AV Web
MAY 6, 2025
The FAA doesnt guarantee terrain clearance at minimums all the way to the next state. However the indicated airspeed at which you circle is not the same as the true airspeed , and of course the difference increases with altitude. In fact, the area that is clear of obstacles at minimums is very small.
Air Facts
MAY 5, 2025
This particular 172 normally cruised at 120 mph indicated airspeed, but with the ice it would barely do 90 mph and that required full throttle! I filed my IFR flight plan, received a clearance and took off into the gray winter sky. We finally broke out on top into dazzling sunlight carrying about one inch of rime ice.
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Professional Pilot
JULY 7, 2025
However, with no room to navigate up the steep glacial valley, the pilots finessed the airplane over the hurdle with no more than 200 ft of clearance. In addition, decreased air density also decreases ram air pressure, meaning a indicated airspeed from a pressure-based airspeed indicator will read lower than the true airspeed.
Flying Magazine
JUNE 30, 2025
In general, tailwheel airplanes do well on unimproved airstrips because of prop clearance and, with larger main gear tires, the ability to handle ruts and uneven ground. The POH gives obstacle clearance takeoff information only for the tailwheel X Cub and shows it as 974 feet to clear a 50-foot obstacle. However, they are not magic.
Flight Training Central
MARCH 18, 2024
For example, a pilot flying IFR in controlled airspace will have to file an IFR flight plan and receive an ATC clearance. For VFR flight, controlled airspace means increased cloud clearance and visibility requirements. For the VFR pilot flying in B, C, and D airspace, there are communication and/or clearance requirements.
Flight Training Central
NOVEMBER 4, 2024
An ATC clearance is required for operations within Class B airspace. Class B Speed Limitations Aircraft flying within the Class B airspace may fly at an indicated airspeed of up to 250 knots. An aircraft can operate in these corridors without a clearance from or communication with ATC.
Air Facts
MAY 10, 2024
If you depart MDA on the downwind or base leg, you’re on your own as far as obstacle clearance. What specific indicated airspeed will be flown/adhered to during the circling maneuver? Be fully configured and on speed prior to receiving landing clearance. Outside of assessed radii, the MDA is no longer valid.
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