Bingo
Dal Pilot’s handbook of aeronautical knowledge della FAA
FAA- H-8083-25-A, Chapter10
For air carriers and other commercial operators subject to 14 CFR part 121, the required landing distance from the 50 foot height cannot exceed 60 percent of the actual runway length available. In all cases, the minimum airspeed allowed at the 50 foot height must be no less than 1.3 times the aircraft’s stalling speed in the landing configuration. This speed is commonly called the aircraft’s VREF speed and varies with landing weight.
Planning the Landing
As in the takeoff, the landing speeds shown above should be precomputed and visible to both pilots prior to the landing. The VREF speed, or threshold speed, is used as a reference speed throughout the traffic pattern or instrument approach as in the following example:
VREF plus 30K Downwind or procedure turn
VREF plus 20K Base leg or final course inbound to final fix (1,3 + c.ca 0,2 = 1,5)
VREF plus 10K Final or final course inbound from fix (ILS final)
VREF Speed at the 50 foot height above the threshold
mau: "Noi con l'ATP FAA avremmo dovuto saperlo!"
Pirandello: "Tutto cangia"
Non mi piace, ma mi adeguo
Ubi major minor và a lo cesso
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