What are these holes for? *PIC*

bpd119

Seaman
Joined
Mar 21, 2008
Messages
59
wondering what these are for, i thought i had through the prop exhaust, but water and exhaust appear to come from these 2 holes. what is their purpose?


DSC0179011.jpg
 

tonyg11780

Petty Officer 3rd Class
Joined
Mar 29, 2008
Messages
75
Re: What are these holes for? *PIC*

Those are exhaust ports...some of your engines exhaust will exit through those holes...
 

Silvertip

Supreme Mariner
Joined
Sep 22, 2003
Messages
28,771
Re: What are these holes for? *PIC*

They are exhaust relief holes. At idle, there is a fair bit of back pressure on the through-hub exhaust so the exhaust exits through those two holes along with a little water mist. At speed it all exits through the prop.
 
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