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[GMCnet] 4-Bags & Reaction Arms [message #241142]

Mon, 24 February 2014 14:50

Ken Henderson

Messages: 8726
Registered: March 2004
Location: Americus, GA

Karma:

Senior Member

New discussion:

One of the benefits of the OEM air bag system is that it telegraphs middle
wheel loading to the rear wheel. That supposedly improves the ride, as
demonstrated by the famous railroad ties demonstration.

However, that design turned out to impose a serious problem also: During
braking, the middle wheel "pole vaults", raising the rear of the coach.
That raising lightens the vertical force on the rear wheel so that it is
incapable of generating as much retarding force as the middle wheel -- so
it tends to slide prematurely. An even WORSE consequence of the OEM design
is that the air bag, dependent on the center wheel's vertical bag arm to
react the rear wheel up-force, now finds that reaction missing -- the
center wheel "pole vaulted" it away.

Thus the development of the different 4-bag (Quad Bag, etc) systems.
Despite other claimed benefits, IMHO the major benefit of those systems is
the fact that the center pedestal preserves a reaction member for the rear
wheel. While pole vaulting of the center wheel still reduces the possible
braking force on the rear, at least it's not totally eliminated as with the
OEM.

SO, if there's validity to my argument that pole vaulting led to, and
justified, the 4-Bag systems, should we not consider that, with pole
vaulting eliminated by reaction arms, there was/is no justification for
4-bag systems?

Since I've run the 4-bag system since long before the development of the
reaction arms, I'm purely speculating when I propose that reaction arms
make 4-Bags redundant -- and perhaps even detrimental to ride quality. I'd
like to hear from those who've tried all the combinations -- even though
I'm not about to give up either upgrade.

WOW! -- And all with 1 finger!

Ken H.
Americus, GA
'76 X-Birchaven w/Cad500/Howell EFI & EBL
www.gmcwipersetc.com
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach

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[Message index]

