| Main Title |
When Propfans Cruise, Will LDN 65 Fly. |
| Author |
Mintz, F. ;
Dickerson, W. ;
|
| CORP Author |
Environmental Protection Agency, Washington, DC.;National Aeronautics and Space Administration, Washington, DC. |
| Publisher |
Apr 90 |
| Year Published |
1990 |
| Stock Number |
N90-24864/2 |
| Additional Subjects |
Aircraft noise ;
Flight paths ;
Prop-fan technology ;
Propeller fans ;
Propeller noise ;
Routes ;
Ground tracks ;
Noise intensity ;
Transport vehicles ;
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
N90-24864/2 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
12p |
| Abstract |
The type and extent of response that may be expected from the persons exposed to the noise of propfans cruising overhead is examined. The cruise mode is of particular interest because it appears that it is in this mode that the propfan airplane noise differs substantially from the noise of present jet-powered airplanes. Early test data on propfan engines suggests that noise levels on the ground under the flight track of commercial propfan transports may approach 65 decibels. To explore the reaction of the exposed population to repeated noise levels of this magnitude, it may be helpful to review some of the pertinent literature on the effects of environmental noise. |
| Supplementary Notes |
In NASA, Langley Research Center, FAA/NASA en Route Noise Symposium p 195-206. |
| Category Codes |
46A; 68B; 51C; 85A |
| NTIS Prices |
(Order as N90-24853/5, PC A14/MF A02) |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
032022392 |
| Origin |
NTIS |
| Type |
CAT |
