I’ve never seen one of these before!

[Scream And Fly]

I am extremely curious (to put it mildly) to know how this would run. Does anybody have more information on this ‘tandem speedmaster’?

394858

[mach351]

I read somewhere that was obviously and experimental Mercury attempt, and that they built two of them. One is in Fonduloc in Mercs “museum”. The other disappeared. I have seen the other one in Florida but am not really at liberty to say where. 394862

[Da Bull]

With good power I bet it would be a good drag racer.

[65gamblerman]

I think this happened back when Mercury was trying to complete against OMC V8 2nd Effort...

[CUDA]

Hydrofoil kind of look to it .

[30velocity]

Go to inline i6 Mercury outboard fan page. Facebook. Lots of info on it

[JPEROG]

Bolt that up to a 3.2 if it had a tall gear and look out. I can't imagine the net h.p. loss that it took away back when they didn't have it to give.

Joe

[davemvegas]

I see twice the drag. 3 times hp to turn compared to single lower. Add this up and you have a turd that looks cool in the museum.

[patchesII]

I think this happened back when Mercury was trying to complete against OMC V8 2nd Effort...

Well before the V8

[Tom Smyth]

wrong!!!

this was WAY before they had even dreamed up a V-6 motor, much less a V-8....

[Mugs914]

this was WAY before they had even dreamed up a V-6 motor, much less a V-8....

That what I thought. They had an I-6 on top of that thing, didn't they?

[Dave S]

Carl K. to Mr. Strang.......Beam me up.

[Tripps]

Probably on star trek. The kligons

[AZMIDLYF]

FUJIMO would be able to fill you in on this.

[JPEROG]

I see twice the drag. 3 times hp to turn compared to single lower. Add this up and you have a turd that looks cool in the museum.

Dave,

Those cases are tiny compared to a sportmaster. When I built my first XR6 case, I quickly learned how sensitive size is in relation to drag. It was unreal how much better the boat pulled. Now I get a close result by running the cheater pick up and or a remote pick up and get the case way up. Secondly the twin screw could be much better for slip and hole shot capabilities along with added lateral stability at real speed. I just don't think that they had the extra horsepower to get the intended result back then.

Joe

[Bodhi]

I'd bet there's zero chinewalk with this lower, especially if it's counter rotating

[powerabout]

this was WAY before they had even dreamed up a V-6 motor, much less a V-8....
so was in the 60's or early 70's?

[PARKER RABE]

i had that unit in my hands about 3 years ago......checked it out real good....:)

[PARKER RABE]

8 bolt pattern super bp

[powerabout]

So was it a Charlie Strang design?

[tux974]

Cool with a counter rotation setup.

[Da Bull]

Cool idea if built strong enough for high hp V-6`s. As for the drag comment, Not much drag in my opinion. You would have to drive a boat with a speedmaster lu to fully understand. An XR-6 lu comes close but a speedy just feels like it`s not there when you back off the gas.

[Ira Tindale]

one in winter haven at MIRAGE BOATS . alot cool stuff.