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Old 12-30-2014, 02:52 PM   #29
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The MACA and DP were highline in 04 when I was looking to buy a coach.
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Old 01-02-2015, 07:20 AM   #30
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Originally Posted by Arch Hoagland View Post
Watched the video and thought about back in the 60's when Pontiac had power steering that was finger light to turn the wheel.
This is only about half true. The problem with the early passcar power steering was that while it was easy to park, it was even lighter at high speed and that was way too light to get decent feel (thus your comment).

With CD, at low speeds, it is very light like you are thinking, but at highway speed, you control how heavy you would like to have it. Turn the efforts all the way down and it is very (I mean REALLY!) light but turn the efforts all the way up and it is 12 times as stiff (more than twice the stiffness of a non-CD system). You get to match the high-speed efforts to your mood of the moment. No other system has that sort of controllable range.

A bit of trivia, the driver-controllable efforts were developed in response to a field trial situation where one person wanted the steering very light and another wanted it very heavy. The problem was that they were married to each other! This demonstrated the need to let the driver control it.
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Old 01-02-2015, 07:37 AM   #31
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Ken is it worth while to have CD in a gas coach?
Just need your input now that your here.
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Old 01-02-2015, 07:41 AM   #32
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And Ken, if it is worthwhile to have it in a gas coach, is it more a marketing, cost, or engineering reason at issue as to why it is limited to the dp chassis. Seems to me that Ford would have to sign on and that the modification has to occur at the chassis end before being sent to Newmar?
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Old 01-02-2015, 09:32 AM   #33
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Originally Posted by KenSherwin View Post
This is only about half true. The problem with the early passcar power steering was that while it was easy to park, it was even lighter at high speed and that was way too light to get decent feel (thus your comment).

With CD, at low speeds, it is very light like you are thinking, but at highway speed, you control how heavy you would like to have it. Turn the efforts all the way down and it is very (I mean REALLY!) light but turn the efforts all the way up and it is 12 times as stiff (more than twice the stiffness of a non-CD system). You get to match the high-speed efforts to your mood of the moment. No other system has that sort of controllable range.

A bit of trivia, the driver-controllable efforts were developed in response to a field trial situation where one person wanted the steering very light and another wanted it very heavy. The problem was that they were married to each other! This demonstrated the need to let the driver control it.
Thanks for the info. I remember driving a big old Pontiac Bonneville that was just too easy to steer. An adjustable touch should be great.
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Old 01-02-2015, 11:07 AM   #34
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I don't really know why the gassers don't have it. I don't know of a technical reason why gassers could not have it but I suspect the incremental cost adder would be more noticeable on the less expensive coaches. That would be a good question for the good folks in Nappanee. You gotta remember that I'm an engineer who looks at what is possible, not a salesman who looks at what he can sell or a marketing guy who looks at
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Come to think of it, I have no idea what marketing people look at.


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