Motor Racing Vehicles - Measurement Methods
2 Cross – Soil Track
Location
Hedeland Cross
Date
99.07.13
Vehicle
One 250cc-class solo mc, 10 passbys
Microphone
1.5 m above ground (soil), 7.5 m from actual racing line
Speed
Average driving speed on measurement section of track: 21 m/s
Frequency (Hz)
63
125
250
500
1k
2k
4k
8k
Total
LWA (dB re. 1pW)
73.6
102.
9
110.
1
120.
1
118.
7
118.
7
118.
4
112.
8
125.5
LpAmaxF (dB re. 20µPa)
-
-
-
-
-
-
-
-
97.3
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