Page 47 - @ccess 2 Reader´s Book

What Can Helicopters Be Used For? load (v.):
cargar
Helicopters can be used for many things. They can
be used as flying ambulances to carry patients. They
can be loaded with water to fight large fires.

Military forces use helicopters to move troops or to
get supplies to ships. They can be used to transport
large objects from place to place. They can rescue
people in hard-to-reach places like mountains or in
rough seas.

Television and radio stations use helicopters to
fly over cities and report on traffic. They are used
by police and by people on vacation.

These are just some of the many things that can be
done with helicopters.

What Does NASA Do with Helicopters?

NASA conducts research on ways to
make helicopters better. Crash tests help make
helicopters safer. NASA studies how new materials
can keep passengers safe if a helicopter crashes.

Wind tunnel tests determine how to make
helicopters quieter and more fuel-efficient. New
ideas could help engineers create bigger, better
and faster helicopters. Someday helicopters might
carry 100 people on trips of 300 miles or more.
NASA has even studied how helicopters could be
flown on Mars!

46 Reader's Book