Speed - Split from What's your gas mileage? - Page 6 - Fiberglass RV


Closed Thread
 
Thread Tools Search this Thread Display Modes
 
Old 09-15-2011, 07:13 PM   #71
Senior Member
 
Donna D.'s Avatar
 
Name: Donna D
Trailer: Escape 5.0 TA, 2014
Oregon
Posts: 24,433
Has anyone ever met anyone that would admit to being a bad driver? I know I haven't. So that must mean everyone is a safe, courteous and conscious driver.....

__________________

__________________
Donna D.
Ten Forward - 2014 Escape 5.0 TA
Double Yolk - 1988 16' Scamp Deluxe
Donna D. is offline  
Old 09-15-2011, 09:38 PM   #72
Senior Member
 
Borden's Avatar
 
Name: Borden and Carole
Trailer: Boler 1978 17' 4" Earlton Ont Model
Ontario
Posts: 1,002
Registry
Quote:
Originally Posted by BCDave View Post
Apparently it is quite common for the 4-way flashers to trigger the trailer brakes every time the tug's brake lights come on. It gives the exact same effect as if you stepped on the brake pedal - the rear brake lights circuit is powered up, sending a signal to the brake controller. If the controller has an 'aggressive" setting - for example like one would set it when towing something big & heavy, then the controller starts the sequence of applying trailer brakes.

Since I always have my setting such that my stopping distance is essentially the same towing as it is when "running bobtailed", I guess I must be using "an aggressive" setting. (What's the use of having trailer brakes if you still have a huge stopping distance?)

On the e-trailer site they have a little gizmo (essentially a blocking diode with a mounting bracket) designed specifically to deal with this (somewhat common) problem.
Thanks this is valuable info will check it out!
__________________

__________________
1978 Ontario made Boler
Borden is offline  
Old 09-21-2011, 03:27 PM   #73
Senior Member
 
Roger C H's Avatar
 
Name: Roger
Trailer: 2009 Trillium 1300 "Homelet"/2014 Subaru Outback "Rosie"
Washington
Posts: 2,172
Registry
Cool Speed

Just did a little calculation:

MPH --- FPS
50 ------ 73
55 ------ 81
60 ------ 88
65 ------ 95
70 -----103
75 -----110
80 -----117

Just select the speed you like to travel at in the left column, multiply the second column by your reaction time in seconds, and you will have the distance you travel BEFORE you even apply the brakes.

Now take the time in seconds it takes you to stop after applying your brakes, divide by two, multiply that by the right hand column, and add the result to the first calculation and you will have the total distance you will travel before coming to a complete stop.

I travel in the right lane at the truck speed limit. Might as well, SOMEONE has to do it, the trucks certainly don't! This means the actual limit, usually about 2-3 mph above indicated on the speedo. I like the interstates because people can get around. Secondary roads I find I accumulate a train which I let pass at the first opportunity.

I feel that the biggest problem is persons following too closely. I have someone on my rear bumper, pull over for them, and watch them hurry to get close to the person ahead of me. I think that a lot of people just have a bad habit of tailgating. However, consider this, of course you will overtake someone driving slower than you and those driving faster will overtake you! It is just logical.

Things happen faster and happen more severely at higher speeds.

For those who like statistics:

http://www-fars.nhtsa.dot.gov/Main/index.aspx
__________________
A charter member of the Buffalo Plaid Brigade!

Whether you think you can or think you can't, you're right.
Roger C H is offline  
Old 09-21-2011, 03:35 PM   #74
Senior Member
 
Roger C H's Avatar
 
Name: Roger
Trailer: 2009 Trillium 1300 "Homelet"/2014 Subaru Outback "Rosie"
Washington
Posts: 2,172
Registry
Cool Speed

How did i get duplicate posts?
__________________
A charter member of the Buffalo Plaid Brigade!

