How much horse power(vehicle) needed to pull 1000 tons weight trailer?

   / How much horse power(vehicle) needed to pull 1000 tons weight trailer? #52  
A lot of those puzzles are mental masturbation. Moving heavy objects would have to get extremely complex, especially 2M# going over 184 miles.
I remember my Dad (rip) telling the story when he worked for Sears downtown they had to move a large heavy safe across the street. He suggested rolling it on a row of heavy pipe laid across which worked.
Then about 50 years ago I worked for a place in a large building where the owners bid on and won three tractor trailer loads of government surplus. Unloading was like Christmas, everything in boxes.
One item was huge, in a crate. An environmental test chamber. By getting lots of extra help and using the pipe rolling technique we managed to get it loaded onto the freight elevator which was manual gear driven with pull ropes. On second floor we unloaded it, rolled along packing more surplus junk behind.
Weeks later one owner decided to uncrate it in the basement where power was.
Again we got lots of helpers except now it was near a flight of stairs. With ropes, chains, winches we finally got it on top step. I was one of the dummy volunteers downstairs to "help ease it down" as others pulled ropes back.
We finally got the nerve up tipping it off the edge. It took off, ropes breaking, people jumped for their lives. Over all the noise you could hear the owner yelling "shiiit...let 'er go!".
At the bottom it basically uncrated itself with one large "BOOM" as it imbedded in the concrete floor below. And that's where it stayed. We leveled it up, then wired it to the main nearby panel box.
That owner was a heavy drinker, and I'll always remember the day I heard something running in the basement. The chamber was running, I looked through the door window the owner sitting inside on a stool with a bottle of Jack and snow blowing around like a snow globe.
 
   / How much horse power(vehicle) needed to pull 1000 tons weight trailer? #53  
Yeah, 1k tons is a bunch of weight BUT.....how did people from long ago move stones that weigh 1600 tons?

The Largest Stones Ever Quarried | Select Stone

That is a deep rabbit trail. I've been following that specific topic for a few months.
The correct frequency to levitate stones have been demonstrated in eastern europe.
The old BS about slaves and rollers and is all that BS.
Technology hidden from the masses.

on edit: link- Ancient Art of Levitation | Cymatics, Fluid and Acoustic Frequencies - YouTube
 
   / How much horse power(vehicle) needed to pull 1000 tons weight trailer? #54  
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   / How much horse power(vehicle) needed to pull 1000 tons weight trailer?
  • Thread Starter
#55  
....these questions and answers are making my head explode. :banghead:

It's like asking: "How many oranges do I need to make an apple pie?"

Here goes:
1000 tons = 907,185 kg.

On earth, Gravity (g) accelerates objects at 9.81m/s^2, the rock with a mass (m) of 907,185 kg exerts a downward force (F=mg) on the trailer of (F=907,185kg x 9.81m/s^2 = 8,900,000 Newtons (or 8.9 mega-Newtons)

If there could be zero friction, in the trailer bearings, tire rolling resistance, air resistance, and on level ground, just the slightest of slight force (F) could move it horizontally. Specifically, this force would accelerate it at a rate that can be calculated. Force = mass x acceleration (F=m x a); or acceleration a = F/m. This acceleration would occur for as long as you applied that force. Given an infinite amount of time any force would accelerate it to light speed (if there is no friction or hills).

In "reality" (I know, a 1000 ton rock!), the "trailer"(!) has friction that needs to be overcome.
Here's where the problem gets tricky, as often this friction, and the force required to overcome it, is not a constant; or even linear. (Example: How much force is required to overcome wind resistance on a 10 ton truck? It depends not that the truck is 10 tons, but how fast it's going and it's shape (surface area, etc..))

....but for the sake of simplicity, let's say this friction is a constant 1% of the weight. (i.e. the coefficient of friction is .01).
(Example: I regularly push my 3000 lb sedan out of my flat garage with one hand; once rolling applying about 30 lbs of force easily keeps it at speed. So, coefficient of friction is about 1%. Follow?)
That is, while gravity is causing the rock to exert a downward force of 8.9 megaNewtons downward, we'll say it takes a Force (8.9 megaNewtons x .01 =) 89 kiloNewtons to overcome the friction and maintain a constant speed (neither accelerating or decelerating) once moving.
So any force over 89 kiloNewtons will start the trailer accelerating.
Applying 89 kiloNewtons on a 300km trip requires (89kN x 300 km = 26.7 x10^9 Newton-meters (or Joules). That's 26,700 kJ (kilo-joules) of ENERGY required for the trip.

Now HOW FAST DO YOU WANT TO MAKE THE TRIP? THAT determines the POWER that's required.
1 Watt = 1 Joule/sec.

Want to do it in 10 hours (36,000 seconds)?
Then it takes: 26,700 kJ/36,000s = 741.7 kiloWatts.
1 horsepower = 746 Watts, so that's: 1000 hp, just to overcome the friction at speed. ....on flatground.

You also need horsepower (actually: Force / torque) to accelerate it up to your travel speed of 30 km/h (for a 10 hour trip).
Let's say you only want to take 10 minutes to accelerate. (That's 600 seconds to get up to a speed 8.33 meters/sec (30 km/h). That's an acceleration rate of .0139m/sec^2

To accelerate the 907,185 kg rock at this rate requires a force of (F=m x a)= 12.6 kiloJoules of torque (9293 foot-pounds)(but only about 21hp!), on top of the 1000 hp it takes to maintain speed. (Yeah, I'm mixing units.)

You then need to brake that 1000 tons at the destination! Finding the equipment that does this (tractor and trailer) may be difficult. And if there's any hill or inclines....you're going to need a bigger tractor!

Yes, sir! Thanks a lot?
 
   / How much horse power(vehicle) needed to pull 1000 tons weight trailer? #56  
Maybe in theory. Even 1000 hp is only one hp per ton for the load itself. The trucks and trailer is probably another 1000 tons. Imagine trying to move a car with 1 hp. I guess it’s do able with enough gears but it would be turtle slow on flat ground and probably measured in inches per hour up hill. Using the fairly generous sounding rating of 300 hp my dump truck has 18 hp per ton loaded and it’s 30 or so mph up hills. A load like that will never hit 30 mph on flat ground but still only 1/2 hp or so per ton isn’t even close to enough.

Hey my Oldsmobile is 7 hp... and it might reach 30 mph
 
   / How much horse power(vehicle) needed to pull 1000 tons weight trailer? #57  
You can move it if you have the correct equipment and a company that knows how to do it. The Cape Hatteras Light House was moved in 1999. The weight moved was 4,830 tons. However, the way it was moved was by using rails and it only had to be moved 2,900 feet. The way it was moved was using hydraulic pusher jacks. One of the problems in moving extremely heavy weights is not damaging the surface over which the object is being moved.

You will need a trailer from someone like Goldhofer, or Schnabel. The Goldhofer trailers are modular and come in either towed or self-propelled versions. You would need to contact Goldhofer with your exact needs and they can recommend the trailer type and modular configuration. The Goldhofer trailers feature steerable axle line units that can be synchronized between all of the units to steer the trailer as it is moving forward. The Goldhofer trailers are rated to move at a rate of 1 km per hour.
 

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