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11-17-2021, 06:54 PM
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#15
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Senior Member
Newmar Owners Club Freightliner Owners Club
Join Date: Jun 2011
Location: Texas
Posts: 6,400
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Quote:
Originally Posted by Nellybelle
On late models isn't there a difference between the Spartan and Freightliner chassis? I thought the Spartan was thicker?
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No. Newmar specifies frame thickness. Both are the same.
__________________
2022 London Aire 4551 * 2022 GD Imagine 2800BH * 2021 RAM 3500 DRW * 2020 Wrangler
NHSO (Newmar Hoot, Sevierville Original)
Kindness Matters
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11-17-2021, 09:32 PM
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#16
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Senior Member
Join Date: Sep 2017
Posts: 194
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Thank You
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11-18-2021, 10:11 AM
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#17
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Member
Join Date: Aug 2021
Posts: 67
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Quote:
Originally Posted by redbaron73
There are zero structural rigidity issues with a newmar full wall slide.
There are zero durability issues with a newmar full wall slide.
Your statement is naive at best and slanderous at the worst.
Just need to make sure others that read this understand that the OP has no facts to backup the statements and no prior newmar ownership experience
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Let me break it down for you Barney style.
You have two identical box cars with wheels and STAR platform. The only difference is box car A is fully enclosed. Box car B has 90% of the sidewall cut out and removed. Box car A has superior structural integrity. If box car C has 50% of the sidewall removed, it will have better structural integrity than box car B. No if's and's or but's. Thats the way it is. Period. It's called mechanical principles.
Can you feel the difference? Assume two identical cars are exactly the same in every aspect except for power. The only difference is car A has 350 bhp and car B has 300 bhp. Can you feel the difference in rear of the pants dyno during normal driving? Maybe or maybe not. But car A has more power. It's indisputable. It's not to say one is better than the other. It's just a fact that car A has 350 bhp and car B has 300 bhp. Period. End of discussion.
Prior ownership of a coach or car has no bearing on mechanical principles. Structural design integrity is universal across buildings, machines, cars, or anything being built by humans. I don't need to own a car to know that 350 bhp has more power than a 300 bhp car.
Get off you high horse. I didn't call your baby ugly. I've never seen your baby so I wouldn't know. Okay that's a joke.
__________________
2022 Newmar LA 4589
2018 Ford F-250 Platinum Diesel
2016 HD CVO Road Glide Ultra
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11-18-2021, 10:41 AM
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#18
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Member
Tiffin Owners Club
Join Date: Sep 2020
Location: Spartanburg, SC
Posts: 83
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Interesting that the author asks for an opinion between two coaches he is "considering", when in fact he has already ordered one of them
Then whenever someone has a different opinion he gets defensive.
Yes I have a Tiffin 45 OPP bus (which I love) but am considering a Newmar
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11-18-2021, 12:17 PM
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#19
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Senior Member
Join Date: Sep 2017
Posts: 194
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I just called Newmar regarding the thickness of the frame rails on the Spartan and Freightliner chassis. Newmar customer service referred me to Spartan and Freightliner.
Freightliner said they had NO idea and had never been asked that question?
I was instructed to go Freightliner website FCCCRV.com and I did.
Spartan pulled engineering specs .
Freightliner specs were 5/16 or 0.313
Spartan specs were 3/8 or 0.375
So Spartan would be thicker.
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11-18-2021, 02:46 PM
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#20
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Member
Join Date: Aug 2021
Posts: 67
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Quote:
Originally Posted by Nellybelle
I just called Newmar regarding the thickness of the frame rails on the Spartan and Freightliner chassis. Newmar customer service referred me to Spartan and Freightliner.
Freightliner said they had NO idea and had never been asked that question?
I was instructed to go Freightliner website FCCCRV.com and I did.
Spartan pulled engineering specs .
Freightliner specs were 5/16 or 0.313
Spartan specs were 3/8 or 0.375
So Spartan would be thicker.
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I believe you have a choice between Freightliner and Spartan on Newmar DP’s up to NA. MA’s and above are dedicated to the Spartan chassis.
Some people have stated that Freightliners have a tighter turning radius over the Spartan. But Spartan recently changed their passive steer axle cut from 9 to 17 degrees. It’s confusing because if you compare the Spartan front wheel turning radius and tag axle cut capability with Freightliner (2022 and above), you would think that Spartan chassis has the tighter turning radius. But if you ask people with experience on both chassis’s, they state that Freightliner has the tighter turning radius. It could be that the turning experience are from older DP models.
