[SECC] Fwd: acceleration

[Ebarr19@aol.com]

--part1_87.6dfd10.2cfdfd37_boundary
Content-Type: text/plain; charset="US-ASCII"
Content-Transfer-Encoding: 7bit

 

--part1_87.6dfd10.2cfdfd37_boundary
Content-Type: message/rfc822
Content-Disposition: inline

Return-path: <Laptop6904@aol.com>
From: Laptop6904@aol.com
Full-name: Laptop6904
Message-ID: <fb.4b3b5562.2cfd7716@aol.com>
Date: Tue, 2 Dec 2003 00:03:18 EST
Subject: acceleration
To: ItsBrum@aol.com
MIME-Version: 1.0
Content-Type: text/plain; charset="US-ASCII"
Content-Transfer-Encoding: 7bit
X-Mailer: AOL 5.0 for Mac sub 46

> 

>The definition of acceleration. 

> 

>One Top Fuel dragster 500 cubic inch Hemi engine makes more 

>horsepower than the first 4 rows at the Daytona 500. 

> 

>Under full throttle, a dragster engine consumes 1-1/2 gallons 

>of nitromethane 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 supercharger. 

> 

>With 3000 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 for nitromethane the flame front temperature 

>measures 7050 degrees F. 

> 

>Nitromethane 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   

>way, the engine is dieseling from compression plus the glow of 

>exhaust valves at 1400 degrees 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 9500rpm. 

> 

>The Bottom Line; 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 4.441 seconds for the 

>quarter mile (10/05/03, Tony Schumacher). The top speed record is 333.00 

>mph. (533 km/h) as measured over the last 66' of the run (09/28/03 Doug 

>Kalitta). 

> 

>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 past 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 1320 foot long race course. 

> 

>That folks, is acceleration!!! 

> 


--part1_87.6dfd10.2cfdfd37_boundary--