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  • The Definition Of Acceleration

    THE DEFINITION OF ACCELERATION
    .... Just received this!!:thumbleft:


    .

    > Read this thru slowly and try to comprehend the amount of force produced for
    > just under 4 seconds!
    >
    > There are no rockets or airplanes built by any government in the world that
    > can accelerate from a standing start as fast as a Top Fuel Dragster!
    >
    >
    >
    >
    > THE DEFINITION OF ACCELERATION
    >
    >
    >
    > One top fuel dragster 500 cubic inch Hemi engine makes more horsepower than
    > the first 4 rows of stock cars at the Daytona 500.
    >
    > It takes just 15/100ths of a second for all 6,000+ horsepower of an NHRA Top
    > Fuel dragster engine to reach the rear wheels.
    >
    > Under full throttle, a dragster engine consumes 1-1/2 gallons of nitro
    > methane per second; a fully loaded 747 consumes jet fuel at the same rate
    > with 25% less energy being produced.
    >
    > A stock Dodge Hemi V8 engine cannot produce enough power to drive the
    > dragster's supercharger.
    >
    > With 3,000 CFM of air being rammed in by the supercharger on overdrive, the
    > fuel mixture is compressed into a near-solid form before ignition. Cylinders
    > run on the verge of hydraulic lock at full throttle.
    >
    > At the stoichiometric (stoichiometry: methodology and technology by which
    > quantities of reactants and products in chemical reactions are determined)
    > 1.7:1 air/fuel mixture of nitro methane, the flame front temperature
    > measures 7,050 deg F.
    >
    > Nitro methane burns yellow... The spectacular white flame seen above the
    > stacks at night is raw burning hydrogen, dissociated from atmospheric water
    > vapor by the searing exhaust gases.
    >
    > Dual magnetos supply 44 amps to each spark plug. This is the output of an
    > arc welder in each cylinder.
    >
    > Spark plug electrodes are totally consumed during a pass. After halfway, the
    > engine is dieseling from compression, plus the glow of exhaust valves at
    > 1,400 deg F. The engine can only be shut down by cutting the fuel flow.
    >
    > If spark momentarily fails early in the run, unburned nitro builds up in the
    > affected cylinders and then explodes with sufficient force to blow cylinder
    > heads off the block in pieces or split the block in half.
    >
    > In order to exceed 300 mph in 4. 5 seconds, dragsters must accelerate an
    > average of over 4G's. In order to reach 200 mph (well before half-track),
    > the launch acceleration approaches 8G's.
    > Dragsters reach over 300 miles per hour before you have completed reading
    > this sentence.
    >
    > Top fuel engines turn approximately 540 revolutions from light to light!
    > Including the burnout, the engine must only survive 900 revolutions under
    > load.
    >
    > The redline is actually quite high at 9,500 rpm.
    >
    > Assuming all the equipment is paid off, the crew worked for free, and for
    > once NOTHING BLOWS UP, each run costs an estimated $1,000.00 per second.
    >
    > The current top fuel dragster elapsed time record is 4.428 seconds for the
    > quarter mile (11/12/06, Tony Schumacher, at Pomona , CA ). The top speed
    > record is 336.15 mph as measured over the last 66' of the run (05/25/05 Tony
    > Schumacher, at Hebron , OH ).
    >
    > Putting all of this into perspective:
    >
    > You are driving the average $140,000 Lingenfelter 'twin-turbo' powered
    > Corvette Z06. Over a mile up the road, a top fuel dragster is staged and
    > ready to launch down a quarter mile strip as you pass. You have the
    > advantage of a flying start. You run the 'Vette hard up through the gears
    > and blast across the starting line and pass the dragster at an honest 200
    > mph. The 'tree' goes green for both of you at that moment.
    >
    > The dragster launches and starts after you. You keep your foot down hard,
    > but you hear an incredibly brutal whine that sears your eardrums and within
    > 3 seconds, the dragster catches and passes you. He beats you to the finish
    > line, a quarter mile away from where you just passed him.
    >
    > Think about it, from a standing start, the dragster had spotted you 200 mph
    > and not only caught, but nearly blasted you off the road when he passed you
    > within a mere 1,320 foot long race course.
    >
    > ...... and that my friend, is ACCELERATION!





    A hunch is creativity trying to tell you something.