		[GMCnet] 4-Bags & Reaction Arms By: Ken Henderson on Mon, 24 February 2014 14:50
		Re: [GMCnet] 4-Bags & Reaction Arms By: Dave Mumert on Mon, 24 February 2014 16:21
		Re: [GMCnet] 4-Bags & Reaction Arms By: mikethebike on Mon, 24 February 2014 16:54
		Re: [GMCnet] 4-Bags & Reaction Arms By: USAussie on Mon, 24 February 2014 18:25
		Re: [GMCnet] 4-Bags & Reaction Arms By: Ken Henderson on Mon, 24 February 2014 19:14
		Re: [GMCnet] 4-Bags & Reaction Arms By: Bob de Kruyff on Sun, 02 March 2014 19:11
		Re: [GMCnet] 4-Bags & Reaction Arms By: corleyw on Mon, 03 March 2014 11:28
		Re: [GMCnet] 4-Bags & Reaction Arms By: Ken Henderson on Mon, 03 March 2014 14:45
		Re: [GMCnet] 4-Bags & Reaction Arms By: Jim Bounds on Mon, 24 February 2014 18:01
		Re: [GMCnet] 4-Bags & Reaction Arms By: Matt Colie on Mon, 24 February 2014 21:00
		Re: [GMCnet] 4-Bags & Reaction Arms By: Ken Henderson on Tue, 25 February 2014 08:20
		Re: [GMCnet] 4-Bags & Reaction Arms By: corleyw on Tue, 25 February 2014 09:00
		Re: [GMCnet] 4-Bags & Reaction Arms By: A Hamilto on Tue, 25 February 2014 11:36
		Re: [GMCnet] 4-Bags & Reaction Arms By: mikethebike on Tue, 25 February 2014 13:43
		Re: [GMCnet] 4-Bags & Reaction Arms By: A Hamilto on Tue, 25 February 2014 14:33
		Re: [GMCnet] 4-Bags & Reaction Arms By: Matt Colie on Tue, 25 February 2014 14:53
		Re: [GMCnet] 4-Bags & Reaction Arms By: Jim Bounds on Tue, 25 February 2014 15:25
		Re: [GMCnet] 4-Bags & Reaction Arms By: mikethebike on Tue, 25 February 2014 15:37
		Re: [GMCnet] 4-Bags & Reaction Arms By: A Hamilto on Tue, 25 February 2014 17:35
		Re: [GMCnet] 4-Bags & Reaction Arms By: mikethebike on Tue, 25 February 2014 18:33
		Re: [GMCnet] 4-Bags & Reaction Arms By: A Hamilto on Tue, 25 February 2014 15:44
		Re: [GMCnet] 4-Bags & Reaction Arms By: jhbridges on Tue, 25 February 2014 19:16
		Re: [GMCnet] 4-Bags & Reaction Arms By: jhbridges on Tue, 25 February 2014 19:06
		Re: [GMCnet] 4-Bags & Reaction Arms By: Matt Colie on Wed, 26 February 2014 10:57
		Re: [GMCnet] 4-Bags & Reaction Arms By: jhbridges on Wed, 26 February 2014 12:10
		Re: [GMCnet] 4-Bags & Reaction Arms By: Keith V on Wed, 26 February 2014 09:57
		Re: [GMCnet] 4-Bags & Reaction Arms By: Matt Colie on Wed, 26 February 2014 12:30
		Re: [GMCnet] 4-Bags & Reaction Arms By: Keith V on Wed, 26 February 2014 13:34
		Re: [GMCnet] 4-Bags & Reaction Arms By: jhbridges on Tue, 25 February 2014 18:32
		Re: [GMCnet] 4-Bags & Reaction Arms By: mikethebike on Wed, 26 February 2014 17:54
		Re: [GMCnet] 4-Bags & Reaction Arms By: jhbridges on Wed, 26 February 2014 19:14
		Re: [GMCnet] 4-Bags & Reaction Arms By: Jim Bounds on Tue, 25 February 2014 14:22
		Re: [GMCnet] 4-Bags & Reaction Arms By: Ken Henderson on Tue, 25 February 2014 16:38
		Re: [GMCnet] 4-Bags & Reaction Arms By: GMC_LES on Tue, 25 February 2014 20:14
		Re: [GMCnet] 4-Bags & Reaction Arms By: Ken Burton on Wed, 26 February 2014 04:48
		Re: [GMCnet] 4-Bags & Reaction Arms By: Jim Bounds on Wed, 26 February 2014 06:30
		Re: [GMCnet] 4-Bags & Reaction Arms By: A Hamilto on Wed, 26 February 2014 12:15
		Re: [GMCnet] 4-Bags & Reaction Arms By: Jp Benson on Wed, 26 February 2014 07:32
		Re: [GMCnet] 4-Bags & Reaction Arms By: jhbridges on Wed, 26 February 2014 07:44
		Re: [GMCnet] 4-Bags & Reaction Arms By: Matt Colie on Tue, 25 February 2014 12:45
		Re: [GMCnet] 4-Bags & Reaction Arms By: stick miller on Tue, 25 February 2014 16:52
		Re: [GMCnet] 4-Bags & Reaction Arms By: Bill Freeman on Tue, 25 February 2014 09:38
		Re: [GMCnet] 4-Bags & Reaction Arms By: Bill Freeman on Tue, 25 February 2014 09:44
		Re: [GMCnet] 4-Bags & Reaction Arms By: WildBill on Tue, 25 February 2014 19:55
		Re: [GMCnet] 4-Bags & Reaction Arms By: WildBill on Tue, 25 February 2014 21:23
		Re: [GMCnet] 4-Bags & Reaction Arms By: sgltrac on Wed, 26 February 2014 10:38
		Re: [GMCnet] 4-Bags & Reaction Arms By: WildBill on Wed, 26 February 2014 18:38
		Re: [GMCnet] 4-Bags & Reaction Arms By: A Hamilto on Wed, 26 February 2014 19:28
		Re: [GMCnet] 4-Bags & Reaction Arms By: Ken Henderson on Wed, 26 February 2014 19:47
