ultraturtle
lvl.2
United States
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A 400' ceiling for remote controlled aircraft has been the safety standard in the United States since 1981 (see 1981 Advisory Circular setting 400' as the recommended ceiling for RC aircraft
It has worked well for over 30 years to keep the flying public alive because amateur groups have been effective in educating their members about the grave danger of flying higher, since manned aircraft operate as low as 500'. Canada has chosen ~300 ft (90 meters) as a standard, which provides plenty of altitude for both recreational and commercial operations. In this country, however, responsible UAV pilots adhering to the voluntary 400' safety recommendation for over 3 decades have proven that 400 feet is a safe ceiling for UAVs, and is therefore a reasonable operational ceiling to impose on these vehicles as the US government moves to impose laws governing their operation. |
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