Flight
The Frisbee is used today for a multitude of different
activities, ranging from ultimate to disc golf to fetch with a
dog. Different
types of discs are used for these various activities. An
ultimate disc is a light disc that is large in diameter and
has a large rim. This
kind of disc can be thrown very accurately, but not as fast as
a disc golf disc. (ultimate disc shown below)
http://www.discraft.com/downloads/discs/us_white_md.jpg
Within disc golf there are drivers, mid-range, and putting
discs, all specifically designed for their task. A driver is
made of a hard
plastic that flies with more stability the harder it is
thrown. These discs are heavy with most of their weight
distributed toward the
rim for increased moment of inertia. They can go very far and
very fast. The mid-range is, as it sounds, for throws that
aren't very far.
This disc is easier to control and flies straighter than a
driver, but flies slower. The putter is shaped more like an
ultimate disc, but it
is much smaller. This disc is easy to control. It flies
straight and level at a slow speed for the putting shots. It
can be made of a softer
plastic than that of the driver. (Disc golf discs shown below-
going bottom to top- driver, mid-range, putter)
http://selfhatinghipster.files.wordpress.com/2011/10/discs.jpg
A dog specific disc is usually made of soft
plastic or even cloth to prevent injury to the dog. (cloth
disc - right) These discs
also don't fly as fast so the dogs can catch them.
ttp://media.oregonlive.com/runoregon/photo/bear-running-dog-frisbeejpg-8c0bfaf134372a8c_large.jpg