Reply
 
Thread Tools Display Modes
Old 07-10-2015, 07:57 AM   #51
Senior Member
 
I-RV's Avatar
 
Join Date: Jun 2013
Location: Mount Laurel, NJ
Posts: 1,022
Quote:
Originally Posted by foretm View Post
2500MH
1st = 3.51:1
2nd = 1.90:1
3rd = 1.44:1
4th = 1.00:1
5th = .74:1
6th = .64:1


TC Ratio
TC-210 = 2.05
TC-211 = 1.91
TC-221 = 1.73
TC-222 = 1.58


Rear ratio. All I could find was from a 2015 newmar brochure on an XCR chassis:
http://www.newmarcorp.com/wp-content...a_Brochure.pdf

4.78:1
Wow, I found that math still works. With some assumptions and using the 4.78 axle ratio and a TC of two, I found that the grade that would halt a Berk with a GCWR of 33,000lbs and rated torque of 660 ft-lbs is very approximately:

15% grade with a 25% loss through the drive train.
17% grade with a 15% loss through the drive train.
__________________

__________________
Gale & Hank- 2012 Berkshire 390BH
I-RV is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



» Virginia Campgrounds

Reviews provided by




ForestRiverForums.com is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 10:58 PM.