IEEE Spectrum April, 2011 - 23
A cAr thAt's
FAster thAn
A speeding
BuLLet
British pilot Andy
green has already
gone faster on the
ground than most
things go in the air.
Now he's aiming for
1000 mph by 2012
rOAd ShArK: the Bloodhound
SSc show car lies in wait at
its home on the waterfront in
Bristol, England.
I
n 1997, British Royal Air
Force fighter pilot Andy
Green broke the world land‑
speed record at 763 miles
per hour (1228 kilometers
per hour)-literally faster
than some bullets. Now he's
gunning for a new record
in 2012-driving 1000 mph
(1609 km/h) in the new
Bloodhound supersonic car.
Getting there is tricky.
A 30 percent increase in
speed takes a lot more than
30 percent more power or
strength. Loads and stresses
increase by the square of the
speed-power by the cube,
says Green. So the main
challenges were building
a craft that could maintain
control and stability at
supersonic speeds, and
engines that could produce
enough thrust while keeping
weight and air resistance
down. There's a jet engine to
accelerate the Bloodhound
to 350 mph (563 km/h),
and a rocket to boost it to
1050 mph (1690 km/h). The
US $15 million project, led
by British entrepreneur
Richard Noble and funded
by more than 300 sponsors,
uses a computer at Swansea
University, in Wales, with
128 parallel processors
spectrum.ieee.org
photos: Flow Images
to analyze 100 million
concurrent data points
involving fluid dynamics
and aerodynamics, and
another three processors
to monitor engine
systems and controls.
"We're doing things
jet fighters can't do," says
Green, who graduated from
the University of Oxford
in 1983 with a bachelor's
in mathematics and has
been on active Royal Air
Force duty ever since. "For
example, the wheels have to
handle 50 000 g's and 10 300
revolutions per minute."
The Paris‑based Fédé‑
ration Internationale de
l'Automobile, official keeper of
the world land‑speed record,
allows competitors-like the
joint U.S./Canadian North
American Eagle Project and
Australia's Aussie Invader-
to discuss their approaches
with each other. (Another
competitor, the Fossett LSR,
is on hold. Its former sponsor,
the American adventurer
Steve Fossett, disappeared
and presumably died in a
plane crash in 2007.) "The
only rules are that the
vehicles have four wheels
and be controlled by a driver,"
says Green. "Our vehicles are
remarkably different, so we
can share information with
the competition." (Among
the many differences, the
Eagle is jet powered only, the
Bloodhound has both a jet
and a hybrid rocket engine,
and the Invader uses a single
liquid‑fueled rocket motor.
While the Bloodhound
project accelerates toward a
2012 summer test of 800 mph
(1287 km/h), it also serves as
an educational program that
uses the physics, engineering,
and environmental problems
it encounters to teach math,
science, and technology and
inspire a new generation of
scientists and engineers. The
project is being followed by
4000 schools and colleges in
the United Kingdom and in
202 other countries worldwide.
"The world is short of
engineers," says Green.
