Counter rotating drives... Blackhawk etc
01-29-2015 | 02:25 PM
#11
Registered
Joined: Jan 2004
Posts: 4,480
Likes: 43
From: Tennessee
I'm pretty sure it's an 8" difference between the 2.
01-29-2015 | 07:32 PM
#12
Platinum Member
Joined: May 2013
Posts: 1,445
Likes: 502
From: Huntington Beach
The reason mercury stopped the Blackhawk program that I was told was you could only shift the drive at 600 rpms which limited the aplications for warranty's. and the Hoss props that we used to run in the 90s on the Scarab were 5 to 10 MPH faster then anything that Merc. had.
02-07-2015 | 11:33 AM
#13
Thread Starter
VIP Member
Joined: Feb 2004
Posts: 12,314
Likes: 1,556
From: Maryland
The reason mercury stopped the Blackhawk program that I was told was you could only shift the drive at 600 rpms which limited the aplications for warranty's. and the Hoss props that we used to run in the 90s on the Scarab were 5 to 10 MPH faster then anything that Merc. had.
04-01-2017 | 11:19 AM
#14
Registered
Joined: Mar 2017
Posts: 7
Likes: 0
blackhawk cleaver props
Just out of curiosity, If the Imco SCX-4 was available in a duo prop/counter rotating that used cleaver style props, would anyone use it? For higher horsepower smaller V's under 30 with the proper amount of rocker and smaller cats with higher horsepower. I think that there is a void in the market for a product where the blackhawk left off in the 90's
