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|  MIL-C-l8244A(WEP)
(b) In operational use, or under procurement for operational use,
by other branches of the service.
(c) Modification of category a.
(d) Modification of category b.
(e) Certified by a competent government agency for commercial
aircraft use.
(f) Developed under contract to the services and approved in
principle.
(g) Under development on concurrent programs having more
stringent requirements or scheduled for earlier completion
(h) Designed and developed specifically for the requirements on
hand.
Compliance with the above listed order of categories shall be a major criterion in the selection of an
automatic flight control system subcontractor. The proposed use of systems, subsystems and com-
ponents from a category lower than category b shall be justified and any changes
made during the development phase which necessitate the use of systems, subsystems or components
in a lower category must be approved by the procuring activity. Requests for approval supported by
studies showing the necessity for the use of the system, subsystem or component shall be submitted
prior to the appropriate design review, at which time the procuring activity shall decide upon approval
or disapproval.
System Design - The AFCS shall be designed for minimum weight and volume
3.1.1.2.1
consistent with the design of the aircraft for which it is intended.
Avoidance of Duplication - Automatic flight control systems, subsystems
3.1.1.2.1.1
and components shall be so designed that a maximum of integration is accomplished, consistent with
system reliability, operation and safety between:
(a) Those components providing the automatic conrol function and
components Or parts comprising or providing any other function
of a weapon system, and
(b) The components providing the different functions of the automatic
flight control system itself.
Detailed requirements of each integration situation shall be as specified in the procurement document
or in the system or component specification.
Additional Design Requirements - The AFCS shall be designed to meet the
3.1.1.2.2
following requirements:
The electronic control amplifier shall consist of separate
assemblies for each major channel.
Channels having higher reliability requirements than other
channels shall be electrically isolated and have their own
power supply, circuit breakers, etc.
(c) A control panel switch shall be provided so that the AFCS
can be isolated before ground power is applied or removed.
4
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