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FROM YOUR BELL HELICOPTER TEXTRON REPRESENTATIVE.
PRODUCT DATA
JANUARY 2003
TAILBOOM ASSEMBLY
The tailboom assembly includes the horizontal stabilizer assembly, driveshaft and
gearbox covers, vertical fin, and tail rotor guard and tail skid. The assembly is riveted
to the aft end of the aft fuselage, making it an integral part of the airframe. The semi
monocoque structure is made of longerons and circular bulkheads covered by aluminum
alloy skin. The tail rotor drive shafting is routed along the top surface of the tail boom to
the tail rotor gearbox. The anti-torque flight controls are enclosed inside the tail boom.
Access doors allow easy inspection.
The vertical fin sweeps back, both above and below the end of the tail boom. It is
canted to the right to reduce the tail rotor thrust required for forward flight. A dual
surface trailing edge flap (Gurney flap) is attached to the fin to prevent washout of the
vertical surface when bank angle exceeds 30°, and to increase efficiency in normal
flight without increasing the fins' area or weight. A steel tubular tail skid attaches to
the bottom of the fin and acts as an energy attenuating bumper to protect the tail rotor
in the event of a tail low landing. A tail rotor guard connects the bottom of the fin to the
tail boom and creates a protective arc just outside the rotation path of the tail rotor. It
is also painted in a contrasting striped pattern to make it more visible to passengers/
bystanders.
VERTICAL FIN
TAIL SKID
TAIL ROTOR GUARD
TAILBOOM
HORIZONTAL
STABILIZER
Summary of Contents for BELL 430
Page 1: ...Product Data ...