Whether you think you can or think you can't, you're right.
Roger C H is offline  
Old 09-21-2011, 03:44 PM   #75
Senior Member
 
floyd's Avatar
 
Name: Floyd
Trailer: 2004 13 ft Scamp Custom Deluxe
IllAnnoy
Posts: 6,046
Registry
Quote:
Originally Posted by BCDave View Post
Apparently it is quite common for the 4-way flashers to trigger the trailer brakes every time the tug's brake lights come on. It gives the exact same effect as if you stepped on the brake pedal - the rear brake lights circuit is powered up, sending a signal to the brake controller. If the controller has an 'aggressive" setting - for example like one would set it when towing something big & heavy, then the controller starts the sequence of applying trailer brakes.

Since I always have my setting such that my stopping distance is essentially the same towing as it is when "running bobtailed", I guess I must be using "an aggressive" setting. (What's the use of having trailer brakes if you still have a huge stopping distance?)

On the e-trailer site they have a little gizmo (essentially a blocking diode with a mounting bracket) designed specifically to deal with this (somewhat common) problem.
I can't really speak to just how common it is for the 4-ways to trigger the brakes since I have never even seen a car or truck in which it was possible. In fact on single light systems it is common for the circuitry to deactivate the 4-ways when the brakes are activated, when separate turnsignals are used, you can usually activate the brakes with the 4-ways on.
The electric brake controller receives it's signal from the activation of the brake pedal switch, while the 4-ways receive their signal from the column wiring harness, essentially through the turn signal circuitry. If your trailer brakes are activated by a turnsignal, or fourways...You've got wiring problems!
__________________
floyd is offline  
Old 09-21-2011, 03:57 PM   #76
Senior Member
 
floyd's Avatar
 
Name: Floyd
Trailer: 2004 13 ft Scamp Custom Deluxe
IllAnnoy
Posts: 6,046
Registry
Quote:
Originally Posted by Barrie Bochoff View Post
My comment assumes if you're driving at the speed limit, or below, and the traffic flow is moving faster than you, you're in the right lane. It would seem contradictory to give someone a ticket for 'not' breaking the law - going faster than the posted limit. I'd like to see that one prosecuted. In an increasing number of jurisdictions trucks are required to have speed limits programmed into the engine computers that can be checked at scales. The drivers can't change these in most instances. What's safe and prudent to some is considered inconsiderate to others.
Barrie
Barrie
The mistake in your comment is in saying...
"It would seem contradictory to give someone a ticket for 'not' breaking the law"
In Illannoy, if you are driving in the left lane at the speed limit and you have traffic stacking up behind you, you are in fact breaking the law.

As my mom used to say..."Two wrongs don't make a right"
__________________
floyd is offline  
Old 09-21-2011, 04:26 PM   #77
Senior Member
 
Name: Dave
Trailer: Bigfoot 25 RB and Bigfoot 21RB
British Columbia
Posts: 1,143
4 ways

I have literally never yet seen a vehicle where the 4-ways did NOT trigger the trailer brakes. Every one I have ever towed with (and there have been quite a few!), plus every one belonging to friends (including several new trucks that have factory pre-wired harnesses) all do it.

I therefore assumed that "this is how it is" and never thought about it further until someone on here said something about putting on their 4-ways when driving slowly - which caused me to say "you can do that?"

My way to check that my plug is inserted correctly is to turn on my 4-ways and try to pull the trailer.

Of the vehicles in my driveway that have controllers in them at present (a '76 LeMans, a 1980 Chev pickup, my '92 GMC and my '97 4Runner) (I am not including my '57 Chev here, because while it has a controller, it does not have 4-ways) all apply trailer brakes with the 4 ways. All have controllers professionally installed at various shops ranging from the car dealers, to an RV dealer/service shop to a professional hitch installer. The tugs belonging to friends also all have had their controllers installed at various shops. (and several are of a type that have the factory pre-wired "plug & play" harness for simplified installation as did the leased 2008 Dodge disease-el Ram 2500 that I was stuck with for a year)

The issue is that, no matter where you get the power from under the dash, it has the same effect of flashing the BRAKE lights - hence the brake light circuit is live, hence the trailer brakes apply when the brake lights come on. With all of them, applying the brakes while 4-ways are active simply leaves the brake lights on full time, and hitting a turn signal while the 4-ways are on has no effect as all 4 continue to flash.

