Like Tree0Likes

Bennets or K-Planes

Old 11-14-2002, 10:50 PM
Posts: n/a
Cool Bennets or K-Planes

Question my 28' SleekCraft with a 22 degree deadrise. It has Bennet tabs now just basic they are 18" wide by 8 1/2 long. One plastic cylinder each. I frequent the ocean alot and was wondering how much I would benefit in ride quality in 3-4 foot seas with a set of Eddie Marine Billet tabs they are 12" wide by 16" long about $700 for the kit. Or they have a set of K-plane style billet tabs for approx $1400. Would I be improving by switching to one of these and if so would the 700 dollar pair be fine? I'm not interested in a 1 second gain in to plane speed. More concerned with going faster and smoother in ocean.
Reply With Quote
Old 11-14-2002, 11:11 PM
Enjoy the show
VIP Member
Ron P's Avatar
Join Date: Feb 2001
Location: The Joisey Shore
Posts: 10,353

I doubt you would ever feel the difference at the helm. Save the money for more gas. Or spend the money on indicators if you don't have them now.
Ron P is offline  
Reply With Quote
Old 11-15-2002, 12:20 AM
speel chekk this fokker!
Charter Member
puder's Avatar
Join Date: Feb 2001
Location: Locust Valley, New York
My Boats: 27' Scarab
Posts: 5,329

i know i bent the **** out of my bennets. Hence converting to k-planes. keep your eyes open you can find a used pair every now and again. I found mine here. But i've sen them on ebay o pretty cheap. like $400 with pumps. They will need to be repainted or coated and prolly rebiult but it will still be cheaper than $1400 for eddie marine planes or $2000 for merc planes
Pardon me, while I whip this out!
puder is offline  
Reply With Quote
Old 11-15-2002, 08:05 AM
Jana's Avatar
Join Date: Jan 2001
Location: Houston, TX
My Boats: 1996 Fountain 29 Fever
Posts: 929

I agree with Puder. The Bennetts are not as heavily-built. If you're out in the ocean a lot, I think you'd appreciate having tabs with a more substantial construction. I never bent the ones on my Donzi, but I've seen a few boats around my marina with bent Bennetts.
Jana is offline  
Reply With Quote
Old 11-15-2002, 09:51 AM
skatermike24's Avatar
Join Date: Mar 2001
Location: St.Cloud , Florida Osceola County
My Boats: 1995 Skater 24
Posts: 879

I would save the money and spend on your wife or girl, Worry about if they break, good luck
skatermike24 is offline  
Reply With Quote
Old 11-15-2002, 10:02 AM
Charter Member
Charter Member
Dean Ferry's Avatar
Join Date: Nov 2000
Location: Merritt Is. Fl. USA
My Boats: 2006 Hustler 388, 2004 Hustler Talon 25, 1999 30 Spectre cat and 2007 21' hydrostream voyager w/ Merc. 225 EFI
Posts: 6,580

Almost 2 years ago I had Marine Performance in Port Orange Fl. re-rig my 280 Velocity with an HP500/ Eickert Exhaust/Shotgun III Mufflers, added KE Full Hydraulic steering and 280s K-planes w/ Gaffrig Indicators and bunch of other items.
Needless to say our boat was a whole new animal, went for 64-65 MPH to 78-80 MPH, BUT the BIGGEST difference I noticed, beside the speed increase was the K-planes!! Of course I went from No Tabs to 280s BUT man what a difference! I can trim the attitude of my boat now for ALL kinds of different water conditions/loads
It made our boat alot more sea-worthy!
Just my experince.

Last edited by Dean Ferry; 11-15-2002 at 10:06 AM.
Dean Ferry is offline  
Reply With Quote
Old 11-15-2002, 12:01 PM
bajadude's Avatar
Join Date: Apr 2002
Location: Boca Raton, FL
My Boats: 340 Sundancer with 8.1s, formerly 1999 33 Outlaw HP500s
Posts: 708

If you do end up with k-planes. Be careful the first few times you use them. Besides being bigger, they are much more sensitive (i.e., they go up and down a whole lot quicker than the Bennetts).

One boat I had (Sonic) with Bennetts keep blowing seals. Switched to 280s and it was quite an improvement.
bajadude is offline  
Reply With Quote
Old 11-15-2002, 02:48 PM
Rough Seas Lie Ahead
Gold Member
Reckless32's Avatar
Join Date: Feb 2002
Location: Virginia Beach, VA
Posts: 2,465

It's my understanding that k-planes surfaces really are only 100% effective if you're running approx. 75mph or above for hydrodynamic effect. Otherwise, a good sport bennett package (12x12 with dual cylinders or equivalent to prevent bending under stress) are more appropriate. The fact that you only have 8.5" of length from hull is probably affecting you're rough water stability, but the 18" width is probably providing good lateral stability i.e. chining. At a minimum, I'd go with the sport 12x12's and depending on your engine/ speeds, maybe step up to the 280's...
Reckless32 is offline  
Reply With Quote
Old 11-15-2002, 03:46 PM
Gold Member
Panther's Avatar
Join Date: Sep 2002
Location: Elkton, MD
My Boats: 36' Apache Warrior / 22' Apache Scout
Posts: 11,838
Default I disagree

If money is the object than you have to go with the bennets.

If you want tabs that perform really well, don't flex, and don't break to often you have to go with K-planes.

A long time ago I use to run a fork-lift, and you have no idea how may bennet tab's we broke. We were putting in new pistons all the time.

I have seen only two K-planes break from a forklift, and that was because they left the tabs down and all the weight was on the tab.

I personally would never buy the Bennet Tabs for a performance boat. Those tabs are great for if there is a cross wind, but I have not had good experiences using them for offshore abuse.
Panther is offline  
Reply With Quote
Old 11-15-2002, 03:50 PM
mr_velocity's Avatar
Join Date: Apr 2002
Posts: 3,084

I left a set of 280 plates at Smitty's a few years back when I put the 300s on my boat. I wonder if they are still in Eddie's shop or they finally wound up on someone's boat.
I guess I should consider it a donation......
mr_velocity is offline  
Reply With Quote

Related Topics
Thread Starter
Last Post
Velocity Vector
General Q & A
09-02-2007 12:44 PM
General Boating Discussion
02-05-2004 08:51 AM
Vinny P
General Q & A
01-31-2003 09:34 PM
General Q & A
04-12-2002 02:31 PM

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -5. The time now is 01:58 PM.

Copyright 2011 OffShoreOnly. All rights reserved.