Vmcl means
Hello there,
Anybody can tell the meaning of " Vmcl" thanks very much, m_t:hmm: |
Minimum Control Speed in the Landing configuration.
Regards, Old Smokey |
VMCL, the minimum control speed during landing approach with all
engines operating, is the calibrated airspeed at which, when the critical engine is suddenly made inoperative, it is possible to maintain control of the airplane with that engine still inoperative and maintain straight flight with an angle of bank of not more than 5 degrees. VMCL must be established with-- (1) The airplane in the most critical configuration for approach with all engines operating; (2) The most unfavorable center of gravity; (3) The airplane trimmed for approach with all engines operating; (4) The maximum sea level landing weight (or any lesser weight necessary to show VMCL); and (5) Maximum available takeoff power or thrust on the operating engines. (g) For airplanes with three or more engines, VMCL-2, the minimum control speed during landing approach with one critical engine inoperative, is the calibrated airspeed at which, when a second critical engine is suddenly made inoperative, it is possible to maintain control of the airplane with both engines still inoperative and maintain straight flight with an angle of bank of not more than 5 degrees. VMCL-2 must be established with-- (1) The airplane in the most critical configuration for approach with the critical engine inoperative; (2) The most unfavorable center of gravity; (3) The airplane trimmed for approach with the critical engine inoperative; (4) The maximum sea level landing weight (or any lesser weight necessary to show VMCL-2); (5) The power or thrust on the operating engines required to maintain an approach path angle of 3 degrees when one critical engine is inoperative; and (6) The power or thrust on the operating engines rapidly changed, immediately after the second critical engine is made inoperative, from the power or thrust prescribed in paragraph (g)(5) of this section to-- (i) Minimum available power or thrust; and (ii) Maximum available takeoff power or thrust. (h) The rudder control forces required to maintain control at VMCL and VMCL-2 may not exceed 150 pounds, nor may it be necessary to reduce the power or thrust of the operating engines. In addition, the airplane may not assume any dangerous attitudes or require exceptional piloting skill, alertness, or strength to prevent a divergence in the approach flight path that would jeopardize continued safe approach when-- (1) The critical engine is suddenly made inoperative; and (2) For the determination of VMCL-2, the power or thrust on the operating engines is changed in accordance with paragraph (g)(6) of this section. "http://adg.stanford.edu/aa241/stability/FAR143.html" |
OS / LP
With all respect.....Thank's alot OS/LP regards, m_t:ok: |
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