  • #2
    old but always a good read.... aren't physics great!?
    Trees aren't kind to me...

    currently: 2 88Ls (Scrappy and Jersey), 88LX, 90L(Pepe), 91L, 91GL (Skippy) 93 GL Sport (the Mighty Favakk), 94 (Bruce) & 95 Aspire SEs, 97 Aspire (The Joker),
    94 Justy 4WD, 87 Fiero GT, plus 2 parts cars. That's my fleet.

    Comment


    • #3
      indeed
      Walth

      Festiva #1: 91 Red L 4/5
      http://www.fordfestiva.com/forums/sh...ad.php?t=27981

      Comment


      • #4
        Another fun fact

        Several years back, a Seismologist was impressed with the ground shaking feel you get when top fuel dragsters leave the line, he decided to bring his equipment to Pamona for an experiment, after putting the probes in the ground around the complex and mutiple tests, the seismograph showed the ground shook to the toon of 3.9 on the Rickter scale, thats impressive, but i wounder what happens when the shuttle launches. any thoughts
        An idea can turn to dust or magic, depending on the talent that rubs against it.

        Comment


        • #5
          Originally posted by boydg1 View Post
          > There are no rockets or airplanes built by any government in the world that
          > can accelerate from a standing start as fast as a Top Fuel Dragster!

          I disagree per:



          Specifically:

          "The motor ignited after the missile had been ejected from its silo by gas pressure, and accelerated the Sprint with more than 100 g. Within seconds, the missile reached a speed of Mach 10+, and the extreme thermodynamic heating demanded sophisticated ablative shielding (the nose was already glowing red-hot less than a second after launch)."

          Interesting reading none the less.

          I also wonder about:

          "....the fuel mixture is compressed into a near-solid form before ignition."

          Might have to look into this.
          '93 Blue 5spd 230K(down for clutch and overall maintanence)
          '93 White B6 swap thanks to Skeeters Keeper
          '92 Aqua parts Car
          '93 Turquoise 5spd 137K
          '90 White LX Thanks to FB71

          "Your God of repentance will not save you.
          Your holy ghost will not save you.
          Your God plutonium will not save you.
          In fact...
          ...You will not be saved!"

          Prince of Darkness -1987

          Comment


          • #6
            Technically, acceleration is any change in velocity over time. If I were to floor the brakes in my car going 300mph or so and stop in 3 seconds, I would have accelerated just as much as that car.
            1990 White L-Plus 5-speed rust-machine
            Scrapped

            1991 Blue L 5-speed
            daily driver, intermittent project

            1993 rustless wonder
            A shell, awaiting suspension, brakes, and B6T

            Comment


            • #7
              Originally posted by Basement_Modder View Post
              Technically, acceleration is any change in velocity over time. If I were to floor the brakes in my car going 300mph or so and stop in 3 seconds, I would have accelerated just as much as that car.
              Technically true!
              But does your car actually run at the moment?
              Let alone due 300 MPH

              You know if were doing 60 MPH, hit a wall and stopped in 1/2 sec, you would experience a higher acceleration force.
              '93 Blue 5spd 230K(down for clutch and overall maintanence)
              '93 White B6 swap thanks to Skeeters Keeper
              '92 Aqua parts Car
              '93 Turquoise 5spd 137K
              '90 White LX Thanks to FB71

              "Your God of repentance will not save you.
              Your holy ghost will not save you.
              Your God plutonium will not save you.
              In fact...
              ...You will not be saved!"

              Prince of Darkness -1987

              Comment


              • #8
                Originally posted by Pu241 View Post
                Technically true!
                But does your car actually run at the moment?
                Let alone due 300 MPH

                You know if were doing 60 MPH, hit a wall and stopped in 1/2 sec, you would experience a higher acceleration force.
                My car runs and drives, but I'm stripping it down for a restoration now that I've confirmed that.
                1990 White L-Plus 5-speed rust-machine
                Scrapped

                1991 Blue L 5-speed
                daily driver, intermittent project

                1993 rustless wonder
                A shell, awaiting suspension, brakes, and B6T

                Comment


                • #9
                  Definition of de-acceleration

                  Originally posted by boydg1 View Post
                  THE DEFINITION OF ACCELERATION
                  .... Just received this!!:thumbleft:


                  .

