engine rpm vs prop shaft rpm

7

7knots

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Oct 8, 2022
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Fluid Motion Model
C-24 C SE
Vessel Name
7knots
I have an 2015 R21-EC with Volvo Penta D1-30 diesel. Can anyone tell me what the gear reduction ratio is?
 
Not sure if this is what you are looking 4. I have a MS15L-B reverse gear on my 2014 D1-30

MS15A – reverse gear with 8° down angle output.
• Ratio 2.14:1/1.95:1 (RH/LH) and
2.63:1/1.95:1 (RH/LH).
MS15L – reverse gear with straight output.
• Ratio 2.14:1/1.95:1 (RH/LH) and 2.63:
1/1.95:1 (RH/LH).
 
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