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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THIS ELECTRONIC DOCUMENT MAY HAVE BEEN SUPERCEDED.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
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POWER TURBINE
SHAFT
TURBINE SHAFT TO
PINION GEAR COUPLING
DELIVERS ENGINE OUTPUT
POWER TO MAIN DRIVESHAFT (FWD)
AND TAIL ROTOR DRIVESHAFT (AFT)
SPARE DRIVE - 15 SHP
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The power turbine gear train supplies engine power to the main forward output drive
at a design speed of 9,598 RPM. In addition the
rear side of the main output drive provides
power to operate the airframe mounted
oil cooler blower.
POWER TURBINE GEARING
[ LEFT IS FORWARD ]
DRIVES P.M.A.
8. HELICAL POWERTRAIN DRIVE GEAR
9. HELICAL TORQUEMETER GEARSHAFT
10. HELICAL POWER TAKEOFF GEARSHAFT
11. SPUR POWERTRAIN IDLER GEAR
12. SPUR POWERTRAIN PERMANENT
MAGNET ALTERNATOR
13. SPARE DRIVE IDLER HELICAL SPUR
GEARSHAFT
14. SPARE SPUR DRIVE GEARSHAFT
Each gear train has an additional drive pad
location available for limited use as an
accessory power source, one each on the
front of the gearbox.
SPARE DRIVE PADS
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