Today's Message Index:
----------------------
1. 06:24 PM - Acceleration (Aucountry@aol.com)
2. 06:25 PM - AA5x stats (Aucountry@aol.com)
3. 06:32 PM - Re: Acceleration (Steven Jackson)
4. 11:15 PM - Soliciting contributions (Aucountry@aol.com)
5. 11:19 PM - Re: Soliciting contributions (Cory Emberson)
Message 1
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--> TeamGrumman-List message posted by: Aucountry@aol.com
First, some useful info:
One Top Fuel dragster with a 500 cubic inch Hemi engine, makes more
horsepower than the first 4 rows at the Daytona 500. (on the order of 4000+
horsepower)
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 supercharger on the dragster. 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 1.7:1 air/fuel mixture
for
nitro methane the flame front temperature measures 7050 degrees 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 1/2 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=20force
to blow cylinder heads off the block in pieces or split the block in half. =20
In order to exceed 300 mph in 4.5 seconds dragsters must accelerate at 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 red-line is actually
quite high at 9500 rpm.
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 US $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). Note: When I was a kid of 12, I read about Connie Kalitta, Doug=E2=80=99s
father, being the first to break the 6 second barrier.)
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.
Message 2
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--> TeamGrumman-List message posted by: Aucountry@aol.com
Here is the info I have for the AA5B taken off an old American Av 1974
dwg.(accuracy ?):
Main wing NACA 64,415 (modified)
Area (inc fus.) 140.12 sqft
Flap Area 12.14 sqft deflection +0deg, -45deg
Aileron Area (inc tabs) 11.82 sqft
wing incidence 3.5 deg
wing dihederal 5 deg
wing twist angle 0deg
wing taper ratio 1
aspect ratio 7.1
Horizontal Tail
airfoil NACA 66,-012
Stabilizer area 17 sqft
Elevator Area(inc tabs) 15.41 sqft
Tab area 3.02 sqft
Horiz. tail incidence 0 deg
Horiz. tail dihedral 0 deg
Horiz tail twist 0 deg
Horiz Tail taper ratio 1
Elevator Travel 23deg up 17deg down
Tab travel 14deg up 30deg down
Vertical Tail
Airfoil NACA 65,-012 (modified)
Vert fin area 7.02 sqft
Rudder Area 4.8 sqft (inc tab)
Vert tail offset angle 0deg
Vert Tail sweep angle 13deg 40 min 17 sec (@ 25% cord line)
Vert tail taper ratio .45
Rudder travel +/- 25deg
Total aircraft length=264" width= 378.42" vert @tail = 91" with beacon
Message 3
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--> TeamGrumman-List message posted by: "Steven Jackson" <steven.jackson14@adelphia.net>
Now, if only I could figure out a way to get it under the cowl...
Message 4
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| Subject: | Soliciting contributions |
--> TeamGrumman-List message posted by: Aucountry@aol.com
I was going through my mail today and guess what. Both the EAA and AOPA
were soliciting contributions. As I was throwing them away, I thought of the
brouhaha that began when Matt sent out a solicitation to help fund the bulletin
board lists he maintains.
I also receive, as do most of you, requests for money from the Republican
National Committee (anyone know if the Dems ask for money too?), the IRS, the
University from which I graduated, ASME, AIAA, Red Cross, Salvation Army, and,
hell the list goes on. I used to get requests from US English but they quit
asking for money; not sure why. Maybe they gave up trying to make Enginsh the
official language of the US. Anyway.
So, Ron, do you boycott all organizations that ask you for donations?
Just wondering.
Gary
Message 5
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| Subject: | Re: Soliciting contributions |
--> TeamGrumman-List message posted by: "Cory Emberson" <bootless@earthlink.net>
Hi Gary,
I know for a fact that the DNC aggressively solicits donations ... no way
they'd be left out of the loop.
I was not aware that the letters from the IRS were only requests... :-)
And if I only had an old car to donate to every organization that advertised
for them ... the IRS would owe me a LOT of money! <g>
best,
Cory
----- Original Message -----
From: <Aucountry@aol.com>
Subject: TeamGrumman-List: Soliciting contributions
> --> TeamGrumman-List message posted by: Aucountry@aol.com
>
> I was going through my mail today and guess what. Both the EAA and AOPA
> were soliciting contributions. As I was throwing them away, I thought of
the
> brouhaha that began when Matt sent out a solicitation to help fund the
bulletin
> board lists he maintains.
>
> I also receive, as do most of you, requests for money from the Republican
> National Committee (anyone know if the Dems ask for money too?), the IRS,
the
> University from which I graduated, ASME, AIAA, Red Cross, Salvation Army,
and,
> hell the list goes on. I used to get requests from US English but they
quit
> asking for money; not sure why. Maybe they gave up trying to make
Enginsh the
> official language of the US. Anyway.
>
> So, Ron, do you boycott all organizations that ask you for donations?
>
> Just wondering.
>
> Gary
>
>
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