[Vision2020] "Acceleration" Defined
Area Man (Dan C)
areaman at moscow.com
Thu Jan 12 08:46:31 PST 2006
Sunil,
You are thinking about Cyberdyne, which was taken over by Skynet after
it became self-aware and began manufacturing said Terminators.
Sometimes mistaken for Yoyodyne Propulsion Systems, which was
responsible for the construction of Buckaroo Banzai's Oscillation
Overthruster.
Have a geektastic day,
DC
P.S. Dragsters are cooler than space shuttles. Mostly because you'll
never have an astronaut quite as colorful as John Force.
-----Original Message-----
From: vision2020-bounces at moscow.com
[mailto:vision2020-bounces at moscow.com] On Behalf Of Sunil Ramalingam
Sent: Thursday, January 12, 2006 5:09 AM
To: starbliss at gmail.com; thansen at moscow.com
Cc: vision2020 at moscow.com
Subject: Re: [Vision2020] "Acceleration" Defined
Ted,
Isn't Rocketdyne the outfit that manufactured the Terminators that
menaced
Los Angeles in the late 1980s and early 1990s?
Sunil
>From: Ted Moffett <starbliss at gmail.com>
>To: Tom Hansen <thansen at moscow.com>
>CC: Moscow Vision 2020 <vision2020 at moscow.com>
>Subject: Re: [Vision2020] "Acceleration" Defined
>Date: Thu, 12 Jan 2006 00:15:42 -0800
>
>Tom et. al.
>
>You seemed to miss the joke in my suggestion that the CBD could become
>a Trinitarian Village like "Chinatown" in some large US cities, but
>this is no
>joke:
>
>You want horsepower? Forget the dragster! How about engines in one
>"machine" with the output of 13 Hoover Dams?
>
>Try this:
>
>http://www.boeing.com/defense-space/space/propul/SSMEamaz.html
>
>Rocketdyne's Space Shuttle Main Engine operates at greater temperature
>extremes than any mechanical system in common use today. The liquid
>hydrogen fuel is -423 degrees Fahrenheit, the second coldest liquid on
>Earth. When the hydrogen is burned with liquid oxygen, the temperature
>in the engine's combustion chamber reaches +6000 degrees Fahrenheit -
>that's higher than the
>boiling point of Iron.
>
>
> - The maximum equivalent horsepower developed by the three SSMEs is
> just over 37 million horsepower.
> - The energy released by three of Rocketdyne's Space Shuttle Main
> engines is equivalent to the output of 13 Hoover Dams.
> - Although not much larger than an automobile engine, the SSME
> high-pressure fuel turbopump generates 100 horsepower for each
>pound of
>its
> weight, while an automobile engine generates about one-half
horsepower
>for
> each pound of its weight.
> - Even though Rocketdyne's SSME weighs one-seventh as much as a
> locomotive engine, its high-pressure fuel pump alone delivers as
much
> horsepower as 28 locomotives, while its high-pressure oxidizer pump
>delivers
> the equivalent horsepower for 11 more.
> - If water, instead of fuel, were pumped by the three Space Shuttle
> Main Engines, an average family-sized swimming pool could be
drained in
>25
> seconds.
> - The SSME high-pressure fuel turbopump main shaft rotates at
37,000
> rpm compared to about 3,000 rpm for an automobile operating at 60
mph.
> - The discharge pressure of an SSME high-pressure fuel turbopump
could
> send a column of liquid hydrogen 36 miles in the air
>
>------------------
>
>Ted Moffett
>
>
>On 1/10/06, Tom Hansen <thansen at moscow.com> wrote:
> >
> > "Acceleration" as defined by Keith Black
> > (http://www.keithblack.com)
> >
> >
> >
> >
> >
>-----------------------------------------------------------------------
>-----------------------------------------
> >
> >
> >
> > One top fuel dragster 500 cubic inch Hemi engine makes more
> > horsepower
> >
> > than the first 4 rows of stock cars at the Daytona 500.
> >
> >
> >
> > 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 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 3 00 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 estimate $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, picture this scenario:
> >
> > 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!
> >
> >
> >
> > Take care, Moscow.
> >
> >
> >
> > Tom Hansen
> >
> > Moscow, Idaho
> >
> >
> >
> > "Life should NOT be a journey to the grave with the intention of
>arriving
> > safely in an attractive and well preserved body, but rather to skid
> > in sideways, chocolate in one hand, a drink in the other, body
> > thoroughly
>used
> > up, totally worn out and screaming 'WOO HOO. What a ride!'"
> >
> >
> >
> > _____________________________________________________
> > List services made available by First Step Internet, serving the
> > communities of the Palouse since 1994.
> > http://www.fsr.net
> > mailto:Vision2020 at moscow.com
> > ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
> >
> >
> >
>_____________________________________________________
> List services made available by First Step Internet,
> serving the communities of the Palouse since 1994.
> http://www.fsr.net
> mailto:Vision2020 at moscow.com
>¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
_____________________________________________________
List services made available by First Step Internet,
serving the communities of the Palouse since 1994.
http://www.fsr.net
mailto:Vision2020 at moscow.com
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