Help! what the name of this part

[Mr. Josuas Siagian 0]

hi!

i have a research about this part on a ship. but i dont know the name of this part. so i difficulty to find the journal about it. so, please help me if anybody know the name of this part.

 

thanks

 

josua

[Ceyhan Erdem 14]

Hi Josuas,

 

with a rather quick search I came up with the term Grouches Spoiler.

 

https://www.marineinsight.com/naval-architecture/10-factors-considered-efficient-ship-propeller-design/

 

Cheers

Ceyhan