Difference in RM8H and RR8S ?

[MSHappyCampers]

The 2002 Monaco sales brochure says the chassis is a RM8H.  I have been told it's a RR8S.  What is the difference?

[JDCrow]

I’ve read through this before to help. I’m no expert 

 

https://www.irv2.com/forums/f24/which-roadmaster-chassis-do-i-have-129117.html

[Dr4Film]

Joe,

You are lucky in that your 02 Windsor chassis is the RM8H and not the RR8S. Plus it is also called the S- Series Chassis which is the Semi-Monocoque Chassis that is described here -  https://docplayer.net/22482555-Roadmaster-s-series-semi-monocoque-chassis.html

The RM8H simply stands for Roadmaster 8 Bag (H-??) Don't know what the H stands for though.

The RR8S Chassis is a Raised Rail 8 bag with a side Radiator. Whereas the RR8R is the Raised Rail 8 Bag Rear Radiator.

Hope this helps!

[eddie4ne]

13 hours ago, Dr4Film said:

Joe,

You are lucky in that your 02 Windsor chassis is the RM8H and not the RR8S. Plus it is also called the S- Series Chassis which is the Semi-Monocoque Chassis that is described here -  https://docplayer.net/22482555-Roadmaster-s-series-semi-monocoque-chassis.html

The RM8H simply stands for Roadmaster 8 Bag (H-??) Don't know what the H stands for though.

The RR8S Chassis is a Raised Rail 8 bag with a side Radiator. Whereas the RR8R is the Raised Rail 8 Bag Rear Radiator.

Hope this helps!

I was confused, we have a 2002 Windsor PWD and we have a side radiator, so I referred to a pdf I have saved (see below). It say our Windsors have a RM8H chassis as stated. This is the Windsor specs.

https://documentcloud.adobe.com/link/review?uri=urn:aaid:scds:US:862c7bae-3432-4db1-ac77-1f20c13248b6

This site is invaluable! 

 

[MSHappyCampers]

18 hours ago, Dr4Film said:

Joe,

You are lucky in that your 02 Windsor chassis is the RM8H and not the RR8S. Plus it is also called the S- Series Chassis which is the Semi-Monocoque Chassis that is described here -  https://docplayer.net/22482555-Roadmaster-s-series-semi-monocoque-chassis.html

The RM8H simply stands for Roadmaster 8 Bag (H-??) Don't know what the H stands for though.

The RR8S Chassis is a Raised Rail 8 bag with a side Radiator. Whereas the RR8R is the Raised Rail 8 Bag Rear Radiator.

Hope this helps!

I read that the "H" is for H frame.  I think that must be what is called an "I" beam in the construction trades.

[JDCrow]

The axles are attached to the “H” frame (it’s the shape)

At each corner of the the “H” is an air bag and a shock, and these are attached to the main rail frame. (In a raised rail, or other structure in a mono coach)
 

This is why there is lots of play/sway in the system it seems. The H frames are up to 6’ in length with a squishy air bag packing all the body with its inertia rolling around. 

Edited May 17, 2021 by JDCrow