Business Jet Approach Noise Abatement Techniques - Flight Test Results NASA Dryden Flight Research Center

Format:

Conference/Event

Author/Creator:

Putnam, Terrill W., author.

Conference Name:

National Business Aircraft Meeting and Engineering Display (1976-04-06 : Wichita, Kansas, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1976

Summary:

Operational techniques for reducing approach noise from business jet aircraft were evaluated in flight by measuring the noise generated by five such aircraft during modified approaches. Approaches with 4° glide slopes were approximately 4.0 EPNdB quieter than approaches with standard 3° glide slopes. Noise reductions for low-drag 3° approaches varied widely among the airplanes tested; the fleet-weighted reduction was 8.5 EPNdB. Two-segment approaches resulted in noise reductions of 7.0 EPNdB to 8.5 EPNdB 3 nautical miles and 5 nautical miles from touchdown. Pilot workload increased progressively for the 4°, low-drag 3°, and two-segment approach

Notes:

Vendor supplied data

Publisher Number:

760463

Access Restriction:

Restricted for use by site license