Arneson on a 20 Cig?
04-15-2012 | 09:57 AM
#11
arneson-industries.com
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From: California
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Arneson Surface Drives www.arneson-industries.com
Arneson Surface Drives www.arneson-industries.com
04-15-2012 | 06:10 PM
#12
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From: Cincinnati, OH
Faster - I'm guessing your referring to the 22' Blackhawks, not a 32.
Off topic but I've ridden in a couple of Blackhawk boats and they scare the crap out of me. Granted the first one I was in the guy had just bought, was trying to learn how to drive it and we were dodging logs all through Lake Cumberland
Off topic but I've ridden in a couple of Blackhawk boats and they scare the crap out of me. Granted the first one I was in the guy had just bought, was trying to learn how to drive it and we were dodging logs all through Lake Cumberland
04-15-2012 | 06:21 PM
#13
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From: Maryland
A successful hull with any fully surfacing drive will need natural rocker in the bottom. Otherwise, the thrust line is too high. That makes the boat roll up toward its nose and bow steer. Unfortunately, a 20 Cig bottom is very straight and true. Not good for a surfacing drive - unless you are able to lower with spacers (not possible on an Arneson).
Rocker's why a Donzi 32 ran great with Blackhawks. My old Scarab with a single Blackhawk was almost impossible drive at speed due to bow steer. It was +- 30 degrees of heading every time it landed after a launch - because the nose did the steering. Same was true of the few they built with KAAMAs back in the 1980's.
Furthermore, as a single, your Cig will tend to torque roll opposite the direction of prop rotation. (At least Blackhawk, with counter rotating props, didn't have that problem.) You would need constant tab to offset. At the power you're talking about, your easiest and cheapest solution to your drive dilemma is to leave the Arneson on the floor and buy a Bravo XR. Drive trim is your friend. My 2
cents.
Rocker's why a Donzi 32 ran great with Blackhawks. My old Scarab with a single Blackhawk was almost impossible drive at speed due to bow steer. It was +- 30 degrees of heading every time it landed after a launch - because the nose did the steering. Same was true of the few they built with KAAMAs back in the 1980's.
Furthermore, as a single, your Cig will tend to torque roll opposite the direction of prop rotation. (At least Blackhawk, with counter rotating props, didn't have that problem.) You would need constant tab to offset. At the power you're talking about, your easiest and cheapest solution to your drive dilemma is to leave the Arneson on the floor and buy a Bravo XR. Drive trim is your friend. My 2
cents.
04-17-2012 | 09:28 PM
#14
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Joined: Aug 2005
Posts: 6,306
Likes: 1
From: Between A Womans Leggs in IL
fixx
A successful hull with any fully surfacing drive will need natural rocker in the bottom. Otherwise, the thrust line is too high. That makes the boat roll up toward its nose and bow steer. Unfortunately, a 20 Cig bottom is very straight and true. Not good for a surfacing drive - unless you are able to lower with spacers (not possible on an Arneson).
Rocker's why a Donzi 32 ran great with Blackhawks. My old Scarab with a single Blackhawk was almost impossible drive at speed due to bow steer. It was +- 30 degrees of heading every time it landed after a launch - because the nose did the steering. Same was true of the few they built with KAAMAs back in the 1980's.
Furthermore, as a single, your Cig will tend to torque roll opposite the direction of prop rotation. (At least Blackhawk, with counter rotating props, didn't have that problem.) You would need constant tab to offset. At the power you're talking about, your easiest and cheapest solution to your drive dilemma is to leave the Arneson on the floor and buy a Bravo XR. Drive trim is your friend. My 2
cents.
Rocker's why a Donzi 32 ran great with Blackhawks. My old Scarab with a single Blackhawk was almost impossible drive at speed due to bow steer. It was +- 30 degrees of heading every time it landed after a launch - because the nose did the steering. Same was true of the few they built with KAAMAs back in the 1980's.
Furthermore, as a single, your Cig will tend to torque roll opposite the direction of prop rotation. (At least Blackhawk, with counter rotating props, didn't have that problem.) You would need constant tab to offset. At the power you're talking about, your easiest and cheapest solution to your drive dilemma is to leave the Arneson on the floor and buy a Bravo XR. Drive trim is your friend. My 2
cents.
04-18-2012 | 07:42 AM
#15
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Joined: Aug 2001
Posts: 4,008
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From: Aurora Ontario
I wish I could still run mine. Too bad there isn't an SCX version
04-18-2012 | 01:56 PM
#16
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The one I measured was flat. Maybe its bottom was worked over. If the boat in question has rocker, like you describe, then the Arneson may work. (That was the original question.) Still will be expensive, though. Prop alone will cost close to what a Bravo does.
