Turning a corner...
The Batmobile has a grappling hook that Batman can deploy to allow him to speed round corners at speeds far exceeding normal cornering.
The force needed to turn a corner can
be easily calculated.
The force the tyres can produce can
also be calculated.Working with an
inner city corner with a radius of
about 10 m, an average family car
(1200 kg) could corner at a maximum
speed of about 50 mph with a force of 9,600 N.
On the extreme end a F1 car (650 kg) could corner at 73 mph with a force of 10,400 N. This is because the extra down force created by the F1 car adds to the grip of the car.
So to be better than both of these the bat mobile (2000 kg as
anestimate given the weapons etc.) uses a grappling hook.
If batman were to take the corner
at 100 mph thenit would take a
force of 60,274 N. The tyres would provide 16,000 N of this leaving
44,244 N for the grapple cable. To providethis force a steel cable would need a diameter of about 9 cm,
which is not impossible, just bulky.
Bat Gadget...
At times when Batman needs to disappear he resorts to a sonic device that attracts a cloud of bats.Bats use ultrasound to find food and communicate.
Ultrasounds are longitudinal waves like sound waves that are at a higher frequency than humans can hear.
-
Human hearing range is about 20 – 20,000 Hz.
-
Bats hearing range is about 1000 – 150000 Hz
There are ultrasound devices on the market for repelling bats, most of these have been found not to work, however it has been shown the bats can be attracted by sound. Bats can also be attracted to electronic mosquito repellers that mimic the sound of dragonflies. This is because dragonflies are a good food source for bats. So if Batman was near a colony of bats he could use a sonic device to attract them, but it would need to be at dusk or dawn as this is when bats are most active.