text: Chapter 3
  Initial Contact
  3-56. The pilot radios transmissions at coordinated time and location. After establishing two-way
  communications, the controller can abbreviate call signs. With multiple flights, instructions issued by
  pathfinder GTA communications should identify the particular situation by including that station's call sign
  at the beginning of the transmission, for example--
  Pilot: ALPHA ONE LIMA ONE SIX (A1L16), THIS IS ROMEO TWO BRAVO
  TWO SEVEN (R2B27), OVER.
  Pathfinder: ROMEO TWO BRAVO TWO SEVEN, THIS IS ALPHA ONE LIMA ONE
  SIX, OVER.
  Pilot: THIS IS BRAVO TWO SEVEN, CCP INBOUND, OVER.
  Pathfinder: THIS IS LIMA ONE SIX, STATE TYPE, NUMBER, AND INTENTIONS,
  OVER.
  Pilot: THIS IS BRAVO TWO SEVEN, FOUR UNIFORM HOTEL SIXTIES
  (UH-60s), TROOP DROP-OFF AND SLINGLOAD, FOR YOUR SITE,
  OVER.
  Pathfinder: THIS IS LIMA ONE SIX, ROGER, HEADING THREE-TWO-FIVE (325),
  THREE THOUSAND (3,000) METERS. LAND THREE TWO FIVE,
  SIGNAL ON CALL, LAND ECHELON RIGHT, SLINGLOAD AIRCRAFT
  USE NUMBER FOUR LANDING POINT, CONTINUE APPROACH FOR
  VISUAL CONTACT, OVER.
  Air Traffic Control Information
  3-57. An example of what the air traffic controller might say follows:
  Example: HEADING THREE TWO FIVE, (distance) THREE THOUSAND
  METERS, OVER. LAND THREE TWO FIVE, OVER.
  Pertinent Information
  3-58. The air traffic controller also gives any other pertinent information, for example--
  Example: SIGNAL ON CALL (prepare to establish positive visual contact).
  FOUR UNIFORM HOTEL SIXTIES (UH-60s) IN ECHELON RIGHT
  (advises pilot of the size of landing site).
  SLINGLOAD POINT ON NUMBER FOUR TOUCHDOWN POINT
  (night only).
  FIELD ELEVATION, FOUR TWO FIVE FEET (actual field elevation).