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基本信息

【范围】

This document provides information on the current practices used by commercial and military operators in regards to hard landings (or overload events designated as hard landings). Since detailed information on inspections would be aircraft specific, this AIR provides only a general framework. Detailed information and procedures are available in the maintenance manuals for specific aircraft. Because hard landings potentially affect the entire aircraft, guidelines are listed here for non-landing gear areas. But, the primary focus of the document is the landing gear and related systems. The document may be considered to be applicable to all types of aircraft. This document does NOT provide recommended practices for hard landing inspections, nor does it provide recommendations on the disposition of damaged equipment. Refer to ARP 4915 and ARP 5600. Also, this document does not necessarily address overloads from circumstances other than landings, such as from tow vehicles, runway bumps, traversing cables, etc.strRefFieldFAR 27 Federal Aviation Regulations - Airworthiness Standards: Normal Category Rotorcraft, para. 27.725,“Limit;D,rop Test”;FAR 29 Federal Aviation Regulations - Airworthiness Standards: Transport Category Rotorcraft, para. 29.725,缩小;2.1.4 ,Other Publications? HON;{eb667f6b84b4450ba637134877cdafb7.,jpg}“Limit Drop Test” 2.1.4 Other Publications {eb667f6b84b4450ba637134877cdafb7.jpg};

【与前一版的变化】

包含缩略语

AIA：
AMM：
Autoland：	A system that fully automates the landing portion of an aircraft flight for low visibility and bad weather conditions.
CLDGW：	The aircraft maximum gross weight specified for landing / arrestment operations on an aircraft carrier.
CG：
DLW：	The highest aircraft gross weight corresponding to the maximum required sink rate. This definition is common for both military and commercial land based fixed wing aircraft and rotorcraft.
EASA：
FAA：
FP：
LLDGW：	This term is used in military applications and is equivalent to the DLW. Typically, the following guidelines are used to establish LLDGW. For utility, observation, and trainer aircraft, LLDGW = maximum flight weight minus the following: payload to be expended, all external fuel, and 25% internal fuel. For cargo aircraft, LLDGW = maximum flight weight minus: all external fuel and 50% internal fuel. For combat aircraft, LLDGW = maximum flight weight minus: all external fuel and 60% internal fuel.
MLG：
MLW：	The term MLW, used in a commercial environment, is synonymous with the DLW and corresponds to the highest gross weight for a 10 ft/s (3.05 m/s) landing for transport airplanes. The limit sink rate for part 23 aircraft is 7 to 10 ft/s. It is NOT the same as the military definition of Maximum Landing Weight.
MLW：	The highest allowable weight for any landing. Typically, it is established by maximum flight weight minus any droppable external fuel tanks and fuel consumed or dumped during one go-around or 3 minutes, whichever provides the lightest aircraft weight. The military MLW term corresponds to the highest gross weight for a 6 ft/s (1.83 m/s) or 8.5 ft/s (2.59 m/s) landing depending on aircraft type.
MTOGW：
ND：
NLG：
NTSB：
OEM：
SI：
SAWE：
USN：

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包含图表

Other Publications	TABLE 1 – LANDING DE	FIGURE 1 - COMMERCIA
FIGURE 2 - EXAMPLE O	FIGURE 3 - US AIR FO	FIGURE 4 - USN CARRI
TABLE 2 - HARD LANDI	TABLE 3 - SCOPE OF F	TABLE 4 - RATES OF L
FIGURE 5 - SINK RATE	FIGURE 6 - SINK RATE	TABLE 5. SUMMARY OF