ATP-3-09-30 Observed Fires Download
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Call For Fire 28 September 2017 ATP 3-09.30 4-11 Example The MTO is T, G, VT IN EFFECT, 4 ROUNDS, AA7732, OVER or alternatively THUNDER, APACHE, VT IN EFFECT, 4 ROUNDS, AA7732, OVER. ADDITIONAL INFORMATION 4-73. Transmit the additional information shown below separately or along with the MTO. PROBABLE ERROR IN RANGE 4-74. If probable error in range (PER) is 38 meters or greater during a normal mission, the FDC informs the observer. If PER is 25 meters or greater in a precision registration, the FDC informs the observer. ANGLE T 4-75. Angle T is sent to the observer when it is 500 mils or greater or when requested. PULSE REPETITION FREQUENCY CODE 4-76. A laser designator can emit laser pulses of different frequencies. The laser spotters on aircraft and some munitions can sense these frequencies. These frequencies are set as a three digit pulse repetition frequency code on the laser designator. For a laser designation mission to be successful, the observer and the weapon delivery system must use the same pulse repetition frequency code. 4-77. Pulse repetition frequency (also called PRF) codes are not entirely compatible across the spectrum of military laser equipment. Most Army designators and weapons use a three digit code, while the Air Force uses a four digit code. Upon receiving the three digit switch setting of the laser designator, a pilot converts it to the required four digits by inserting a one immediately before the three digits. TIME OF FLIGHT 4-78. Send time of flight to an observer during a moving target mission, during an aerial observer mission, during a high angle mission, and for shell HE in a coordinated illumination mission when using BY ROUND AT MY COMMAND, or when requested. CAS REQUEST 4-79. Introduction to 9-Line CAS Brief. JTACs, FAC (A) s, and JFO’s will use a standardized briefing to pass information rapidly. The 9-Line CAS brief, also known as the “9-Line Briefing,” is the standard for use with Fixed Wing and non-Army Rotary Wing aircraft. The CAS briefing form helps the aircrew to determine whether they have the information required to perform the mission. See figure 4-4 on page 4-14. (1) Line 1―Ingress Point (IP) or Battle Position (BP). The IP is the starting point for the run-in to the target. For rotary wing aircraft, the BP is where attacks on the target are commenced. (2) Line 2―Heading and Offset. The heading is given in degrees magnetic from the IP to the target or from the center of the BP to the target. The offset is the side of the IP to-target line on which aircrews can maneuver for the attack. (3) Line 3―Distance. The distance is given from the IP/BP to the target. (4) Line 4―Target Elevation. The target elevation is given in feet MSL unless otherwise specified. (5) Line 5―Target Description. The target description should be specific enough for the aircrew to recognize the target. (6) Line 6―Target Location. The JTAC, FAC (A), or JFO provides the target location.