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144 ms- §1.1REGULATION — OFFICIAL DEFINITION
Large aircraft
Large aircraft means aircraft of more than 12,500 pounds, maximum certificated takeoff weight.
- §1.1REGULATION — OFFICIAL DEFINITION
Lighter-than-air aircraft
Lighter-than-air aircraft means aircraft that can rise and remain suspended by using contained gas weighing less than the air that is displaced by the gas.
- §1.1REGULATION — OFFICIAL DEFINITION
Load factor
Load factor means the ratio of a specified load to the total weight of the aircraft. The specified load is expressed in terms of any of the following: aerodynamic forces, inertia forces, or ground or water reactions.
- §1.1REGULATION — OFFICIAL DEFINITION
Long-range communication system (LRCS)
Long-range communication system (LRCS) A system that uses satellite relay, data link, high frequency, or another approved communication system which extends beyond line of sight.
- §1.1REGULATION — OFFICIAL DEFINITION
Long-range navigation system (LRNS)
Long-range navigation system (LRNS) An electronic navigation unit that is approved for use under instrument flight rules as a primary means of navigation, and has at least one source of navigational input, such as inertial navigation system
- §1.2REGULATION — OFFICIAL DEFINITION
M
M means mach number.
- §1.2REGULATION — OFFICIAL DEFINITION
MAA
MAA means maximum authorized IFR altitude.
- §1.2REGULATION — OFFICIAL DEFINITION
MALS
MALS means medium intensity approach light system.
- §1.2REGULATION — OFFICIAL DEFINITION
MALSR
MALSR means medium intensity approach light system with runway alignment indicator lights.
- §1.2REGULATION — OFFICIAL DEFINITION
MCA
MCA means minimum crossing altitude.
- §1.2REGULATION — OFFICIAL DEFINITION
MDA
MDA means minimum descent altitude.
- §1.2REGULATION — OFFICIAL DEFINITION
MEA
MEA means minimum en route IFR altitude.
- §1.2REGULATION — OFFICIAL DEFINITION
MEL
MEL means minimum equipment list.
- §1.2REGULATION — OFFICIAL DEFINITION
MM
MM means ILS middle marker.
- §1.2REGULATION — OFFICIAL DEFINITION
MOCA
MOCA means minimum obstruction clearance altitude.
- §1.2REGULATION — OFFICIAL DEFINITION
MRA
MRA means minimum reception altitude.
- §1.2REGULATION — OFFICIAL DEFINITION
MSL
MSL means mean sea level.
- §1.1REGULATION — OFFICIAL DEFINITION
Mach number
Mach number means the ratio of true airspeed to the speed of sound.
- §1.1REGULATION — OFFICIAL DEFINITION
Main rotor
Main rotor means the rotor that supplies the principal lift to a rotorcraft.
- §1.1REGULATION — OFFICIAL DEFINITION
Maintenance
Maintenance means inspection, overhaul, repair, preservation, and the replacement of parts, but excludes preventive maintenance.