		Re: [GMCnet] 4-Bags & Reaction Arms By: kerry pinkerton on Wed, 26 February 2014 19:43
		Re: [GMCnet] 4-Bags & Reaction Arms By: WildBill on Thu, 27 February 2014 00:02
		Re: [GMCnet] 4-Bags & Reaction Arms By: WildBill on Thu, 27 February 2014 13:16
		Re: [GMCnet] 4-Bags & Reaction Arms By: Gary Berry on Fri, 28 February 2014 12:17
		Re: [GMCnet] 4-Bags & Reaction Arms By: A Hamilto on Fri, 28 February 2014 12:35
		Re: [GMCnet] 4-Bags & Reaction Arms By: Matt Colie on Fri, 28 February 2014 13:39
		Re: [GMCnet] 4-Bags & Reaction Arms By: corleyw on Sat, 01 March 2014 12:34
		Re: [GMCnet] 4-Bags & Reaction Arms By: mikethebike on Sat, 01 March 2014 14:38
		Re: [GMCnet] 4-Bags & Reaction Arms By: corleyw on Sat, 01 March 2014 16:00
		Re: [GMCnet] 4-Bags & Reaction Arms By: USAussie on Sat, 01 March 2014 16:30
		Re: [GMCnet] 4-Bags & Reaction Arms By: mikethebike on Sat, 01 March 2014 17:39
		Re: [GMCnet] 4-Bags & Reaction Arms By: mikethebike on Sat, 01 March 2014 17:42
		Re: [GMCnet] 4-Bags & Reaction Arms By: USAussie on Sat, 01 March 2014 18:34
		Re: [GMCnet] 4-Bags & Reaction Arms By: mikethebike on Sat, 01 March 2014 18:46
		Re: [GMCnet] 4-Bags & Reaction Arms By: USAussie on Sat, 01 March 2014 19:00
		Re: [GMCnet] 4-Bags & Reaction Arms By: corleyw on Sat, 01 March 2014 21:07
		Re: [GMCnet] 4-Bags & Reaction Arms By: corleyw on Sat, 01 March 2014 21:38
		Re: [GMCnet] 4-Bags & Reaction Arms By: mikethebike on Sat, 01 March 2014 21:50
		Re: [GMCnet] 4-Bags & Reaction Arms By: corleyw on Sun, 02 March 2014 08:56
		Re: [GMCnet] 4-Bags & Reaction Arms By: hal kading on Sun, 02 March 2014 13:32
		Re: [GMCnet] 4-Bags & Reaction Arms By: James Hupy on Sun, 02 March 2014 14:01
		Re: [GMCnet] 4-Bags & Reaction Arms By: WD0AFQ on Sun, 02 March 2014 14:16
		Re: [GMCnet] 4-Bags & Reaction Arms By: corleyw on Mon, 03 March 2014 11:48
		Re: [GMCnet] 4-Bags & Reaction Arms By: hal kading on Mon, 03 March 2014 12:39
		Re: [GMCnet] 4-Bags & Reaction Arms By: corleyw on Mon, 03 March 2014 12:59
		Re: [GMCnet] 4-Bags & Reaction Arms By: hal kading on Mon, 03 March 2014 16:10
		Re: [GMCnet] 4-Bags & Reaction Arms By: Carl S. on Mon, 03 March 2014 21:32
		Re: [GMCnet] 4-Bags & Reaction Arms By: k2gkk on Sun, 02 March 2014 15:06
		Re: [GMCnet] 4-Bags & Reaction Arms By: hal kading on Sun, 02 March 2014 16:38
		Re: [GMCnet] 4-Bags & Reaction Arms By: dwayne jacobson[1] on Sun, 02 March 2014 16:50
		Re: [GMCnet] 4-Bags & Reaction Arms By: James Hupy on Sun, 02 March 2014 17:31
		Re: [GMCnet] 4-Bags & Reaction Arms By: A Hamilto on Sun, 02 March 2014 16:28
		Re: [GMCnet] 4-Bags & Reaction Arms By: corleyw on Mon, 03 March 2014 11:43
		Re: [GMCnet] 4-Bags & Reaction Arms By: Matt Colie on Tue, 04 March 2014 09:09
		Re: [GMCnet] 4-Bags & Reaction Arms By: A Hamilto on Mon, 03 March 2014 15:24
		Re: [GMCnet] 4-Bags & Reaction Arms By: USAussie on Mon, 03 March 2014 15:50
		Re: [GMCnet] 4-Bags & Reaction Arms By: jhbridges on Sun, 02 March 2014 08:54
		Re: [GMCnet] 4-Bags & Reaction Arms By: C Boyd on Sat, 01 March 2014 15:45
		Re: [GMCnet] 4-Bags & Reaction Arms By: James Hupy on Sat, 01 March 2014 16:06
		Re: [GMCnet] 4-Bags & Reaction Arms By: Matt Colie on Sat, 01 March 2014 15:52
		Re: [GMCnet] 4-Bags & Reaction Arms By: USAussie on Sat, 01 March 2014 17:20
		Re: [GMCnet] 4-Bags & Reaction Arms By: KB on Sat, 01 March 2014 15:55
		Re: [GMCnet] 4-Bags & Reaction Arms By: corleyw on Sat, 01 March 2014 16:07
		Re: [GMCnet] 4-Bags & Reaction Arms By: Ken Henderson on Sat, 01 March 2014 16:20
		Re: [GMCnet] 4-Bags & Reaction Arms By: Mr ERFisher on Sat, 01 March 2014 18:24
		Re: [GMCnet] 4-Bags & Reaction Arms By: USAussie on Sat, 01 March 2014 16:25
		Re: [GMCnet] 4-Bags & Reaction Arms By: k2gkk on Sun, 02 March 2014 16:11
		Re: [GMCnet] 4-Bags & Reaction Arms By: Keith V on Tue, 04 March 2014 08:33
		Re: [GMCnet] 4-Bags & Reaction Arms By: KB on Sat, 01 March 2014 16:46
		Re: [GMCnet] 4-Bags & Reaction Arms By: Bob de Kruyff on Sun, 02 March 2014 19:09
		Re: [GMCnet] 4-Bags & Reaction Arms By: LYNN L on Mon, 03 March 2014 13:33

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