One goal of the project is to
inspire a new generation of
engineers. "Kids nowadays
want to make money or be
on reality television," he
says. "How do you ignite
interest at school level? This
is what Bloodhound is trying
to achieve." -Susan Karlin
April 2011 * iEEE SpEctrum * NA
23
http://spectrum.ieee.org
Table of Contents for the Digital Edition of IEEE Spectrum April, 2011
IEEE Spectrum April, 2011 - Cover1
IEEE Spectrum April, 2011 - Cover2
IEEE Spectrum April, 2011 - 1
IEEE Spectrum April, 2011 - 2
IEEE Spectrum April, 2011 - 3
IEEE Spectrum April, 2011 - 4
IEEE Spectrum April, 2011 - 5
IEEE Spectrum April, 2011 - 6
IEEE Spectrum April, 2011 - 7
IEEE Spectrum April, 2011 - 8
IEEE Spectrum April, 2011 - 9
IEEE Spectrum April, 2011 - 10
IEEE Spectrum April, 2011 - 11
IEEE Spectrum April, 2011 - 12
IEEE Spectrum April, 2011 - 13
IEEE Spectrum April, 2011 - 14
IEEE Spectrum April, 2011 - 15
IEEE Spectrum April, 2011 - 16
IEEE Spectrum April, 2011 - 17
IEEE Spectrum April, 2011 - 18
IEEE Spectrum April, 2011 - 19
IEEE Spectrum April, 2011 - 20
IEEE Spectrum April, 2011 - 21
IEEE Spectrum April, 2011 - 22
IEEE Spectrum April, 2011 - 23
IEEE Spectrum April, 2011 - 24
IEEE Spectrum April, 2011 - 25
IEEE Spectrum April, 2011 - 26
IEEE Spectrum April, 2011 - 27
IEEE Spectrum April, 2011 - 28
IEEE Spectrum April, 2011 - 29
IEEE Spectrum April, 2011 - 30
IEEE Spectrum April, 2011 - 31
IEEE Spectrum April, 2011 - 32
IEEE Spectrum April, 2011 - 33
IEEE Spectrum April, 2011 - 34
IEEE Spectrum April, 2011 - 35
IEEE Spectrum April, 2011 - 36
IEEE Spectrum April, 2011 - 37
IEEE Spectrum April, 2011 - 38
IEEE Spectrum April, 2011 - 39
IEEE Spectrum April, 2011 - 40
IEEE Spectrum April, 2011 - 41
IEEE Spectrum April, 2011 - 42
IEEE Spectrum April, 2011 - 43
IEEE Spectrum April, 2011 - 44
IEEE Spectrum April, 2011 - 45
IEEE Spectrum April, 2011 - 46
IEEE Spectrum April, 2011 - 47
IEEE Spectrum April, 2011 - 48
IEEE Spectrum April, 2011 - 49
IEEE Spectrum April, 2011 - 50
IEEE Spectrum April, 2011 - 51
IEEE Spectrum April, 2011 - 52
IEEE Spectrum April, 2011 - 53
IEEE Spectrum April, 2011 - 54
IEEE Spectrum April, 2011 - 55
IEEE Spectrum April, 2011 - 56
IEEE Spectrum April, 2011 - 57
IEEE Spectrum April, 2011 - 58
IEEE Spectrum April, 2011 - 59
IEEE Spectrum April, 2011 - 60
IEEE Spectrum April, 2011 - 61
IEEE Spectrum April, 2011 - 62
IEEE Spectrum April, 2011 - 63
IEEE Spectrum April, 2011 - 64
IEEE Spectrum April, 2011 - Cover3
IEEE Spectrum April, 2011 - Cover4
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_1217
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_1117
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_1017
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0917
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0817
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0717
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0617
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0517
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0417
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0317
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0217
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0117
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_1216
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_1116
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_1016
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0916
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0816
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0716
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0616
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0516
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0416
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0316
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0216
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0116
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_1215
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_1115
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_1015
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0915
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0815
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0715
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0615
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0515
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0415
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0315
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0215
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0115
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_1214
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_1114
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_1014
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0914
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0814
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0714
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0614
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0514
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0414
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0314
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0214
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0114
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_1213
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_1113
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_1013
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0913
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0813
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0713
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0613
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0513
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0413
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0313
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0213
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0113
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_1212
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_1112
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_1012
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0912
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0812
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0712
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0612
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0512
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0412
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0312
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0212
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0112
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_1211
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_1111
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_1011
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0911
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0811
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0711
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0611
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0511
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0411
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0311
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0211
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0111
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_1210
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_1110
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_1010
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0910
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0810
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0710
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0610
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0510
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0410
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0310
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0210
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0110
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_1209
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_1109
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_1009
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0909
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0809
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0709
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0609
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0509
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0409
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0309
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0209
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0109
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_1208
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_1108
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_1008
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0908
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0808
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0708
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0608
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0508
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0408
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0308
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0208
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0108
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_1207
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_1107
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_1007
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0907
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0807
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0707
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0607
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0507
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0407
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0307
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0207
https://www.nxtbook.com/nxtbooks/ieee/spectrum_na_0107
https://www.nxtbookmedia.com