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Old 08-22-2007, 06:24 PM   #29
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Old 08-22-2007, 06:29 PM   #30
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Quote:
Originally Posted by silverback
These days I put the cruise control at ~64 MPH. The trailer stays straight when the 18 wheelers pass and the truck gets better MPG (average in 13 MPG range towing). I am also obsessive about truck and trailer tire maintenance.
I'm with you SILVERBACK.
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Old 08-22-2007, 08:19 PM   #31
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I drive 55 while towing on the Interstate when the traffic is light and the lanes are open (---a common condition in Northern Maine.) Once it gets crowded I'll push it up to 60 - but seldom any higher. I prefer the country roads, where I can cruise along at 45 to 55, pulling over to let the locals go pass when I can do it safely. Although this produces good gas mileage, notwithstanding mountainous terrain, that fact really has little to do with it. It's simply my nature to travel slower than most - towing or not. As such, I've been rewarded with 54 years of accident-free, white-knuckle-free, and moving-violation-free driving, while enjoying about 1,000,000 miles behind the wheel.
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Old 08-22-2007, 09:31 PM   #32
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Glenn G,
I would love to try nitrogen but the only source around here is Costco and they won't do it unless you bought your tires there.

The next best thing would be to catch the draft behind the hemispherically inclined seņor Kevbo...

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Old 08-22-2007, 10:00 PM   #33
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Quote:
Originally Posted by Cracker
I drive 55 while towing on the Interstate when the traffic is light and the lanes are open (---a common condition in Northern Maine.) Once it gets crowded I'll push it up to 60 - but seldom any higher. I prefer the country roads, where I can cruise along at 45 to 55, pulling over to let the locals go pass when I can do it safely. Although this produces good gas mileage, notwithstanding mountainous terrain, that fact really has little to do with it. It's simply my nature to travel slower than most - towing or not. As such, I've been rewarded with 54 years of accident-free, white-knuckle-free, and moving-violation-free driving, while enjoying about 1,000,000 miles behind the wheel.
Wow, good for you Cracker. I have put on a lot of mileage and one look at my greatly abused face and body will confirm that, but in my youth I was what most parents fear - I had to do EVERYTHING in a hurry. My motorcycle days in particular were very hard on my body and my drivers license . Hitting a city bus broadside while racing a car with my motorcyle was just one of my episodes that gave my parents a lot of grief I'm sure they were amazed that I survived my teens.

Barry
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Old 08-23-2007, 12:13 AM   #34
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also about passing

I drive 65-70 without a trailer, even when it's 75 posted. It's just easier, and getting there 20-30 minutes earlier by going 5 MPH faster has never netted out for me. I must stop more often.

No one has mentioned passing yet in this thread, which is certainly a component of rate of travel. Passing is probably the most dangerous few moments you have while towing, except for evasive manuevers. If you're going a tad slower, chances are that you are passing less, therefore less chance for trouble.

A Calif CHP officer told me the following also, regarding towing and passing:

2 lanes of travel in your direction, you must stay in the right lane, except to pass when safe.
3 lanes of travel, same as above
4 or more lanes of travel, you may travel in the right two lanes ONLY, and passing can only be done in the lane to the left of the slow lane.

I see this rule violated every day, all the time.
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Old 08-23-2007, 03:45 AM   #35
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Quote:
Originally Posted by tetstream
No one has mentioned passing yet in this thread, which is certainly a component of rate of travel. Passing is probably the most dangerous few moments you have while towing, except for evasive manuevers. If you're going a tad slower, chances are that you are passing less, therefore less chance for trouble.

A Calif CHP officer told me the following also, regarding towing and passing:

2 lanes of travel in your direction, you must stay in the right lane, except to pass when safe.
3 lanes of travel, same as above
4 or more lanes of travel, you may travel in the right two lanes ONLY, and passing can only be done in the lane to the left of the slow lane.

I see this rule violated every day, all the time.
You make a good point about passing , it is dangerous for the passer and the passee . That is why I question the safety of traveling 55mph on an interstate that is posted 65mph , or in some states more . Just about everyone on the road with you will be passing . To be honest I'm not sure what a safe speed is , I tend to feel uncomfortable above 70 , so thats my limit . I once hit a deer while doing 55 , was that too fast ? A blowout at 50 is no fun , at 60 it's worse , should we travel at 40 ? I mostly drive and tow according to the conditions rather than a particular speed. Keep the shinny side up.
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Old 08-23-2007, 11:19 AM   #36
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Quote:
Originally Posted by altamont
I have heard that 65 mph is the highest speed safe for towing our baby. However, the tires are rated for much higher speed and the TV is very capable. Can 70-75 mph on level interstate pushing our limits? I seem to be passed by just about everything being towed.
Try driving your first 500 hours at 55 mph,

Then drive 500 hours at 60 mph,

Then graduate to 65 mph,

Your hours towing will be the best teacher for what is the best and safest speed,
FWIW

Don
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Old 08-23-2007, 07:53 PM   #37
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Quote:
Originally Posted by safari57
Wow, good for you Cracker. I have put on a lot of mileage and one look at my greatly abused face and body will confirm that, but in my youth I was what most parents fear - I had to do EVERYTHING in a hurry. My motorcycle days in particular were very hard on my body and my drivers license . Hitting a city bus broadside while racing a car with my motorcyle was just one of my episodes that gave my parents a lot of grief I'm sure they were amazed that I survived my teens.

