This SAE Recommended Practice establishes the procedure for measuring the maximum exterior sound level of pleasure motorboats while being operated under a wide open throttle condition or a maximum speed of 70 km/h (43.5 mph). It is intended as a guide toward standard practice and is subject to change to keep pace with experience and technical advances. Changes in this Revision: The response on the A-weighted network was changed from “Fast” to “Slow”. This resolves the primary difference between ISO 14509 and this document and also reduces the erroneous/unrepeatable results obtained because of wave slaps to the hull. To avoid safety issues a conversion factor was added to convert sound level readings taken at 25 m (82.5 ft) to sound level readings at 15 m (50 ft). The high speeds achieved by today’s modern boats in many cases do not allow for a safe pass-by test at wide open throttle, consequently the specification for maximum boat speed during the pass-by test has been limited to 70 km/h (43.5 mph) which also agrees with ISO 14509. A relationship to this document and ISO 14509 was added.
Exterior Sound Level Measurement Procedure for Pleasure Motorboats
26.07.2005
Aufsatz (Konferenz)
Englisch
Exterior Sound Level Measurement Procedure for Pleasure Motorboats
SAE Technical Papers | 2001
EXTERIOR SOUND LEVEL MEASUREMENT PROCEDURE FOR PLEASURE MOTORBOATS
SAE Technical Papers | 1977
EXTERIOR SOUND LEVEL MEASUREMENT PROCEDURE FOR PLEASURE MOTORBOATS
SAE Technical Papers | 1973
Exterior Sound Level Measurement Procedure for Pleasure Motorboats
SAE Technical Papers | 1973
|EXTERIOR SOUND LEVEL MEASUREMENT PROCEDURE FOR PLEASURE MOTORBOATS
SAE Technical Papers | 1991