Go Back  Offshoreonly.com > Owners Forum > Black Thunder
Switching to 380 K-Planes >

Switching to 380 K-Planes

Notices

Switching to 380 K-Planes

Old 04-17-2008, 11:21 AM
  #1  
Gold Member
Gold Member
Thread Starter
 
Join Date: Jan 2004
Location: Houston, Texas
Posts: 491
Likes: 0
Received 0 Likes on 0 Posts
Default Switching to 380 K-Planes

Anyone else have 380 K-Planes on a twin set up BT? I just completed the Tres Martin Performance Boat school and learned a lot about the hull. My 280 K-Planes are mounted too high so Tres and I agreed that the 380's may really help stabilize the boat in cross winds. Installing Saturday but was wondering if anyone else has done this? TH
THLWL is offline  
Old 04-17-2008, 01:47 PM
  #2  
Registered
 
excursion's Avatar
 
Join Date: Mar 2002
Location: Richmond Va
Posts: 2,276
Likes: 0
Received 1 Like on 1 Post
Default

I was thinking about doing the same to mine, let me know what happens. Thanks
excursion is offline  
Old 05-03-2008, 08:47 AM
  #3  
Registered
iTrader: (3)
 
Join Date: Dec 2006
Location: Chesapeake Bay
Posts: 2,494
Likes: 0
Received 1 Like on 1 Post
Default

We installed 380's on our 382, like them alot .
formula 382 sr-1 is offline  
Old 05-03-2008, 09:41 AM
  #4  
Gold Member
Gold Member
Thread Starter
 
Join Date: Jan 2004
Location: Houston, Texas
Posts: 491
Likes: 0
Received 0 Likes on 0 Posts
Default

So far we really like the 380's. My 280's were mounted about 4" above the hull bottom which is at least 3" too high. The boat is now real stable in cross winds if you have the tabs just touching the water. Very happy with them.
THLWL is offline  
Old 05-03-2008, 10:26 AM
  #5  
Registered
 
Join Date: Apr 2005
Location: San Diego, Ca
Posts: 952
Likes: 0
Received 1 Like on 1 Post
Default

Why in the heck would they mount them so high in the first place...?
Westcoast is offline  
Old 05-06-2008, 01:19 PM
  #6  
Forum Regulator
VIP Member
iTrader: (1)
 
Sydwayz's Avatar
 
Join Date: May 2001
Location: Worldwide
Posts: 23,811
Received 1,172 Likes on 511 Posts
Default

Only advice that I have is make sure you have plenty of outdrive and prop clearance when you make the switch.

I switched from 280s to 380s on my 37AT, and several people told me not to worry about lopping off the inside corners; as such that I will never get the drives close enough.

Well, I had my tabs at neutral, (they stay there all the time) and drives up a bit due to being in a shallow harbor. I had someone cut in front of me, and had to back up and turn in a hurry. I clipped one of the 380s with the trailing edge (props were spinning in reverse) of the prop, and fortunately did not have any prop damage. I did take a nick out of the trim tab. Normally, at idle, I don't ever move the drives from straight; and just use the two sticks to maneuver. Hence, I never worried about the tabs being at neutral.

I have since lopped off the inner corners of my tabs via a machine shop. I learned the hard way, but fortunately not the expensive way.
Sydwayz is offline  
Old 05-06-2008, 05:46 PM
  #7  
Gold Member
Gold Member
Thread Starter
 
Join Date: Jan 2004
Location: Houston, Texas
Posts: 491
Likes: 0
Received 0 Likes on 0 Posts
Default

But the difference is that mine were mounted 4" too high to begin with. So clearance is not an issue while under power. They will hit if the drive is ALL the way up and tabs are down quite a bit and wheel is turned all the way. Plus, I have a 9'6" beam so tabs are out there.
THLWL is offline  
Old 04-07-2009, 11:06 PM
  #8  
Registered
Gold Member
 
Join Date: Jul 2007
Location: Memphis Tn
Posts: 406
Likes: 0
Received 1 Like on 1 Post
Default

THLWL where did the 380s help. I had my props labbed. Now with full fuel load and 8 adults. Boat takes longer to plane now than before. Got me thinking about the 380s.
thanks Bob
BDARCHER is offline  
Old 04-08-2009, 08:40 AM
  #9  
Gold Member
Gold Member
Thread Starter
 
Join Date: Jan 2004
Location: Houston, Texas
Posts: 491
Likes: 0
Received 0 Likes on 0 Posts
Default

My boat did not have a planning issue. So the 380's really helped me in steadying the boat when cruising at an efficient speed. Cross wind doesn't affect it as much now. Real steady at speeds. Stabilized the boat some what in lieu of tilting, etc. with the large steps.
THLWL is offline  
Old 04-08-2009, 06:15 PM
  #10  
Registered
Gold Member
 
Join Date: Jul 2007
Location: Memphis Tn
Posts: 406
Likes: 0
Received 1 Like on 1 Post
Default

Thanks.'
I think ill give them a try.
Bob
BDARCHER is offline  

Quick Reply: Switching to 380 K-Planes


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.