6H XC Planning - High Altitude Ops Flashcards
- What are some basic operational advantages when conducting high-altitude operations?
a. True airspeeds increase with altitude
b. Winds aloft are stronger providing tailwind opportunities
c. Capability to see and avoid thunderstorms
d. Better visibility
e. Less turbulence
f. Above the weather instead of in it
g. Reduced chance for icing
h. Conflicts with other air traffic reduced
- What are the regulations concerning use of supple-mental oxygen on board an aircraft? (14 CFR 91.211)
No person may operate a civil aircraft of U.S. registry:
a. At cabin pressure altitudes above 12,500 feet MSL up to and including 14,000 feet MSL, unless, for that part of the flight at those altitudes that is more than 30 minutes, the required minimum flight crew is provided with and uses supplemental oxygen.
b. At cabin pressure altitudes above 14,000 feet MSL, unless the required flight crew is provided with and uses supplemental oxygen for the entire flight time at those altitudes.
c. At cabin pressure altitudes above 15,000 feet MSL, unless each occupant is provided with supplemental oxygen.
- What are the regulations pertaining to the use of supplemental oxygen on board a “pressurized” aircraft? (14 CFR 91.211)
Above Flight Level 250:
At least a ten-minute supply of supplemental oxygen, in addition to any oxygen required to satisfy 14 CFR §91.211, is available for each occupant of the aircraft for use in the event that a descent is necessitated by loss of cabin pressurization.
Above Flight Level 350:
At least one pilot at the controls of the airplane is wearing and using an oxygen mask that is secured and sealed that either supplies oxygen at all times or automatically supplies oxygen whenever the cabin pressure altitude of the airplane exceeds 14,000 feet (MSL).
Note: One pilot need not wear and use an oxygen mask while at or below Flight Level 410 if two pilots are at the controls and each pilot has a quick donning type of oxygen mask that can be placed on the face within 5 seconds. Also, if for any reason at any time it is necessary for one pilot to leave the controls of the aircraft when operating at altitudes above Flight Level 350, the remaining pilot at the controls shall put on and use an oxygen mask until the other pilot has returned to that crewmember’s station.
- What are the requirements to operate within Class A airspace? (14 CFR 91.135)
a. Operated under IFR at a specific flight level assigned by ATC;
b. Equipped with instruments and equipment required for IFR operations;
c. Flown by a pilot rated for instrument flight; and
d. Equipped, when in Class A airspace, with:
• A radio providing direct pilot/controller communication on the frequency specified by ATC in the area concerned; and
• The applicable equipment specified in 14 CFR §91.215 (transponder regulations).
- What additional equipment is required when operating above Flight Level 240? (14 CFR 91.205)
For flight at and above 24,000 feet MSL: if VOR navigational equipment is required (appropriate to the ground facilities to be used) no person may operate a U.S.-registered civil aircraft within the 50 states and the District of Columbia at or above FL240 unless that aircraft is equipped with approved distance measuring equipment (DME) or a suitable RNAV system.
- What type of navigational charts are used when operating at altitudes above 18,000 feet? (AIM 9-1-4)
Enroute high altitude charts are designed for navigation at or above 18,000 feet MSL. This four-color chart series includes the jet-route structure; VHF NAVAIDs with frequency, identification, channel, geographic coordinates; selected airports, reporting points. These charts are revised every 56 days.
