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What is Encroachment?

Any obstruction of whatever character, object of natural growth, or use of natural land, upon or surrounding or adjacent to an airport, landing field or other aeronautical facility, that prevents the safe use of the facilities for the take-off or landing or aircraft.

Why do pilots have to train at night?

Over the modern battlefield, an increasing percentage of operations are conducted at night. Night flying is an integral part of an aviator’s training program. In particular, night Field Carrier Landing Practice (FCLP) – the simulated carrier landing practice conducted at Chambers Field, NALF Fentress, and NAS Oceana – is crucial training for maintaining the proficiency of aircrews. To be effective, night flight training must occur in sufficient conditions of darkness, which necessitates later hours of operations during summer months, when sunset occurs after 8:30 p.m. This situation may be aggravated, such as when operations pick up prior to carrier deployment, resulting in a higher number of scheduled night operations. Night Vision Goggle training requires moonlight, necessitating later night operations as pilots “chase the moon” between moonrise and moonset.

What is the likelihood of an aircraft mishap?

The likelihood of an aircraft mishap is remote. Worldwide, only a small number of mishaps occur in hundreds of thousands of military aircraft operations each year. An examination of military aircraft mishaps over the last 30 years indicates that a majority of the mishaps occurring within 5 miles of an airfield occur on the airfield itself or in the extended arrival and departure corridors close to the airfield. Accident potential zones (APZs) were developed for land use planning purposes. These zones represent areas where a mishap is likely to occur IF one occurs. APZs indicate only WHERE a mishap is likely to occur. They are not predictors of WHETHER a mishap is likely to occur. In 1999, Naval aviation experienced its safest year ever.

How can I reduce noise in my house?

The house structure provides 15 to 25 dB of sound attenuation from outdoor noise levels, depending on whether the windows are open or closed. Greater noise attenuation may be achieved by caulking and filling exterior openings, installing sound-insulating windows and doors, and adding thermal insulation to outer walls.

What are the adverse effects of noise exposure?

Noise affects people differently. Some people are easily affected by noise, others less so. Temporary hearing threshold shifts (hearing loss) are possible in high noise zones, particularly if an individual is outdoors for extended periods of time. However, permanent hearing loss is unlikely.

24 Hour Noise Concern Line: (757) 433-2162

Real Estate Easements: (757) 341-1509

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