Arneson Drives
 

I'm a big fan of these drives, but can someone explain the situation with the tabs as shown in this picture. I've never seen this before.

btw, The boat's for sale here on oso for only 22k, a pair of Arnesons costs way more. A good "parts" boat?..

I have seen the boat and it is in very good shape and all fresh water. The boat has a big flat pad built into the bottom from the factory for shallow water running (I assume?) It is also a wide beam boat .The tabs probably are designed this way for helping steering with that pad, (it's big) IMO. All of the drive components are in great shape. I thought about buying the boat also for those drives and the other hardware that's in it and mounting it on a powerplay 33 with staggered motors.

Those are Arneson 1720 Drive Units...

Yep.
Thanks Rik, but what's up with the trick tabs?
C

Aren't those and old-school rocker plate?

tabs
 

Thats the best of both ideas, tabs mounted flat and level or tabs mounted matching the bottom of the boat..Weird but probably works

I will name it "UNITAB"

Im guessing the lower tabs are for stabalization when the boat is at speed running up on its pad. Im not sure why you would to that when you can just lower your regular tabs.

Or an attempt to have the lower tabs hook the water and create bow lift.

Christian,

Can you post a link to the classified ad?

Thanks,
Kelly

?? People do some weird things

you can e-mail me at [email protected]

On the 1720's, are they right and left hand rotation or is it in the transmissions?

They are rotation dependent upon the input rotation to them, meaning one would have to have a means to turn one RH and one LH independently from the drives themselves.

These are very old units, like pre 1980. The 1721 as well as the ASD6 drop box have the rotation, reduction and drop built into them but the 1720's are an inline drive that are a very early version of the inline ASD6, although nothing is interchangeable other than the trim pumps and oil.