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Chapter 4
z Communication support: voice and data communications retransmission (RETRANS)
z Movement support: convoy security, mine/IED detection
4-7. Even UAS with degraded mission packages can disrupt enemy operations. Enemy concerns about
UAS activity cause frequent movement and tend to generate increased communications between
organizations that provide SIGINT data. Frequent movement disrupts the enemy force’s ability to conduct
coordinated operations, strains its logistics system, and degrades personnel’s physical and mental
endurance.
4-8. Depending on the type of UA and its altitude, the UA can also alert the enemy to the presence of
friendly forces when conducting reconnaissance, surveillance, and security missions.
4-9. UAS may perform multiple roles during their long missions. The supported commander determines
the mission statement, which may include many of the above roles in the mission statement, and specifies
“be-prepared” contingency roles so the correct payload is onboard. Some sensor packages are compatible
with multiple roles. Multiple sensors may exist on the same UA.
SECTION II–EMPLOYMENT CONSIDERATIONS
4-10. The importance of the mission drives the abort criteria. While some operations may depend on the
success of a UAS mission, other operations may be augmented with additional assets that can fill the void
if the UAS is unable to complete its mission. Personnel derive mission abort criteria from the commander’s
intent and the implied importance of the mission. Terminating less critical UAS support missions sooner
than ground missions requiring critical UAS support may be considered. The ground commander must
decide the level of criticality placed on the support requested from organic or supporting UAS assets.
4-11. Planning considerations for employing UAS are similar to those of ground units and are nearly
identical to those of manned aviation assets. The primary difference between employing ground units and
employing Army UAS is the UAS’s ability to exploit the third dimension. With this capability comes a
responsibility for maintaining separation between Army UAS and other systems, both manned and
unmanned, competing to use the same airspace.
4-12. Planning considerations are METT-TC dependent. Some elements are specific to the mission and
discussed in the appropriate section of this manual. This section addresses planning considerations
common to the employment of most Army UAVSs.
LOCATION OF UNMANNED AIRCRAFT SYSTEMS
4-13. UAS support combat operations anywhere on the battlefield to include forward of the forward line of
own troops (FLOT). They provide imagery day and night, when equipped with the proper sensors. UAS
are an excellent imagery asset providing the commander with NRT reconnaissance and battlefield
surveillance without the possibility of risk to a manned UA. They give commanders a dedicated and
rapidly taskable asset that can look wide as well as deep. During a preplanned UAS mission, changes in
mission priorities or identification of new targets may occur. The commander can then redirect an UA to
support a different mission or observe another area in real time.
4-14. UAS units can launch UA from either improved or unimproved airstrips. Small UAS, such as Raven,
are hand launched. Locating a GCS with the supported unit generally improves coordination because the
UAS section has immediate access to AD status, threat graphics, and weather data. Use of all-source
analysis system–light, aviation mission planning system/portable flight planning system (PFPS), and blue
force tracking (BFT) can further expedite coordination. UAS elements can operate in single or split-site
configurations.
4-2 FMI 3-04.155 4 April 2006