Barry
You're not alone! I started my life on the highway by getting broadsided on my motorbike by a driver who raced through a light. That crushed my leg and put me on crutches for most of the summer when I was fourteen. That same year, three classmates were killed in separate motorcycle/motorscooter accidents. The school annual was dedicated to their memory. Later, when I was sixteen, my Olds coupe threw a rod enroute to the swimming hole. I parked it alongside the road, and eight of us piled into my buddy's 41 Chevy sedan. On the way home after swimming, he lost control, we flipped end over end and then rolled three times before coming to rest on our side in a water filled ditch. I got 23 stitches across the side of my head, my girlfriend fractured her neck, and the rest got off with bruises and minor cuts. No alchohol was involved and we were just plain lucky. Later on, during my High School years, I attended our Key Club formal, and upon arriving home, the ambulance driver from the funeral home next door (---funeral homes ran the ambulance service in Florida back in the 50's) came running over to ask me if I would go with him to a serious accident where a train had collided with a car. Still in my tuxedo I helped him put one of my classmates, who had been at the dance, in a rubber bag. Those experiences may have helped shaped my driving habits - but, without a doubt, they gave my mother a lot of gray hair!
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Old 08-23-2007, 09:09 PM   #38
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I am passed by everything

and it bothers me not. a few weeks ago I was travelling Hwy-80 in No.Cal. It's a real piece of dung road, rutted,pot holes, craters etc. The descent from Donner Pass around 7900 feet MSL. to Sacramento around 52 feet MSL has a handfull of 5, 6, and 7 percent downhill grades.As luck would have it because I'm the luckiest guy alive my trailer brakes decidied not to work. 32 foot excella- 93 454 burb. I thought about it for a minute then thought - what a perfect time for a real time test. Ease off the go pedal and drop the tranny into D not OD. Well the old 454 was able to slow the whole enchilata to 45-50 mph. even on the 7 % grade I only had to use the left pedal sparingly. How about them apples. Hey I'm keeping up with the big rigs and their smokin brakes anf jake brakes just a screaming.So what's a safe speed to tow at? Whatever you're comfortable with, I've run off cliffs while motorcycling , been in a head on collision, done an emergency ascent from 200 feet down, survived a few women, dodged a few bullets, mortars and rockets, drank a few bad bottles of wine and I'm still kickin. Just keep the greasy side down and don't let the nimrod behind you push you along. FWIW
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Old 08-24-2007, 08:52 AM   #39
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Doorgunner I agree with you. My father was a regional HR manager for a major east cost trucking company for over 29 years. Safety training was a major part of his job. I remember him saying many times that people assume that because semi's have air brakes they can stop on a dime and that causes them to do stupid things around semi's like pulling out in front of them and cutting them off, etc. But they don't realize that the mass in the trailer causes the rig to require much greater distances to stop than passenger cars and they needed more of a gap between them and the vehicle in front of them.

Now we all know that tractor/trailers fly down the interstate and most of them are going well over 75 MPH but we don't give that a second thought. When you compare the weight to brake surface area you get a pretty high ratio. When you compare our Airstreams and tow vehicle combo weights to brake surface area you get a much lower ratio. The braking of our rigs is much better than the braking of a semi rig but as soon as someone says they tow at 70 MPH or 75 MPH, everybody thinks they are the most dangerous thing on the road to themselves and to other motorist. Bear in mind also that most of us are towing for fewer hours per day than truck drivers and most of us got a good night sleep the night before and may or may not have been towing the day before. My point here is that we are usually less fatigued than the truckers, driving a rig that can stop quicker and is much more maneuverable than a 60-65 foot tractor/trailer rig (especially the dual trailer rigs) so I am comfortable towing at 70 MPH or even 75 MPH. I keep my trailer maintained and it is a relatively new trailer with less than 10,000 miles on it. Before starting this season I had the bearings packed, the brakes inspected, the tires inspected and the tire pressures topped off.

You really have to decide what you are comfortable with and not worry what others are comfortable with. You also have to realize that you are no more right in your decision about towing speed than they are.
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Old 08-24-2007, 04:32 PM   #40
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So, with all this about what is a safe speed, is there a cut and dry chart to look at that states what the safe speed vs weight is for the common Goodyear Marathons (which seem to have blowout issues if improperly inflated/loaded)?

I tend to keep it between 60 and 65, but must sometimes go faster for short spurts. Inquiring minds need to know.

I feel comfortable towing at 70 if the conditions exist, but I am concerned about the tires.
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Old 08-24-2007, 09:25 PM   #41
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Quote:
Originally Posted by romap
So, with all this about what is a safe speed, is there a cut and dry chart to look at that states what the safe speed vs weight is for the common Goodyear Marathons (which seem to have blowout issues if improperly inflated/loaded)?
Goodyear's RV tire brochure is at:

http://www.goodyear.com/rv/pdf/rvbrochure.pdf

The Marathon load/pressure chart is on page 9 and the information about operating the Marathons between 65MPH and 75MPH is in the yellowish box titled - IMPORTANT OPERATING INFORMATION.
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Old 08-24-2007, 09:51 PM   #42
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Quote:
Originally Posted by ljmiii
Goodyear's RV tire brochure is at:

http://www.goodyear.com/rv/pdf/rvbrochure.pdf

The Marathon load/pressure chart is on page 9 and the information about operating the Marathons between 65MPH and 75MPH is in the yellowish box titled - IMPORTANT OPERATING INFORMATION.
End of discussion!!

Thanks.
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