TBM
PILOT’S OPERATING HANDBOOK
850
SECTION 7
DESCRIPTION
Page 7.6.12
Edition 1 -- June 22, 2007
Rev. 0
PROPELLER
Airplane is equipped with an all--metal, four--bladed, constant--speed and
full--feathering propeller.
Regulation
Propeller governor located on engine maintains rotation speed selected by
pilot with propeller governor lever. Regulation is obtained through propeller
blade pitch variation : counterweights drive propeller blades toward high pitch
(low RPM) whereas oil pressure delivered by governor drives back blades
toward low pitch (high RPM).
Propeller governor allows feathering either by voluntary pilot action via the
propeller governor lever or automatically in case of engine failure or
shutdown.
Propeller reverse pitch allows reduced taxiing speed or landing roll. Change
from idle to reverse position is performed with power lever (Refer to
Paragraph ”ENGINE CONTROLS”).
Propeller overspeed regulator tests
(Figure 7.3.6)
”PROP O’SPEED TEST” push--button located on pedestal console near flap
control lever is used on ground to check proper operation of propeller
overspeed regulator. This push--button activates a solenoïd, attached on
propeller overspeed regulator, which limits propeller rotation speed when
power lever is positioned forwards.
PIM - DO NOT USE FOR FLIGHT OPERATIONS
Summary of Contents for TBM 850
Page 1: ...PILOT S INFORMATION MANUAL TBM 850 Edition 1 PIM DO NOT USE FOR FLIGHT OPERATIONS ...
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