Pilot Operating Handbook for the C42 Series
POH C42 SERIES ISSUE1 (B) REV7 25/04/2020
Page 18 of 73
1.12
Noise Table for BRP ROTAX 912 UL and
912 ULS
The C42 Series is in accordance with the regulations in force and does
not exceed the noise limit of 65dB (A)
1.12.1 ROTAX 912 UL
Propellers
dB (A)
C42
C42B
C42C C42CS
WARP DRIVE 2 blade
58.1
58.1
58.1
58.1
WAPR DRIVE 3 blade
59.4
59.4
59.4
59.4
Sport-Prop 3 blade
60.0
60
60.0
n/a
GSC 3 blade
59.27
59.27
59.27
n/a
Neuform CR2-75 2 blade
59.3
59.3
59.3
59.3
Neuform CR3-75 3 blade
55.8
55.8
55.8
55.8
Kiev Prop BB 263/1800 3 blade
59.1
59.1
59.1
59.1
Helix H50F 3 blade
59.6
59.6
59.6
59.6
1.12.2 ROTAX 912 ULS
Propellers
dB (A)
C42
C42B
C42C C42CS
WAPR DRIVE 3 blade
59.8
59.8
59.8
59.8
GSC 3 blade
59.8
59.8
59.8
n/a
Neuform CR3-75 3 blade
58.5
58.5
58.5
58.5
Neuform CR3-V-R2H 3 blade
59.0
59.0
59.0
59.0
Kiev Prop BB 283/1800 3 blade
59.7
59.8
59.8
59.8
Helix H50F 3 blade
59.7
59.7
59.7
59.7
DUC Flash 3 blade
59.5
59.5
59.5
59.5
