Bavaria Sail Boat - Propeller Recommendation

[dmfranch]

Which is the right 3 blades prop for my
Bav 40 2001 with engine MD22L BT  and drive Unit  120S-E 2.20

[geoff]

17 x 15 left Geoff on 40cc 2001

[dmfranch]

Is not 40 cc
Is 40 3 cabins
Does it make any difference?

[symphony2]

No. 17*15 was fitted to many boats of around 40' and the 50hp engine. First check the prop you have - the size will be stamped on the boss but often difficult to find under years of crud. second a way to check that the size is correct is to do a run at maximum with a clean bottom and flat water. You should be able to get within 200rpm of the quoted maximum rpm for the engine.

Note that the size is only for the fixed 3 blade. Folding and feathering props are often a different size and best to check with the maker of the prop for the recommended size.

[sy_Anniina]

If you have the old prop available and it was correct dimension, here are instructions, template and app on how to determine size (incl. pitch) https://sites.google.com/site/thepropellerhub/simple-pitch-measuring

Our three-blade folding (Volvo) prop is 18x15 on 2001 3-cabin Bavaria 40 with MD22 engine

An older thread on same topic http://bavariayacht.org/forum/index.php/topic,2289.0.html

BR,

Tommi
s/y Anniina

[dmfranch]

Thanks to everyone for your help, always valuable