.
Examples: To avoid floor panel punctures, the following elementary handling precautions are recommended.
LOADING LOADING
A. LOADING GENERALITIES
. Never lay a heavy package on an edge or a corner:
. When using a pinch bar, place a floor protector device beneath the pinch bar (plank, piece of wood):
5.1.4. Spreader floor
A spreader floor enables to transport loads whose weight exceeds one of the previous limitations (running load, area load or contact load). It allows increasing either the length of the piece or the
area in direct contact with the floor.
Example : Max running load = 500 kg/m Max area Load = 1000 kg/m2 Max contact load = 2000 kg/m2
0.7 m
1.2 m
Note: Spreader’s weight = 20 kg
Without spreader floor
500
Running load = = 1250 kg/m
0.4 500
Area load = = 1429 kg/m2
0.35 500
Contact load = = 3125 kg/m2
0.16
With spreader floor
500 + 20
Running load = = 434 kg/m
1.2 500 + 20
Area load = = 867 kg/m2
0.6 500 + 20
Contact load = = 1084 kg/m2
0.48
A. LOADING GENERALITIES
5.2. Stability on ground – Tipping
5.2.1. Introduction
During on-loading and off-loading operations, an aft center of gravity position may lead to a tail tipping of the aircraft. Therefore, specific precautions should be considered to avoid this kind of critical situation.
5.2.2. Precautions
a) Load planning
During load planning, the load planner must allocate a sufficient load ahead of the aircraft center of gravity, and pay a particular attention to the distribution of the transit load on multi-sector flights.
b) Loading/Off-loading
Loading operations should start in the forward compartment and then in the aft ones, while off-loading operations should start in the aft compartment and then the forward ones. The same sequence applies for the galleys, whereas passenger distribution must not be considered to secure ground stability. To help the operator establishing its own recommendations for loading and off-loading, the tip up CG position (max aft CG position) is provided in the limitation section of the Weight & Balance Manual (refer to the graph —Aircraft stability on wheels“). Thus, the operator can simulate different critical scenarios and evaluate the risk of tipping of its aircraft in these configurations.
LOADING LOADING
A. LOADING GENERALITIES
c) Maximum wind for stability on wheels 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：Getting to Grips with Aircraft Weight and Balance(105)