The only place I can think of for getting power to the brakes sans any 4-ways effect might be to tap into the wire that powers the high-mounted "third brake light" - and only one of my tugs (the 4Runner) has that 3rd light!




Quote:
Originally Posted by floyd View Post
I can't really speak to just how common it is for the 4-ways to trigger the brakes since I have never even seen a car or truck in which it was possible. In fact on single light systems it is common for the circuitry to deactivate the 4-ways when the brakes are activated, when separate turnsignals are used, you can usually activate the brakes with the 4-ways on.
The electric brake controller receives it's signal from the activation of the brake pedal switch, while the Fourways receive their signal from the column wiring harness, essentially through the turn signal circuitry. If your trailer brakes are activated by a turnsignal, or fourways...You've got wiring problems!
__________________
BCDave is offline  
Old 09-21-2011, 05:39 PM   #78
Senior Member
 
AndyGee's Avatar
 
Name: Andy
Trailer: 1979 Ventura 13'
Alberta
Posts: 133
My '09 GMC with HD tow package has two separate feeds for trailer brake power one for controller power and one for the brakes that have to be dug out of the harness under the hood and connected to the fuse box aux power lugs. I know this because I installed my controller and the 4 ways do not activate it. The 4 ways will only activate the brakes if signal is taken after the flasher on the light circuit instead of from the break pedal switch unless the vehicle is wired with the flasher befor the brake switch. A simple fix would be to mount a second brake switch with it's own sourrce of power to signal the controller. Or the 4 way pulse could be caused because the brakes are getting their power from the lighting circuit and should be powered on it's own. A separate feed to the controller from the battery and from the controller to the trailer harness. Fused of course mine uses a 30amp
__________________
AndyGee is offline  
Old 09-21-2011, 10:04 PM   #79
Senior Member
 
floyd's Avatar
 
Name: Floyd
Trailer: 2004 13 ft Scamp Custom Deluxe
IllAnnoy
Posts: 6,046
Registry
Quote:
Originally Posted by BCDave View Post
I have literally never yet seen a vehicle where the 4-ways did NOT trigger the trailer brakes. Every one I have ever towed with (and there have been quite a few!), plus every one belonging to friends (including several new trucks that have factory pre-wired harnesses) all do it.

I therefore assumed that "this is how it is" and never thought about it further until someone on here said something about putting on their 4-ways when driving slowly - which caused me to say "you can do that?"

My way to check that my plug is inserted correctly is to turn on my 4-ways and try to pull the trailer.

Of the vehicles in my driveway that have controllers in them at present (a '76 LeMans, a 1980 Chev pickup, my '92 GMC and my '97 4Runner) (I am not including my '57 Chev here, because while it has a controller, it does not have 4-ways) all apply trailer brakes with the 4 ways. All have controllers professionally installed at various shops ranging from the car dealers, to an RV dealer/service shop to a professional hitch installer. The tugs belonging to friends also all have had their controllers installed at various shops. (and several are of a type that have the factory pre-wired "plug & play" harness for simplified installation as did the leased 2008 Dodge disease-el Ram 2500 that I was stuck with for a year)

The issue is that, no matter where you get the power from under the dash, it has the same effect of flashing the BRAKE lights - hence the brake light circuit is live, hence the trailer brakes apply when the brake lights come on. With all of them, applying the brakes while 4-ways are active simply leaves the brake lights on full time, and hitting a turn signal while the 4-ways are on has no effect as all 4 continue to flash.

The only place I can think of for getting power to the brakes sans any 4-ways effect might be to tap into the wire that powers the high-mounted "third brake light" - and only one of my tugs (the 4Runner) has that 3rd light!
I'll respectfully stand by my statement above and if you are ever in Illannoy you are welcome to come and check both of my TVs, One with separate turn signals and one without.
Mine are professionally installed as well, by me.
Do your trailer brakes fire when you use a turn signal? 4-ways are essentially the firing of both turn signals at once., used to be usually through a separate flasher.
__________________
floyd is offline  
Old 09-22-2011, 04:30 PM   #80
Senior Member
 
Name: Dave
Trailer: Bigfoot 25 RB and Bigfoot 21RB
British Columbia
Posts: 1,143
Quote:
Originally Posted by floyd View Post
I'll respectfully stand by my statement above and if you are ever in Illannoy you are welcome to come and check both of my TVs, One with separate turn signals and one without.
Mine are professionally installed as well, by me.
Do your trailer brakes fire when you use a turn signal? 4-ways are essentially the firing of both turn signals at once., used to be usually through a separate flasher.

