Q.
No, really, how fast does the JetKart go?
A.
The Allied Signal JFS-100 13A gas turbine engine generates
105 pounds of thrust. The JetKart will continue to accelerate
until wind resistance equals 105 pounds. But before
we take it over 122 mph, we want to add front and rear
spoilers. Flying the JetKart may be fun, but landing
it may prove to be difficult.
Q.
How do you “clock the speed” of the JetKart?
A. A Global Positioning System, (GPS) attached to the
JetKart is used to measure the distance traveled and
time elapsed and thus, the speed.
Q.
Why does the JetKart belch plumes of smoke?
A. The JetKart’s Allied Signal JFS-100-13A turbine
engine burns Jet A fuel cleanly and efficiently. There
is little, if any smoke associated with running the
engine with the exception of shutdown. The smoke spectators
see during a JetKart run is produced using the same
system airplanes use at air shows. The smoke is generated
for effect and to help bystanders follow the JetKart’s
progress. It is generated using an oil called Corvis,
a paraffin-based product made for this purpose.
Q. Is there any danger of getting sucked into
the intake or injured by the exhaust?
A. The intake is covered by a mesh screen to prevent
objects from being sucked in.
The exhaust is very hot and dangerous. People must keep
back a minimum of 40 feet from the exhaust plume. The
exhaust gas temperature is dangerously hot--1450 degrees
F!
Q.
How do you start the JetKart?
A. The JetKart requires a 24 volt power source for starting.
We use two 12 volt batteries wired in parallel to create
24 volts. These batteries and a cable with a quick-attach
system are part of our starter cart.
Q. What does the JetKart burn?
A. The JetKart runs on Jet A fuel, which is
available at airports.
Q.
How do you stop the JetKart?
A.
The JetKart has front and rear disk brakes.
Q.
Does the JetKart have an afterburner?
A.
At this time, the JetKart does not have an afterburner.
Future plans may include the additon of one if finances
allow.
Q.
Does the JetKart snap your neck when you drive it?
A.
The acceleration is smooth and gradual, much like other
thrust-driven vehicles like jet airplanes.
Q. Who is allowed to drive the JetKart?
A. Normally, JetKart drivers must be experienced professionals.
But under certain circumstances at some exhibitions,
qualified guests are permitted to drive the JetKart
at reduced speeds. A waiver and parental consent form
is required.
Q.
When was the JetKart made?
A. It was made in 2002, in Birmingham, Alabama.
Q.
Who made it?
A. Jim Griffin and his 15-year-old son, Justin.
Q. How can I get a picture of the JetKart?
A. Click
here to download a picture.
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