As with most things, there are good reasons for the various techniques used in different environments. In the case of the Naval 180 degree turn to final, you must understand the environment the pilots are in.

They are landing on a boat in the middle of the ocean. There are no external references other than the boat. The boat is intentionally headed directly into the wind.

It is important to keep the only visual reference - the boat - in view as you fly the 'pattern.'

Thus the 180 degree turn method.

When landing in farmer Jones farm field, you will have lots of visual clues to use. To make the best use of these clues a disciplined rectangular flight path is an extremely effective method.

For those of you who are unfamiliar with the TLAR landing technique, and are motivated to fly safe, please read the latest edition of the "Glider Flight Training Manual." Available from the SSA or www.eglider.org

Tom Knauff