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THE EFFORT
In the past 30 years, the French
Armed Forces have participated
in countless operations
far from their national support
infrastructure, gaining considerable
experience in forward
deployments. As a direct
result, the French requirement
for the Rafale called for significant
built-in deployability
and self-supportability, and
Dassault and its partners have
taken advantage of their
undisputed know-how to
develop a fighter with an
extremely low logistic footprint.
This is a crucial advantage
which will prove less
constraining for strategic airlift
assets as only four C-130
Hercules loads are necessary
to carry equipment and spares
for 20 Rafales for 30 days. For
example, no integral engine
test cell is required for the
M88 turbofans. Additionally,
thanks to unrivalled manufacturing
and assembly techniques,
there is no need to
check equipment boresighting
after replacement, and no
complex external testers are
required for Flight Line or
Organisational level maintenance.
For self-supportability, the
Rafale is designed to require
the minimum of ground support
equipment: it is equipped
with an on-board oxygen generation
system, and with a
closed-loop cooling fluid system
for on-board coolanol and
nitrogen circuits. The built-in
auxiliary power unit provides
electrical power until the
engine-driven generators come
on line.
For future operators, the
Rafale’s unmatched reliability,
maintainability and testability
will ensure an extremely
high availability, allowing
sorties to be conducted at a
sustained tempo for extended
periods of time. Full scale incountry
maintenance will be
carried out by customers, and
the local industry will benefit
from technology transfers:
French authorities have already
approved source codes transfers,
and even radar cross section
reduction material will be
maintained locally. The electronic
warfare suite can be
programmed by indigenous
experts, and new weapons
can be easily integrated. This
facilitates transparent decision
making process and support
through the life of the aircraft.
Unrivalled deployability
Unmatched Affordability
An extremely reliable and easily maintainable fighter invariably translates into
considerably lower maintenance costs. Numerous maintenance/support aspects
contribute to the Rafale’s incredibly low life-cycle costs:
- There is no complete airframe or engine depot level inspection required throughout the
aircraft service life, and only specific components such as Shop Replaceable Units (SRUs)
are returned for maintenance/repair. This is a remarkable achievement that will reduce
the amount of time during which the aircraft is not available. The same philosophy
applies to the M88 turbofan composed of 21 modules, interchangeable without needing
full balancing and re-calibration. For maintenance and repair, only modules or parts are
returned to the depot/manufacturer.
- The minimum spare part requirements allow a reduction in spares inventory, and the
very high commonality between variants minimises the number of spare items. Similarly,
changing, at flight-line level, printed circuit boards within a LRU instead of replacing the
LRU itself lessens the need for complete spare units (radar, Spectra, modular computers).
- The fighter is extremely reliable, and easy to maintain and repair, ensuring reduced
manning levels (minus 30 percent compared with the Mirage 2000), and lowered mechanics
training requirements. For instance, the side opening canopy facilitates ejection-seat
removal.
Stringent carrier
requirements have had a
positive impact on Rafale
maintainability.
VOICEMAGICS
Compared with earlier generation
systems fitted to other
fighters, the Rafale’s Man-
Machine Interface has been
tuned to considerably reduce
aircrew workload. One of the
most innovative choices made
by Dassault Aviation is the
introduction of the combined
Voice, Throttle and Stick (VTAS)
system which drastically eases
data entry and systems selections.
«As an alternative to using
manual methods, the direct
voice input technology allows
the pilot to activate data entry
functions, and select non-safetycritical
modes», explains
Philippe Rebourg, Dassault
Chief Test Pilot for Military
Aircraft. «In some demanding
combat scenarios, manual
actions can prove painfully
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