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  2. Late-night rumbling noise overhead mystified Raleigh ... - AOL

    www.aol.com/news/night-rumbling-noise-overhead...

    In all likelihood, these were UH-60 Black Hawk helicopters on routine flights. ... which shows a Black Hawk flying at 800 feet over Raleigh just past 4 a.m. Thursday. So you can go back to bed.

  3. Noticed low-flying helicopters? Here’s why they may be doing ...

    www.aol.com/noticed-low-flying-helicopters-why...

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  4. Seen a low-flying helicopter in Adams County? This might be why.

    www.aol.com/seen-low-flying-helicopter-adams...

    Adams County residents should expect to see low-flying helicopters over the next several weeks, according to a release.

  5. Low flying military training - Wikipedia

    en.wikipedia.org/wiki/Low_flying_military_training

    Low flying Tornado near Grasmere, UK. In the UK, low flying means fixed-wing aircraft at less than 2000 feet from the ground or light propeller driven aircraft and helicopters below 500 feet from the ground. [3] Low flying is permitted across the majority of the UK except for large urban areas, civil airports and some industrial and medical sites.

  6. Nap-of-the-earth - Wikipedia

    en.wikipedia.org/wiki/Nap-of-the-earth

    Helicopters are capable of flying with no more than a few feet of clearance below the helicopter's skids or wheels. Fast jets are more constrained and at a typical low-flying speed of 450 knots (830 km/h), 200 feet (61 m) is not unusual and 50 feet (15 m) is possible in relatively flat terrain.

  7. Ground effect (aerodynamics) - Wikipedia

    en.wikipedia.org/wiki/Ground_effect_(aerodynamics)

    At high weights this sometimes allows the rotorcraft to lift off while stationary in ground effect but does not allow it to transition to flight out of ground effect. Helicopter pilots are provided with performance charts which show the limitations for hovering their helicopter in ground effect (IGE) and out of ground effect (OGE).

  8. Harrowing video captures aerial Los Angeles firefighter's ...

    www.aol.com/news/harrowing-video-captures-aerial...

    The LAFD's Air Operations released a video Friday that showed helicopters flying above California's Santa Monica Mountains as the Palisades Fire rages below. ... Death Toll Rises As Los Angeles ...

  9. Inside the dramatic air attack that saved Brentwood and ... - AOL

    www.aol.com/news/inside-dramatic-air-attack...

    Brett Willis, Los Angeles Fire Department's battalion chief over air operations, said there were at least three sizes of helicopters flying during the attack, including ones that can hold 480 ...