I'm not disputing that it seems like I have an issue to be addressed.

No, a turn sig does not apply the brakes, but the 4-ways certainly do!

What I am saying is that it seems that EVERY tug I have seen has the same issue. If they all need fixing, so be it. Until I came across it on here, I was not aware that this was an issue at all - I thought that "this is how it works!" (esp given the ones with a "plug 'n' play" wiring harness installed at the factory)

I have since gone back to 3 different installers (including a Camping World) and all of them said that my '92 is wired correctly and "that's how they all workl"

Yes it is CERTAINLY possible that I keep finding installers who should not be trusted. (most shouldn't be anyway! )

So I dragged out the book that came with my new Prodigy 3. I checked the wiring diagrams and crawled under my dash. Yes, I am tapped into the correct wire, according to the wire colour ("color" for US readers)

I have no doubt that many tugs can use 4-ways sans trailer brakes applying, but in my experience the problem is far more common than not - after all - how many folks ever put the 4-ways on unless they are already stopped? It is not something I had ever done either, except to check my trailer brakes in the driveway. When I am forced to go slow on a steep uphill, I put my right-side turn sig on - not the 4ways, so again, it just never arose as an issue for me (until I saw a note on this thread about putting on the 4-ways when going slowly, causing me to ask how this is possible). Since I never use my 4-ways when in motion anyway, I may not even bother to "fix it".

I asked my trailer-towing friends about it as well - they never knew that it could work any other way, either, and none of them ever considered it to be 'wrong' or any sort of problem - that's just how they work!

One even said that "that's another reason why I like surge brakes instead of electric ones " as he, too, had never once encountered a tug where the 4-ways could be used sans the trailer brakes applying.


On a completely separate (but strange) issue, yesterday I was doing a favour ("favor" to our US readers) for a friend and moving her Trillium to her winter storage space for her. (her tug was in the shop for warranty service) She had removed the (inside a cabinet) battery. Every time I hit a bump, the Trill's brakes applied. Seems that the loose battery cables were hitting each other and shorting together, causing my charging circuit breaker to trip and somehow applying the trailer brakes - HARD!

I can understand how that would result in a dead short in my charging circuit, (tripping my breaker) but as to the brake application - No ideas on THAT one.
__________________
BCDave is offline  
Old 09-22-2011, 10:47 PM   #81
Senior Member
 
floyd's Avatar
 
Name: Floyd
Trailer: 2004 13 ft Scamp Custom Deluxe
IllAnnoy
Posts: 6,046
Registry
It occurs to me that I could be surprised and find that some of the less sophisticated vehicles from the previous century may perform as you describe,since I have not towed with electric brakes on all of them and you seem so adamant
,eventhough I checked with several people today with years of experience, who have towed with other makes, and who share my experience, and I have not run across the problem in my job or at the track.
(I am a retired fleet mechanic and former SCCA crew chief.)

I will try to find a vehicle which performs as you describe and will report back if I do.
Thanks for your input...This has been an interesting discussion and I always try to learn from every possible source.
I am, afterall,old enough to be well beyond the possibility of knowing everything!

Below is what the "Wiki-Geniuses" reports on the purposes of hazard flashers, I find that I use them more for the moving purposes than the stationary ones...