__________________
2022 Newmar LA 4589
2018 Ford F-250 Platinum Diesel
2016 HD CVO Road Glide Ultra
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11-18-2021, 02:51 PM
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#21
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Senior Member
Newmar Owners Club Freightliner Owners Club
Join Date: Jun 2011
Location: Texas
Posts: 6,400
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Quote:
Originally Posted by Nellybelle
I just called Newmar regarding the thickness of the frame rails on the Spartan and Freightliner chassis. Newmar customer service referred me to Spartan and Freightliner.
Freightliner said they had NO idea and had never been asked that question?
I was instructed to go Freightliner website FCCCRV.com and I did.
Spartan pulled engineering specs .
Freightliner specs were 5/16 or 0.313
Spartan specs were 3/8 or 0.375
So Spartan would be thicker.
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I think the more accurate question is what is the engineering spec for weight and force. That is what newmar specifies. How this is achieved is up to the vendor. Some may use thicker steel, and less reinforcement, others thinner steel and more cross bracing, etc.
Neither MFG makes a frame that won't twist, so newmar had to add additional cross bracing.
There is also a chemical difference between metals, and different grades of steel.
At the end, the spec newmar cares about is the minimum strength of the frame.
I have always owned a Freightliner, and would have one on my LA if it was an option. It is the better chassis IMHO.
__________________
2022 London Aire 4551 * 2022 GD Imagine 2800BH * 2021 RAM 3500 DRW * 2020 Wrangler
NHSO (Newmar Hoot, Sevierville Original)
Kindness Matters
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11-19-2021, 11:47 AM
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#22
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Senior Member
Spartan Chassis
Join Date: Mar 2017
Posts: 1,520
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I have a question for Road Hogg, the OP. What degree do you have in engineering? Are you a structural engineer, design engineer, or any kind of engineer at all? So far we have nothing to support that you know anything about engineering. What you think or believe doesn't make you right.
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11-21-2021, 11:27 AM
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#23
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Junior Member
Join Date: Oct 2021
Posts: 16
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I have 2021 LADP 4551 great floor plan you will love it. I’m not having any problems with the full wall slide.
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11-21-2021, 10:14 PM
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#24
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Member
Join Date: Aug 2021
Posts: 67
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Quote:
Originally Posted by Scnookiie
I have 2021 LADP 4551 great floor plan you will love it. I’m not having any problems with the full wall slide.
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Nice. What is your toad and how is the mpg?
__________________
2022 Newmar LA 4589
2018 Ford F-250 Platinum Diesel
2016 HD CVO Road Glide Ultra
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11-23-2021, 03:19 PM
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#25
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Senior Member
Newmar Owners Club
Join Date: Apr 2016
Location: Vail, Arizona
Posts: 2,057
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Quote:
Originally Posted by redbaron73
No. Newmar specifies frame thickness. Both are the same.
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If you go to the Newmar Factory in Nappannee and look at the FL and Spartan chassis sitting on their lot, you will see the difference. They are absolutely not the same.
As to the OP's post.
Bill
__________________
Bill & Chris Bélanger (KI1Z)
'04 Georgetown XL > '17 4018 DSDP FL > '18 DSDP 4327 K2> ‘21 LA 4551 K3
2018 JL Wrangler Rubicon 2 Door
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11-23-2021, 03:36 PM
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#26
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Senior Member
Monaco Owners Club Newmar Owners Club
Join Date: Jun 2011
Posts: 120
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Steel C channel strength is a factor of several factors
Height (major)
Width (minor)
Thickness (major)
PSI (major)
My last rig, Monaco Camelot, frame was only 6.5 inches high, 3/8 thick, but had a PSI of 100K vs most frames are 50K or 60K PSI.
If you want to compare frame strength you need all the factors and an engineers table (or the ability to make the comparison)
ken
__________________
ken
2009 Monaco Camelot
Newmar 2019 DS 4369, FL, HWH Active Air
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11-23-2021, 03:54 PM
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#27
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Senior Member
Join Date: Sep 2017
Posts: 194
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Thank you Ken.
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11-23-2021, 04:11 PM
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#28
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Senior Member
Newmar Owners Club Freightliner Owners Club
Join Date: Jun 2011
Location: Texas
Posts: 6,400
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Quote:
Originally Posted by kenk02
Steel C channel strength is a factor of several factors
Height (major)
Width (minor)
Thickness (major)
PSI (major)
My last rig, Monaco Camelot, frame was only 6.5 inches high, 3/8 thick, but had a PSI of 100K vs most frames are 50K or 60K PSI.
If you want to compare frame strength you need all the factors and an engineers table (or the ability to make the comparison)
ken
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That is the basis of my understanding. Thank you for clarifying with the correct technical terms. Newmar specifies the PSI (strength) of the frame..not how to design the frame.
__________________
2022 London Aire 4551 * 2022 GD Imagine 2800BH * 2021 RAM 3500 DRW * 2020 Wrangler
NHSO (Newmar Hoot, Sevierville Original)
Kindness Matters
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