Wake Plate?

[rodltg2]

Bored browsing CL boat ads and came across an 87 American Skier, ( really good condition for $4900 bTw) and saw this. I wonder whats intended purpose was?

 

http://i21.photobucket.com/albums/b265/rodltg2/DSCN2733.jpg

 

http://i21.photobucket.com/albums/b265/rodltg2/DSCN2740.jpg

[MCskiFreak]

That is a cavitation plate with a small 2" tracking fin added to it to give a small increase in the lateral stability of the boat.

 

The cavitation plate in an inboard application has several functions. It does affect the wake some, but it also adds a small amount to the lifting surface of the boat, and also helps to keep the rudder from ventilating.

[Wish]

Wow great shape. Supra had these for years. They were manually adjustable to customize wake. Later they powered the adjustability. That does not look adjustable. Diddo to what MCskiFreak said.

[DW]

Malibu offered a similar device for barefooters called the SSP.

[6balls]

The American Skier Advance rocked the WSM boat tests as the best slalom boat back in the day. Looks like minimal to no spray relief pockets, though, so probably golf balls back there at shortline...though was supposed to have an incredible wake.

[skier2788]

I have an 86 Advance. Great wake but yes 35 and shorter you are just getting pelted back there. I went to 39 once and it felt like someone throwing buckets of water at your knees when you were crossing the wakes. This is me at 36 mph at 32 off. wakes are good but look how far back the spray is going.

[skier2788]

GRRR now I gotta figure out how to add a video.

[MCskiFreak]

The Legend and TBX resolved the spray issues with spray pockets and double chines.