As an aviation enthusiast myself, I just want to understand how this whole thing started. Did you move into the area long after the runway was established ? People can't simply buldoze a strip on their farm and call it a runway. They have to apply to the FAA, who come out and do an inspection and one of the things they will look for is clearance from obstacles at the ends of the runway. The clearance zones at the end of the runways (the approach) are quite large and require a lot of room.
So I assume that when the airfield got started, it would have had to meet the criteria. Furthermore, from that time on, there would have been restrictions on development in the approach zones to keep them safe (to Min FAA standards). So I would be surprized that he only clears your place by 75ft. Furthermore, the engine note is completely different in the approach phase of flight (engine close to idle) than on takeoff (max power). Normally, someone coming in to land is near silent.
Now if he "buzzes" your place (not on approach or takeoff) at low altitude, that would be a clear FAA violation. FAA rules prohibit approaching any structure or person on the ground closer than 500ft. If legitimately descending to land or on takeoff, it is a different story if you are right in the approach path, but that is something you need to consider before buying in the first place. Considering the potential consequences of being closed down by the FAA, your friend would have to be really stupid to do anything deliberate to make you more irate. If you think that is the case, get 2 external video cameras and mount them pointing from your property towards the runway and on the opposite side pointing away at a known inclination. Couple that to a recording system that is activated by a microphone when the sound level exceeds a threshold. That system would capture "evidence" of the kind that would stand up in court, particularly if the recording shows date & time. You probably only need a few "home movies" of that kind before you have a meeting with the gentleman, an arbitrator and the FAA.
Here is the Rule:
http://ecfr.gpoaccess.gov/cgi/t/tex...de=14:2.0.1.3.10&idno=14#14:2.0.1.3.10.2.4.10
§ 91.119 Minimum safe altitudes: General.
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Except when necessary for takeoff or landing, no person may operate an aircraft below the following altitudes:
(a)
Anywhere. An altitude allowing, if a power unit fails, an emergency landing without undue hazard to persons or property on the surface.
(b)
Over congested areas. Over any congested area of a city, town, or settlement, or over any open air assembly of persons, an altitude of 1,000 feet above the highest obstacle within a horizontal radius of 2,000 feet of the aircraft.
(c)
Over other than congested areas. An altitude of 500 feet above the surface, except over open water or sparsely populated areas. In those cases, the aircraft may not be operated closer than 500 feet to any person, vessel, vehicle, or structure.
(d)
Helicopters. Helicopters may be operated at less than the minimums prescribed in paragraph (b) or (c) of this section if the operation is conducted without hazard to persons or property on the surface. In addition, each person operating a helicopter shall comply with any routes or altitudes specifically prescribed for helicopters by the Administrator.
To see how runways are demarcated look here
http://ecfr.gpoaccess.gov/cgi/t/tex...&node=14:2.0.1.2.9&idno=14#14:2.0.1.2.9.3.1.3
And specifically here
http://ecfr.gpoaccess.gov/cgi/t/tex...&node=14:2.0.1.2.9&idno=14#14:2.0.1.2.9.3.1.3