be filed and an ATC clearance obtained before operating in IFR conditions…
- 14 CFR § 91.211 Supplemental oxygen.
Supplemental oxygen. (a) General. No person may operate a civil aircraft of U.S. registry— (1) At cabin pressure altitudes above 12,500 feet (MSL) up to and including 14,000 feet (MSL) unless the required minimum flight crew ... provided with and uses supplemental oxygen for that part of the flight at those altitudes that is of more than 30 minutes duration; (2) At cabin pressure altitudes above 14,000 feet (MSL) unless the required minimum flight…