Agusta, Model: A109A, A109A II, and A109C

General | Ground Ops | Hover | Takeoff  | Cruise | Turns | Approach/LDG  | Comments | HAI Comment
 
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General
Maximum distance and altitude separation from noise-sensitive areas are the most effective means of noise abatement.
Control movement should be gradual and smooth. Noise exposure is:

  • lower behind than forward of the helicopter,
  • lower on the left side than on the right side of the helicopter,
  • lower to the sides of the flight path than directly underneath, and
  • lower upwind than downwind of the helicopter

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Ground Operations
No Available Information


Hover Hover-Taxi Ground Taxi
No Available Information


Takeoff and Climb
Take off into the wind. Climb at the best rate of climb in order to reach altitude as soon as possible.Avoid a maximum power climb over noise-sensitive areas, when possible.


Enroute and Cruise Flyover
When crossing noise-sensitive areas, limit airspeed to 130 knots.Plan routes to keep noise-sensitive areas on the left side of the helicopter.Where possible, maintain a minimum altitude of 1,500 feet above ground level.


 


Turns
No Available Information


Descent/Approach and Landing
The speed of approach should be approximately 60 knots throughout the descent, until just before landing.

Use a steeper than normal approach-an angle of approximately 12-15┬║ is best. This is almost the angle used for autorotation.

Do not increase the power until you are within 100 feet of the ground. Then flare and increase the power as for a normal landing.Plan the approach and landing to keep noise-sensitive areas to the left of the helicopterAvoid descending directly over noise-sensitive areas.

Comments
Cruising speed for the Agusta is 140-150 knots, which falls within the requirements of ICAO Annex 16, Chapter 8 standards for inflight noise levels. Speeds below 130 knots are noticeably quieter to people on the ground.

The A109C model is generally quieter than previous models.


Comments
Cruising speed for the Agusta is 140-150 knots, which falls within the requirements of ICAO Annex 16, Chapter 8 standards for inflight noise levels. Speeds below 130 knots are noticeably quieter to people on the ground.The A109C model is generally quieter than previous


HAI Commnet
N/A