 |
|||
|
Page Title:
Installation Design Requirements |
|
||
| ||||||||||
|
|  MIL-C-18244A(WEP)
Parameter Ground Adjustment - Controls shall be provided to facilitate
3.1.1.6.3
ground adjustments of the automatic flight control system parameters. Such control provisions,
however, shall be held to a minimum and shall not be readily accessible to flight crews, that is,
they must be tamper resistant.
Life - Components of automatic flight control systems shall have a guaran-
3.1.1.6.4
teed service life of at
least 1000 hours in naval aircraft. The operating time shall be computed by
reference to data in the
log book of the aircraft in which the component is installed or to a time totaliz-
ing meter supplied with
the equipment.
Shelf Life - The equipment shall be capable of immediate service use with-
3.1.1.6.5
out operational conditioning or maintenance during storage periods up to 24 months.
3.2
Installation Design Requirements
Accessibility and Serviceability - The automatic flight control systems and
3.2.1
components shall be designed for easy accessability and servicing. Components shall be desiged,
installed, located. and provided with access doors so that inspection, rigging, removal, repair, and
lubrication can be readily accomplished without major disassembly of the aircraft. Suitable pro-
vision for rigging pins, or the equivalent, shall be made for locating and holding each control system
component at some point in its travel, such as the neutral or mid-point to facilitate correct rigging
of the control system, and to permit removal of components, including the control surface, without
disturbing the rigging. Any AFCS component shall be replaceable in not more than one-half man
hour.
3.2.2
Maintenance Provisions - Systems and components shall be designed to
provide for ready accessibility and for connection of such test equipment as may be required for
field maintenance. (See 6.3)
3.2.2.1
Design of equipment should include provisions for the connection of circuit,
or other test facilities, by test point terminals or connections leading to selected positions in the
system or components. Actual locations should be determined by the system or component design
and as specified in the detailed system or component specification, Sufficient test points should be
provided to facilitate location of the most probable malfunction which may be expected to be encounter-
ed in service usage.
3.2.3
Foolproofness - All automatic fright control systems shall be designed so
that incorrect assembly and reversed operation of controls is impossible.
3.2.4
Fouling Prevention - All elements of the AFCS shall be suitably guided,
protected, or covered in all compartments where it is possible for them to be fouled by dropping of
articles, loading of cargo, changing of engines, etc.
Draining - Adequate provisions shall be made to drain AFCS components
3.2.5
subject to the accumulation of moisture or fluid leakage,
3.2.6
Hydraulic Systems - Hydraulic systems shall be in accordance with the
requirements of Specification MIL-H-5440, and shall comply with the design objectives of 3.1 of this
specification.
3.2.6.1
Ground Checkout - The hydraulic systems shall be designed and installed
in such a manner that ground checkout of automatic control systems can be made by the use of a
standard dual system hydraulic test stand without the necessity of reservicing any of the systems
after completion of testing.
17
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals