Home' RTCA Documents for Review : C2 Link Systems MASPS_Draft Contents Appendix A
© 2018, RTCA, Inc.
Systems used to communicate between ground networks and satellites may also require
maintenance programs as a part of the aircraft certification. If routine tests are needed to
detect latent failures in such systems, ground networks, and/or satellites, those tests will be
part of the routine maintenance of the UAS required to maintain airworthiness. For purpose
yet to be built networks, the developer should consider incorporating continuous self-
testing mechanisms to detect any latent failures that could prevent the network from
achieving its continuity or availability requirements required by the UAS certification
The SE process requires consideration to be given to the end of the life cycle during the
design process. This prevents expensive or hazardous conditions from developing during
the use of a system. Currently envisioned UAS C2 Link Systems do not present any unique
disposal requirements that do not already exist with manned aviation.
Life Cycle Costs
Capital costs and operational costs for a UAS must be considered throughout the life cycle
of the system. Cost-effectiveness of any UAS will be evaluated at key steps in the design,
manufacturing, and operational phases of the life cycle. These evaluations will determine
if the UAS can proceed to the next phase or the program should be terminated. For
example, if a cost-effective sensor package cannot be procured or developed to meet the
mission requirements, the program could be terminated at the preliminary design phase.
Another example is the possibility of not being able to maintain the UAS in compliance
with the OEM maintenance requirements due to the inability to procure spare parts.
The life cycle costs of the C2 Link System should also be a consideration for the UAS
designer and operator. Use of a network or spacecraft at the end of its life cycle could
result in the inability of the system to operate when the spacecraft ceases operating systems
that are not cost-effective due to lack of customers or maintenance costs can also cause risk
to the continued viability of a UAS.
Managing cost and schedule are the keys to any successful program. The complexity of a
UAS development and operational deployment will require careful consideration of all the
interdependent schedules. For example, if FAA policy or regulations are required prior to
an operator being allowed to start commercial operations that schedule dependency must
be considered as a part of the risk management for the program. All aircraft certification
programs are dependent on the availability of FAA personnel to review documents and
witness testing reserved to the FAA, i.e., not delegated to the OEM. This aspect of the
programmatic risk is managed through a Partnership for Safety Agreement that is mutually
agreed upon between the applicant and the FAA early in the aircraft certification process.
Completing this agreement as early as possible in the program is imp ortant to managing
schedule risk for the UAS program.
It is important for the OEM and the operator of the UAS to establish agreements to secure
the C2 Link System for the life cycle of the program. If a purpose-built network will be
used, then the schedule for build out and long-term cost structure should be agreed upon
before significant nonrecurring costs are incurred in the program. Agreements should be
completed for the use of any existing networks or spacecraft for C2 Link System
connectivity early in the program to avoid schedule impacts on starting operations.
Links Archive DO-XYZ_ED-ABC_FRAC_SC236_MASPS Navigation Previous Page Next Page