Re: LOL of the day
- From: FL Turbo <noemail@xxxxxxxxxx>
- Date: Thu, 19 Feb 2009 17:11:32 -0600
On Thu, 19 Feb 2009 07:14:19 -0800, "John_Brian_K"
<a7ecb57@xxxxxxxxxxxxxxx> wrote:
So you like mocking the mentally ill. What kind of low-life are you?
Shut up retard.
LOL
==========================================
You must not think me necessarily foolish because I am facetious,
nor will I consider you necessarily wise because you are grave.
==============================
Now, first of all, don't get me wrong here.
I am not trying to hijack this thread.
(That would be wrong, and I would never do that.)
I ran across an interesting site while looking for something else.
I thought that someone like you in the Motor City would find this site
interesting.
Take a look at this one.
http://www.sandersaircraft.com/aircraft/dreadnought/One_Second_with_Dreadnought.pdf
August 28, 2006 Story by Tom Fey
Photos by W J Pearce
At a race weight of 6.25 tons, the trick Pratt & Whitney R-4360-63
powered T.20 Sea Fury ?Dreadnought? is truly the big kid on the air
racing block.
Built, owned, and flown by the late Frank and sons Brian and Dennis
Sanders, this two-seat masterpiece has turned the pylons as fast as
458.9 mph by virtue of the clean, highly detailed airframe and the
3,800 horses that tread within her custom cowling.
Dreadnought has won the National Championship Reno Air Races twice,
and finished second 13 times.
To simply call this airplane large and fast, while certainly accurate,
diminishes the fantastic complexity required to attain such impressive
performance.
If you could examine a single second of time while Dreadnought is hard
at work, engine at 3000 rpm and 72 inches of manifold pressure, just
70 feet off the deck at 450 mph on the Reno course, what would you
find?
In that one second, the thundering, 4,290 lb R-4360 radial has gone
through 50 revolutions, with each of the 28 finely-finned cylinders
firing 25 times.
Inside each cylinder of 156 cubic inch (2.6L) displacement (same as
the entire V-6 powerplant in a C class Mercedes-Benz) a piston the
diameter of a coffee saucer has transmitted close to140 horsepower to
the master rod.
Seven cylinders are linked to each master rod, with each of the four
master rods adding their own 900+ horsepower to the crankshaft. Seven
hundred power pulses, one pulse for each 9.5° of propeller arc, have
been transmitted to the six foot long, one-piece, four throw steel
crank.
Each piston has traveled 50 feet in linear distance, changing
direction 100 times per second, with the total linear travel of all 28
pistons adding up to a ¼ mile.
Each sodium-filled exhaust valve the diameter of a beer can (2.5
inches) has required 2.1 tons of initial force to open the port to
expel the 1600° F gasses into the 14 exhaust stacks specifically
choked to maximize jet thrust from the exhaust.
The single-stage supercharger rotor, 14 inches in diameter, has spun
348 times, delivering 98 cubic feet of air at 72 inches of manifold
pressure, equivalent to 21 psi above ambient pressure.
Seven intake trunks, 2.75 inches in diameter, undulate forward from
the supercharger housing to supply the compressed mixture to the
intake valves perched atop the forged aluminum heads. The pressure
within each cylinder will approach 235 psi before the four, low
tension magnetos on the nose case supply the 1400 sparks per second,
20,000+ volts per spark, to the 56 individual spark plugs that fire
off the charge.
In that one second, almost 14 fluid ounces of 115/145 performance
number aviation gasoline have been injected into the gaping Bendix
PR-100 carburetor with an intake throat the size of a tool box. Five
fluid ounces of anti-detonant water/methanol mixture have been
force-fed into the intake system to assure the supercharged mixture,
heated by compression, does not exceed 194°F, thereby moderating the
charge to burn at the proper rate and at a sub-solar temperature.
More than 12,408 BTU?s of heat energy (3.1 million calories) have been
released into the engine, enough to raise the temperature of a 55
gallon drum of water 27° F. Approximately 8.6 fluid ounces of water
has been sprayed at 35 psi from 14 nozzles placed in the narrow, 3.75
inch gap of the cowling inlet to atomize the fluid and dissipate heat
directly from the otherwise air-cooled cylinders.
