NSS "fin" displacement

[High altitude]

Can anybody who owns a boat with an NSS system measure the displacement of the "fins" when they are deployed? I would like to know how much they extend vertically (downward) from the hull line as well as horizontally (away from the hull). I'm working on a little experiment with my '99 SN and it would be helpful. Also, does anybody know if those dimensions change for the different hulls. I know the actuator moves 2.5 inches (assuming Lenco didn't build Nautique a proprietary one) so it's simple trig to figure out the displacement. The problem is I don't if Nautique changes the angles of their mounting in different hulls. Thanks in advance! -Marc

[s_kelley2000]

Good luck Marc, I can't wait to see what you come up with. I might be mixing you up with somebody else but I believe it was you that was working on some surf gate stuff last fall before the NSS came out and were having some noticeable good results?

[nyryan2001]

Marc- that's gonna be real tuff to do.

the NSS won't deploy till over 8mph.

When it does, it extends straight down into the water.

so someone would have to be on the swim platform at surf speeds leaning over to get a shot of the NSS under the platform down into the water while underway.


sounds like fun. Let me see what I can do.

[High altitude]

Nyryan,
Thanks, I thought there might be some sort of override mode out of the water for maintenance. Yes, measuring during use might be a bit problematic!

Shawn,
That was me (trying to buils an SG system) but I ran into a major problem with the stepped hull design of the SN. I ran a protype NSS system last weekend and was actually very happy in comparision. I think my dimensions were a bit off on my prototype so that's why I started the thread. My next prototype is going to be allow me to move it out about 3/4 of an inch at a time (static system but rapidly reconfigurable) so I can start looking for optimal deployment distances. The ratio of side to vertical displacement would be nice to know...but in the end I can get there without this info. -Marc

[nyryan2001]

Now you understand how far the NSS extends is variable .... Based on the Surf Vert setting the driver has it set to. So for example, I run mine at Surf Vert 0. So Surf Vert 5 might beach further out.

[shawndoggy]

at our local boat show the dealer had the nss hooked up to a battery and a rocker switch so you could see what it did, manually extending it. It didn't come out far... I really doubt more than 2".

[robertsmcfarland]

every time you power up the boat the nss goes out then go back in, I was told this was a computer check on the nss system. if its on the lift or trailer you can watch it.

[BMANNING]

Here you go. Something from youtube...

http://youtu.be/u4vDjnsfaNw

[High altitude]

Thanks. I've seen the video and the pics. Was just wondering the exact dimensions. Not a big deal either way. I swear I saw a pic of the 210 that had a greater vertical displacement than that G23 in the video. Two inches seems the consensus for max horizontal displacement. I used about an inch in my first prototype and I could already seen some delayed convergence. -Marc

[Zach@n3]

Shawndoggy, I shipped those controls to that boat show .

[High altitude]

Zach,
Have you noticed a difference in the vertical extention between the different NSSs? Obviously, the shape is different due to the stepped hull. I am guessing a maximum of 1/2 inch vertical displacement. Does that seem about right to you? -Marc