                  > Read this thru slowly and try to comprehend the amount of force produced for
                  > just under 4 seconds!
                  >
                  > There are no rockets or airplanes built by any government in the world that
                  > can accelerate from a standing start as fast as a Top Fuel Dragster!
                  >
                  >
                  >
                  >
                  > THE DEFINITION OF ACCELERATION
                  >
                  >
                  >
                  > One top fuel dragster 500 cubic inch Hemi engine makes more horsepower than
                  > the first 4 rows of stock cars at the Daytona 500.
                  >
                  > It takes just 15/100ths of a second for all 6,000+ horsepower of an NHRA Top
                  > Fuel dragster engine to reach the rear wheels.
                  >
                  > Under full throttle, a dragster engine consumes 1-1/2 gallons of nitro
                  > methane per second; a fully loaded 747 consumes jet fuel at the same rate
                  > with 25% less energy being produced.
                  >
                  > A stock Dodge Hemi V8 engine cannot produce enough power to drive the
                  > dragster's supercharger.
                  >
                  > With 3,000 CFM of air being rammed in by the supercharger on overdrive, the
                  > fuel mixture is compressed into a near-solid form before ignition. Cylinders
                  > run on the verge of hydraulic lock at full throttle.
                  >
                  > At the stoichiometric (stoichiometry: methodology and technology by which
                  > quantities of reactants and products in chemical reactions are determined)
                  > 1.7:1 air/fuel mixture of nitro methane, the flame front temperature
                  > measures 7,050 deg F.
                  >
                  > Nitro methane burns yellow... The spectacular white flame seen above the
                  > stacks at night is raw burning hydrogen, dissociated from atmospheric water
                  > vapor by the searing exhaust gases.
                  >
                  > Dual magnetos supply 44 amps to each spark plug. This is the output of an
                  > arc welder in each cylinder.
                  >
                  > Spark plug electrodes are totally consumed during a pass. After halfway, the
                  > engine is dieseling from compression, plus the glow of exhaust valves at
                  > 1,400 deg F. The engine can only be shut down by cutting the fuel flow.
                  >
                  > If spark momentarily fails early in the run, unburned nitro builds up in the
                  > affected cylinders and then explodes with sufficient force to blow cylinder
                  > heads off the block in pieces or split the block in half.
                  >
                  > In order to exceed 300 mph in 4. 5 seconds, dragsters must accelerate an
                  > average of over 4G's. In order to reach 200 mph (well before half-track),
                  > the launch acceleration approaches 8G's.
                  > Dragsters reach over 300 miles per hour before you have completed reading
                  > this sentence.
                  >
                  > Top fuel engines turn approximately 540 revolutions from light to light!
                  > Including the burnout, the engine must only survive 900 revolutions under
                  > load.
                  >
                  > The redline is actually quite high at 9,500 rpm.
                  >
                  > Assuming all the equipment is paid off, the crew worked for free, and for
                  > once NOTHING BLOWS UP, each run costs an estimated $1,000.00 per second.
                  >
                  > The current top fuel dragster elapsed time record is 4.428 seconds for the
                  > quarter mile (11/12/06, Tony Schumacher, at Pomona , CA ). The top speed
                  > record is 336.15 mph as measured over the last 66' of the run (05/25/05 Tony
                  > Schumacher, at Hebron , OH ).
                  >
                  > Putting all of this into perspective:
                  >
                  > You are driving the average $140,000 Lingenfelter 'twin-turbo' powered
                  > Corvette Z06. Over a mile up the road, a top fuel dragster is staged and
                  > ready to launch down a quarter mile strip as you pass. You have the
                  > advantage of a flying start. You run the 'Vette hard up through the gears
                  > and blast across the starting line and pass the dragster at an honest 200
                  > mph. The 'tree' goes green for both of you at that moment.
                  >
                  > The dragster launches and starts after you. You keep your foot down hard,
                  > but you hear an incredibly brutal whine that sears your eardrums and within
                  > 3 seconds, the dragster catches and passes you. He beats you to the finish
                  > line, a quarter mile away from where you just passed him.
                  >
                  > Think about it, from a standing start, the dragster had spotted you 200 mph
                  > and not only caught, but nearly blasted you off the road when he passed you
                  > within a mere 1,320 foot long race course.
                  >
                  > ...... and that my friend, is ACCELERATION!





                  I always thought of Paul Stapp, when thinking of changes in speed.

                  Comment

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