In that thousand milliseconds, approximately 60 lbs of cooling air
have entered through the three square feet of inlet area (area of a
pizza box), its temperature raised 45° F by ram pressure alone, then
cleverly guided by a tapered spinner afterbody, shrouds, hoods, and
baffles to flow across the four rows of seven cylinders, expand across
the engine, absorb heat, and exit the cowling exhaust chute.
In that one second, tucked inside the forged aluminum R-4360 nose
case, 10 hefty steel planet gears, an inch thick with 23 teeth each,
caged in the propeller reduction unit, have spun on their own plain
bearings 50 times and orbited inside the ring gear close to 19 times
to slow the speed of the propeller relative to the engine. The 13.5
foot diameter, four-bladed Aeroproducts propeller and regulator, some
528 pounds altogether, have made 18.75 revolutions, the tips arcing
through 795 feet of linear distance and subjected to 2700 times the
force of gravity.
Each furnace-brazed, hollow steel propeller blade has a chord (width)
of 15 inches and sports a custom contour at the outer trailing edge to
reduce tip load vibration as it strains to efficiently convert 900
horsepower into thrust, speed, and victory.
In that one second, the 2 pressure oil pumps have sent 148 fluid
ounces, almost 1.2 gallons, of 60 weight, W120 aviation oil at 90 psi
through the engine to lubricate and cool the reciprocating symphony,
while seven scavenge pumps have collected the oil, circulated it
through the dual oil coolers, and back to 30 gallon oil tank. A lonely
tablespoon of oil has escaped past the piston rings, burned, and been
blown overboard. Approximately 4.3 fluid ounces of spray bar water
have been ejected from 56 ports at 15 psi.; 14 pairs of diametrically
opposed ports for each of the two oil coolers, one cooler tucked into
each wing root. The spray bar water is directed onto metal tabs welded
to the stainless steel spray bar tubing, fracturing the stream and
turbulating the mist, essential for removing 270 BTUs of heat per
second from the oil.
In that one second, over 1.72 million, yes million, foot/lbs of work
have been done, enough to raise a 150 lb. man 2.2 miles into the air
or lift a 60 ton Abrams battle tank through a football goal post.
The mighty aircraft has covered 660 feet, roughly 1.5% of the current
8.48 mile Reno Unlimited course. Each second approximately 2 lbs of
fluids are consumed and ejected, reducing the racer?s 45 lbs per
square foot takeoff wing loading by 10% at touch down.
In that single second, coming off Pylon 6, g force easing, wings
almost level, the pilot begins a quick scan of the 9, 2.5 inch
diameter analog gauges essential for racing (induction temperature,
cylinder head temperature, oil temperature, oil pressure, torque
pressure, oil temperature, oil pressure, cylinder head temperature,
anti-detonant injection pressure, cylinder cooling spray pressure,
fuel flow, oil cooler spray bar pressure, spray bar pressure, oil
cooler door position indicator) aligned across the top 2 rows of the
panel.
The wide eyed but extremely focused pilot, Brian or Dennis Sanders,
dodging dust devils, scanning the sky for aircraft and the ground for
their shadows, is reassured to find all is well within the thundering
juggernaut as it rat races over the mile high desert outside Reno,
Nevada.
In just one second of the 535 seconds it takes to complete the 66.9
mile race, man and machine, wind and air, water and oil, speed and
gravity, combine to make air racing the most elite motorsport of all.
Despite engines and airframes that haven?t been manufactured since
1960, Unlimited-class air racing remains the World?s Fastest Motor
Sport, and an experience of sight and sound unique in all of racing.
Long live the big iron.
My thanks to Brian Sanders, Graham White, Pete Law, Bill Pearce, and
Hewlett-Packard for their expert and most welcome assistance.
------------------------------------------------------------------------
------------------------------
Hah!
Prissy Prius petters would piss their pants riding in that plane.
.
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