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THIS IS AN UNCONTROLLED DOCUMENT.
THIS ELECTRONIC DOCUMENT MAY HAVE BEEN SUPERCEDED.
THE MOST CURRENT DOCUMENT INFORMATION IS AVAILABLE
FROM YOUR BELL HELICOPTER TEXTRON REPRESENTATIVE.
PRODUCT DATA JANUARY 2003
ROLLS-ROYCE 250-C40B ENGINES FADEC ELECTRONIC CONTROL UNIT
The primary design parameters of the Bell
430 emphasize safety in every aspect of
the aircraft. All critical flight systems are
either duplicated or isolated / separated
to meet / exceed the specifications of FAR
Part 29 Category A. Redundant load paths
are incorporated throughout all safety-of-
flight components, such as the main rotor
blades, transmission attachment, and flight
control linkage. Fuselage integrity is
ensured through two integral roll-over
bulkheads at the
front and rear of the cabin.
The fuel supply is contained in rupture-
resistant fabric and rubber cells which have
been drop-tested when 75% full from 15
meters (50 feet) without spillage, and are
interconnected with break-away self-
sealing fittings.
The engines selected for the Bell 430 are the Rolls-Royce 250-C40B. These are a
growth version of the well - proven 250-C30 engine series from Rolls-Royce which
provide reliable power under the extremes of climatic conditions. The Rolls-Royce 250
engine series has accumulated over 100 million hours of flight time, with deliveries
totaling over 30,000 engines. Controlling each engine is a Full Authority Digital
Electronic Control (FADEC). The FADEC provides automatic starting, is able to
maintain rotor speed and engine matching within closer tolerances, and to offer a 30-
second
single engine rating to enhance Category A operations. Additionally, as in all
Bell Helicopters, MANUAL power management of each engine is immediately available
to the pilot through the collective-mounted twist grip throttles.
ROLLOVER BULKHEADS
OCCUPANT PROTECTION BY REDUNDANT
FUSELAGE LOAD PATHS
ROLLS-ROYCE 250-C40B ENGINES WITH FADEC
SAFETY FEATURES
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