3.1 Benefits
Compared to other modes of transport, aircraft, there are many advantages
Speed. At present, the speed of jet about 900 km.
High mobility. Aircraft flying from the mountains, rivers, desert, ocean barrier, but according to passengers, the number of sources increase the number of flights at any time.
Safe and comfortable. According to ICAO statistics, civil aviation passenger kilometers per million the number of deaths was 0.04 people, the way an ordinary traffic accident deaths to a few of the several one-tenth of 1 percent, and rail transport as the most secure means of transport.
3.2 shortcomings
However, as a mode of transport aircraft has its own limitations
Very expensive. Whether it is flying the aircraft itself or the akoya pearls consumption of fuel compared with other mode of transportation more expensive.
Affected by weather freshwater pearls conditions. Although aviation technology has been able to adapt to pearl necklace the vast majority of weather conditions, but more serious wind, rain, snow, fog and other weather conditions will continue to affect the safety of aircraft taking off and landing.
Landing site is limited. Aircraft take-offs and landings must be at the airport, a city of at most a few airports, and airport clearance by surrounding conditions located in the suburbs. From the pearl jewelry airport to the city often requires a longer process of intermediation, which provides high-speed trains to 800 kilometers within the distance inter-city transport market space. Therefore only applies to aircraft weight, time and demands an urgent and can not be too close to a range of transport.
High mortality rate of emergency. Although the air passenger-km per million death toll is far lower than that of other transport equipment, but critics argue that the journey itself, the aircraft also transported other than a long, so I was driving down the value. In some data on the aircraft are not particularly safe. Aircraft cumbersome machines in most cases will lead to the tragic crash.
