Question for truckers...

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dainthomas

Lifer
Dec 7, 2004
14,871
3,833
136
Originally posted by: Eli
Originally posted by: teknoid
First off I work for a trucking company (IT Director). We have around 400 trucks on the road. I hear from our drivers every day and they have some fairly "colorful" things to say about tailgaters.

The one thing that hasn't been discussed here is basic physics. It takes X amount of energy (I.E. fuel) to move a truck and a car down the highway. Drafting the truck adds to its load. Yes you're saving gas but you're costing the trucker fuel.

Our drivers make a monthly bonus based on number of miles driven and average MPG. If they hit their numbers they can take home up to an additional $1200 every month. If you're impacting their MPG in even a small way you're taking $$ out of their pockets. How would you like that?

I guess the good news is that if you're stupid enough to make a habit out of tailgating you'll very likely not live long enough to procreate.
Hmm, I never thought about that before. Are you sure it actually causes the truck to use more energy? The truck is already pushing the air out of the way, I'm just following in its wake? Curious.

The first law of thermodynamics is your friend. If you are gaining, someone else is losing.

Why do continue to argue when everyone has told you what you're doing is unsafe and toolish?
 

alkemyst

No Lifer
Feb 13, 2001
83,769
19
81
It's drafting, not drifting and most people don't do it close enough to be worthwhile.

Most of the idiots here have no idea anyway....most truckers don't care if you are doing it. If you do hit them it's going to be a non-issue with them anyway.

They really hate the lane changers though. Esp the ones that fly up and cut in front of them only to hit their brakes.
 

Dirigible

Diamond Member
Apr 26, 2006
5,961
32
91
Originally posted by: dainthomas
Originally posted by: Eli
Originally posted by: teknoid
First off I work for a trucking company (IT Director). We have around 400 trucks on the road. I hear from our drivers every day and they have some fairly "colorful" things to say about tailgaters.

The one thing that hasn't been discussed here is basic physics. It takes X amount of energy (I.E. fuel) to move a truck and a car down the highway. Drafting the truck adds to its load. Yes you're saving gas but you're costing the trucker fuel.

Our drivers make a monthly bonus based on number of miles driven and average MPG. If they hit their numbers they can take home up to an additional $1200 every month. If you're impacting their MPG in even a small way you're taking $$ out of their pockets. How would you like that?

I guess the good news is that if you're stupid enough to make a habit out of tailgating you'll very likely not live long enough to procreate.
Hmm, I never thought about that before. Are you sure it actually causes the truck to use more energy? The truck is already pushing the air out of the way, I'm just following in its wake? Curious.

The first law of thermodynamics is your friend. If you are gaining, someone else is losing.

Why do continue to argue when everyone has told you what you're doing is unsafe and toolish?

I find the idea that it costs a trucker fuel to have someone draft behind them very hard to swallow. In fact, I won't believe it unless I see actual data. As a cyclist, I draft off other cyclists all the time, and they off me. It makes a huge difference to draft behind another cyclist. Amazingly huge. Yet, when someone drafts behind me, I notice no difference whatsoever. None.

To be clear, I'm not advocating drafting right behind a truck. I'm just doubting that it costs the trucker money.
 

Darwin333

Lifer
Dec 11, 2006
19,946
2,329
126
Originally posted by: Eli
Originally posted by: Xyclone
Originally posted by: Raduque
Originally posted by: Eli

How do I know at what distance they can see me?

If you can't see both his mirrors, he can't see you.

QFT. Did you sleep through driver's ed, OP?
Dur. I knew that.

Yeah, I understand I guess. It's just a peace of mind thing for them.

That's understandable.

I'm still going to find drivers that don't care, though.

Oh, I see. You only want to drive very close to big ass 18 wheelers moving at a high rate of speed that are being operated by idiots.

Shrug, sucks for the driver that will take a hit on his license but if you leave your real info I will be happy to nominate you for your Darwin award when you crash and burn.
 
Jul 10, 2007
12,041
3
0
Originally posted by: Dirigible

I find the idea that it costs a trucker fuel to have someone draft behind them very hard to swallow. In fact, I won't believe it unless I see actual data. As a cyclist, I draft off other cyclists all the time, and they off me. It makes a huge difference to draft behind another cyclist. Amazingly huge. Yet, when someone drafts behind me, I notice no difference whatsoever. None.

To be clear, I'm not advocating drafting right behind a truck. I'm just doubting that it costs the trucker money.

yeah, i don't see how this makes sense either.
he's already displaced the air in front of him. how does the air behind him affect him?
 

TheChort

Diamond Member
May 20, 2003
4,203
0
76
Originally posted by: BlahBlahYouToo
Originally posted by: Dirigible

I find the idea that it costs a trucker fuel to have someone draft behind them very hard to swallow. In fact, I won't believe it unless I see actual data. As a cyclist, I draft off other cyclists all the time, and they off me. It makes a huge difference to draft behind another cyclist. Amazingly huge. Yet, when someone drafts behind me, I notice no difference whatsoever. None.

