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New cobra super steering for all Magnum and Ultimate versions past and present

tabbibus

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242 Limited S E-Series
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I may or may not get to it today... But gotta say - this is a fine working system! I was a little hesitant about the upgrade actually as my previous setup was great, but this is a significant improvement. The no wake is so much better, it really felt like driving an outboard at times...
I’ll need to pay more attention to reverse, it is better with Fangs than the OEM/nothing but still limited with the factory RPM reverse limiter.

But, at least I can use the reverse at speed to slow down, unlike the E-boats. It’s crazy to disable reverse there, I think, if I had an E-series I would want the Cobras down at speed no question.

I don’t generally do any fancy stuff like splitting throttle binnacles, walking sideways and other tricks the guys are talking about here, I’m too simple.
but for my needs and wants - this is it, I think.

What happens with e boats?
 

swatski

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What happens with e boats?
You can not put them in reverse at speed... I don;t recall what is the limiter speed setting but it is kind of crazy if you ask me. I guess they do that to prevent people from executing the "sub-move"?

Need thrust to steer (otherwise you just plow forward like a log), not always the best option.
Being able to steer with no thrust saved my butt in the river many times.

--
 

swatski

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Got some testing today!
Tried the "S" maneuver. The fins work very well.

Here are some video clips (sorry for sloppy quality, hard to do this when alone, and no time for multiple takes), keep in mind the river is flood stage.

The first clip shows how stable the steering is - first 15 sec or so I just run strait with almost no manual input, the steering is amazingly stable.
The "figure S" maneuver at about 23sec - when cutting the engines (pulling both throttles from WOT into neutral, THEN initiating the "S" turn):

Here is another clip (engines cut at 11-12sec):

--
 

Cobra Jet Steering LLC

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Thank you @swatski Now we need to see what they do on a river in reverse against a current . Remember the mega fangs never bleed off the reverse thrust what they do is capture and direct more of it increasing the useable reverse power so with the new super fins and the mega fang plus it should be very impressive, I know you don't have the new mega fang plus on your boat however you do have the previous mega fang setup so that should work ok also.
 

Dennis P

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Maybe Jeff at Cobra Jet Steering can comment on this. I purchased my 2008 232 limited 3 years ago and the cobra steering is set up off set from the inner blade and outer blade, Please see the picture. How would you recommend it be set up? Is there any advantage to having it as the picture. Thanks in advance. Cobra Steering.jpeg
 
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Cobra Jet Steering LLC

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Ok that is the earlier 6 hole set of Ultimate steering the stagger is an option that is available on any of the ultimate versions and the magnum versions including the new super fins.
First off one feature of these systems is that the fins are adjustable , you can set the depth of the fins to your personal preference, since each fin is independently adjustable you can make more precise adjustments than just having both in the same place at the same time.
The inner fins are less effective at speed because the hull is blocking a portion of them the outer fins are exposed to the water due to the shape of the hull so if you were inclined to want a little less high speed influence you could adjust the outer fins up a bit and leave the inner ones alone. If you wanted more high speed influence you just put those back down all the way.

Obviously when the boat is down at slow speed the fins are all the way in the water , this was the reason I designed the new super fins, adding more surface area to the top of the fins automatically provides extra influence in off power, slow speed steering in both forward and reverse while automatically removing it from the equation once the boat is up on plane.
You still get to choose the influence level at planning speeds, so the previous owner liked that level of influence.
Once again I sure appreciate the person who posted the first picture and wish I could remember who .
This picture speaks a thousand words as to how steering is effected by the hulls speed and attitude yet the boat in the picture actually has no after market fins, that being said this picture just jumped out at me when I first saw it here on this web site.
It not only showed me the rudder and nozzle locations but some other important information that I won't discuss at this time.
What I will say is when people ask me why I do not add fins on the inside of the nozzles for the articulating keel twin engine boats this picture should explain it.
The cost increase to do that would deliver NO real benefit as the boat already has a steering rudder in the center, adding the second tie rod is much more important to balance out the system, allow for precise adjustments of the nozzle and fin alignment, it helps to prevent the right side steering cable from breaking directly in front of the nozzle arm "see second picture" if the rudder strikes the ground hard a very common issue with the original system and obviously for redundancy.
When you design a steering system that provides the level of steering at all speeds including steering control with no thrust you need to sit back and leave it alone .
perhaps you remember this from @swatski an s turn in a 24 foot boat with the controls in neutral
and
I did those with the original ultimate and fangs on a 24 foot boat years ago. I believe it is still on my you tube videos.
 

Attachments

Dennis P

Jetboaters Lieutenant
Messages
159
Reaction score
318
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Location
Montreal, Quebec, Canada
Boat Make
Yamaha
Year
2008
Boat Model
Limited
Boat Length
23
Ok that is the earlier 6 hole set of Ultimate steering the stagger is an option that is available on any of the ultimate versions and the magnum versions including the new super fins.
First off one feature of these systems is that the fins are adjustable , you can set the depth of the fins to your personal preference, since each fin is independently adjustable you can make more precise adjustments than just having both in the same place at the same time.
The inner fins are less effective at speed because the hull is blocking a portion of them the outer fins are exposed to the water due to the shape of the hull so if you were inclined to want a little less high speed influence you could adjust the outer fins up a bit and leave the inner ones alone. If you wanted more high speed influence you just put those back down all the way.

Obviously when the boat is down at slow speed the fins are all the way in the water , this was the reason I designed the new super fins, adding more surface area to the top of the fins automatically provides extra influence in off power, slow speed steering in both forward and reverse while automatically removing it from the equation once the boat is up on plane.
You still get to choose the influence level at planning speeds, so the previous owner liked that level of influence.
Once again I sure appreciate the person who posted the first picture and wish I could remember who .
This picture speaks a thousand words as to how steering is effected by the hulls speed and attitude yet the boat in the picture actually has no after market fins, that being said this picture just jumped out at me when I first saw it here on this web site.
It not only showed me the rudder and nozzle locations but some other important information that I won't discuss at this time.
What I will say is when people ask me why I do not add fins on the inside of the nozzles for the articulating keel twin engine boats this picture should explain it.
The cost increase to do that would deliver NO real benefit as the boat already has a steering rudder in the center, adding the second tie rod is much more important to balance out the system, allow for precise adjustments of the nozzle and fin alignment, it helps to prevent the right side steering cable from breaking directly in front of the nozzle arm "see second picture" if the rudder strikes the ground hard a very common issue with the original system and obviously for redundancy.
When you design a steering system that provides the level of steering at all speeds including steering control with no thrust you need to sit back and leave it alone .
perhaps you remember this from @swatski an s turn in a 24 foot boat with the controls in neutral
and
I did those with the original ultimate and fangs on a 24 foot boat years ago. I believe it is still on my you tube videos.

Thanks Jeff
 

Dennis P

Jetboaters Lieutenant
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Location
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Year
2008
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Boat Length
23
Maybe Jeff at Cobra Jet Steering can comment on this. I purchased my 2008 232 limited 3 years ago and the cobra steering is set up off set from the inner blade and outer blade, Please see the picture. How would you recommend it be set up? Is there any advantage to having it as the picture. Thanks in advance. View attachment 97104
Hi Jeff, do the MEGA FANGS PLUS work with the older model as per the picture ?
 
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