Hazard flashers
Also called "hazards", "hazard warning flashers", "hazard warning lights", "4-way flashers", or simply "flashers". International regulations require vehicles to be equipped with a control which, when activated, flashes the left and right directional signals, front and rear, all at the same time and in phase.[5][15] This function is meant to indicate a hazard such as a vehicle stopped in or near moving traffic, a disabled vehicle, a vehicle moving substantially slower than the flow of traffic such as a truck climbing a steep grade, or the presence of stopped or slow traffic ahead on a high speed road. Sometimes, they are used in severe fog conditions.[citation needed] Operation of the hazard flashers must be from a control independent of the turn signal control, and an audiovisual tell-tale must be provided to the driver. In vehicles with a separate left and right green turn signal tell-tale on the dashboard, both left and right indicators may flash to provide visual indication of the hazard flashers' operation. In vehicles with a single green turn signal tell-tale on the dashboard, a separate red tell-tale must be provided for hazard flasher indication.[5][15][71][72] Because the hazard flasher function operates the vehicle's left and right turn signals, a left or a right turn signal function cannot be provided while the hazard flashers are operating.
__________________
floyd is offline  
Old 09-23-2011, 02:57 AM   #82
Senior Member
 
Trailer:
Posts: 787
I haven't visited North America for a few years, so I lose touch on little differences and I don't know about four-ways on modern Merkan vehicles.

Here in Yurp one recent 'safety' idea is that on a few cars (sedans) the four-ways are triggered automatically if either the anti-lock (ABS) or the 'brake assist' is triggered - the idea being that either event means there may be an accident about to happen and it's better to warn those behind. I don't know if this idea will spread to all manufacturers or not - the take-up rate isn't fast, so it may just die out.

Now I think about it, it doesn't matter for trailer towing, since if the four-ways are triggered, the trailer brakes will already be on. Doh!
__________________
Andrew Gibbens is offline  
Old 09-23-2011, 06:05 AM   #83
Senior Member
 
Barrie Bochoff's Avatar
 
Name: Barrie
Trailer: 13 ft Trillium (sold 1/1/12)
New Brunswick
Posts: 293
Originally Posted by Barrie Bochoff
"My comment assumes if you're driving at the speed limit, or below, and the traffic flow is moving faster than you, you're in the right lane. It would seem contradictory to give someone a ticket for 'not' breaking the law - going faster than the posted limit. I'd like to see that one prosecuted."

Quote:
Originally Posted by floyd View Post
The mistake in your comment is in saying...
"It would seem contradictory to give someone a ticket for 'not' breaking the law"
In Illannoy, if you are driving in the left lane at the speed limit and you have traffic stacking up behind you, you are in fact breaking the law.

As my mom used to say..."Two wrongs don't make a right"
Ummmm.... Floyd.... READ my post again. My post you referred to assumed driving in the RIGht lane, not the left, where you say tickets might be issues. I also agree driving in the right lane and holding up traffic isn't courteous.
Barrie
__________________
Barrie Bochoff is offline  
Old 09-23-2011, 09:54 AM   #84
Senior Member
 
floyd's Avatar
 
Name: Floyd
Trailer: 2004 13 ft Scamp Custom Deluxe
IllAnnoy
Posts: 6,046
Registry
Quote:
Originally Posted by Barrie Bochoff View Post
Originally Posted by Barrie Bochoff
"My comment assumes if you're driving at the speed limit, or below, and the traffic flow is moving faster than you, you're in the right lane. It would seem contradictory to give someone a ticket for 'not' breaking the law - going faster than the posted limit. I'd like to see that one prosecuted."



Ummmm.... Floyd.... READ my post again. My post you referred to assumed driving in the RIGht lane, not the left, where you say tickets might be issues. I also agree driving in the right lane and holding up traffic isn't courteous.
Barrie
You are right , unless you are driving under the minimum in the right lane on the interstate, it would be contradictory to ticket you for obstructing traffic, and most likely could never happen. My bad.
__________________

__________________
floyd is offline  
Closed Thread


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Gas mileage better than expected DannyH General Chat 3 05-22-2011 09:59 PM
Just gas or gas/electric water heater? Feedback wanted. Bryan L. Care and Feeding of Molded Fiberglass Trailers 15 09-15-2010 10:11 AM
Gas Mileage Rob M General Chat 20 11-19-2007 08:19 AM
How To Get Better Gas Mileage Patrick M. Care and Feeding of Molded Fiberglass Trailers 29 10-01-2007 04:36 PM
Gas mileage vs. tire pressure General Chat 0 12-31-1969 07:00 PM

» Upcoming Events
No events scheduled in
the next 465 days.
» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 06:50 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.