Home' RTCA Documents for Review : C2 Link Systems MASPS_Draft Contents Appendix A
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in the type certification of the aircraft operating in the airspace. The UTM systems
integrator would also be subject to FAA safety oversight through a form of delegation that
would have to be established. Cost is also an issue for UTM systems integrators. High per
flight costs could invalidate the business case for use of UAS in the UTM airspace.
Communications Service Providers
These companies would provide connectivity between the CS and the UA. Their systems
could provide the communications connectivity between the CS and the RF link, routing
services, and the RF links (terrestrial and/or satellite-based). These stakeholders include
existing service providers (e.g., mobile phone carriers, satellite communications
companies, etc.) and service providers who may choose to build special purpose networks
and/or RF links to meet the needs for a C2 Link System.
The goal of a service provider is to provide portions of the connectivity between the CS
and the UA in a cost-effective and safe system that can be approved by the FAA as a part
of a UAS certification. They are expected to strive to create a solution that meets the
integrity, continuity, availability, and bandwidth requirements of a UAS using their service
and to do so in a cost-effective manner.
All service providers will be constrained by the standards (e.g. , RTCA MOPS) or other
FAA approved methods developed for their specific system and the additional
requirements derived during the UAS certification process. Man y systems are already
deployed that may be usable with little or no alterations to meet the needs of UAS operating
in certain environments. Other existing systems will require modifications to enable them
to meet the various C2 Link System MASPS and MOPS in the desired operating
environments. There may also be service providers who may in the future1 build out
terrestrial solutions using the C Band spectrum allocated by the ITU.
International Civil Aviation Organization (ICAO)
ICAO is the branch of the United Nations (UN) that governs international air transportation
through a treaty mechanism. ICAO is preparing Standards and Recommended Practices
(SARPs) to deal with the international operations of UAS though their Remotely Piloted
Aircraft Systems (RPAS) Panel, a subset of their Air Navigation Commission. They plan
to address the aircraft, C2 Links, CS, and operational rules for UAS operations conducted
across international boundaries.
The goals of ICAO are to provide SARPs to allow safe and efficient air transportation
around the world. They strive to maintain a consistent minimum level of safety among all
member nations. They also strive to continuously improve the safety of the worldwide
aviation system. In pursuit of this goal, ICAO takes many actions to educate, monitor, and
create standards for the member states. ICAO strives to maintain a fair and reasonable
approach to aviation safety. In addition, ICAO strives to provide guidance for spectrum
usage by aviation to achieve the goals of safe flight. For the RPAS standards, the RPAS
Panel plans to use the RTCA MASPS and MOPS to guide their development of the related
1 No such systems are in existence at the time of writing this MASPS.
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