To be clear, I'm not advocating drafting right behind a truck. I'm just doubting that it costs the trucker money.

yeah, i don't see how this makes sense either.
he's already displaced the air in front of him. how does the air behind him affect him?

Same here.
I'm also a cyclist. Never notice a thing when someone drafts me.
 

Jeff7

Lifer
Jan 4, 2001
41,596
19
81
Originally posted by: BlahBlahYouToo
Originally posted by: Dirigible

I find the idea that it costs a trucker fuel to have someone draft behind them very hard to swallow. In fact, I won't believe it unless I see actual data. As a cyclist, I draft off other cyclists all the time, and they off me. It makes a huge difference to draft behind another cyclist. Amazingly huge. Yet, when someone drafts behind me, I notice no difference whatsoever. None.

To be clear, I'm not advocating drafting right behind a truck. I'm just doubting that it costs the trucker money.

yeah, i don't see how this makes sense either.
he's already displaced the air in front of him. how does the air behind him affect him?
That's my thinking, too. The air is being displaced anyway, and it leaves a sort of "bubble" behind the truck. Without a car there to take advantage of it, it's just being wasted - the work that went into creating that bubble is simply going nowhere. But if there's a car there, it's taking advantage of the work that's already been done.
It's not a free lunch, it's more like dumpster diving.
 

Turin39789

Lifer
Nov 21, 2000
12,218
8
81
Originally posted by: alkemyst
It's drafting, not drifting and most people don't do it close enough to be worthwhile.

Most of the idiots here have no idea anyway....most truckers don't care if you are doing it. If you do hit them it's going to be a non-issue with them anyway.

They really hate the lane changers though. Esp the ones that fly up and cut in front of them only to hit their brakes.

yea, cause they get to just scrape you off and get their load dropped off on time, and they don't track traffic incidents on their cdls. They probably appreciate the 30 minute break they get everytime someone rear ends them.
 

Howard

Lifer
Oct 14, 1999
47,982
10
81
Originally posted by: dainthomas
Originally posted by: Eli
Originally posted by: teknoid
First off I work for a trucking company (IT Director). We have around 400 trucks on the road. I hear from our drivers every day and they have some fairly "colorful" things to say about tailgaters.

The one thing that hasn't been discussed here is basic physics. It takes X amount of energy (I.E. fuel) to move a truck and a car down the highway. Drafting the truck adds to its load. Yes you're saving gas but you're costing the trucker fuel.

Our drivers make a monthly bonus based on number of miles driven and average MPG. If they hit their numbers they can take home up to an additional $1200 every month. If you're impacting their MPG in even a small way you're taking $$ out of their pockets. How would you like that?

I guess the good news is that if you're stupid enough to make a habit out of tailgating you'll very likely not live long enough to procreate.
Hmm, I never thought about that before. Are you sure it actually causes the truck to use more energy? The truck is already pushing the air out of the way, I'm just following in its wake? Curious.

The first law of thermodynamics is your friend. If you are gaining, someone else is losing.

Why do continue to argue when everyone has told you what you're doing is unsafe and toolish?
He's not gaining, he's merely minimizing the losses.
 

mugs

Lifer
Apr 29, 2003
48,920
46
91
Originally posted by: Dirigible
Originally posted by: dainthomas
Originally posted by: Eli
Originally posted by: teknoid
First off I work for a trucking company (IT Director). We have around 400 trucks on the road. I hear from our drivers every day and they have some fairly "colorful" things to say about tailgaters.

The one thing that hasn't been discussed here is basic physics. It takes X amount of energy (I.E. fuel) to move a truck and a car down the highway. Drafting the truck adds to its load. Yes you're saving gas but you're costing the trucker fuel.

Our drivers make a monthly bonus based on number of miles driven and average MPG. If they hit their numbers they can take home up to an additional $1200 every month. If you're impacting their MPG in even a small way you're taking $$ out of their pockets. How would you like that?

I guess the good news is that if you're stupid enough to make a habit out of tailgating you'll very likely not live long enough to procreate.
Hmm, I never thought about that before. Are you sure it actually causes the truck to use more energy? The truck is already pushing the air out of the way, I'm just following in its wake? Curious.

The first law of thermodynamics is your friend. If you are gaining, someone else is losing.

Why do continue to argue when everyone has told you what you're doing is unsafe and toolish?

I find the idea that it costs a trucker fuel to have someone draft behind them very hard to swallow. In fact, I won't believe it unless I see actual data. As a cyclist, I draft off other cyclists all the time, and they off me. It makes a huge difference to draft behind another cyclist. Amazingly huge. Yet, when someone drafts behind me, I notice no difference whatsoever. None.

To be clear, I'm not advocating drafting right behind a truck. I'm just doubting that it costs the trucker money.

I really don't think it reduced the fuel economy of the truck. The energy savings from drafting comes from greater aerodynamic efficiency. The work is not being shifted from one vehicle to the other, less total work is being done.

I don't think you save much gas at all by drafting trucks though.
 
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