AIRCRAFT
DA 42 NG AMM
Propeller
Doc # 7.02.15
Rev. 4
61-20-00
Page 5
15 Mar 2018
A nitrogen-oil type accumulator is installed in the propeller control system. If OÄM 42-224 is performed,
the unfeathering accumulator is NOT installed. Oil at system pressure can flow into the accumulator
through an electrically operated shut-off valve. When the ENGINE MASTER switch is set to OFF the
accumulator shut-off valve is closed. Oil is stored in the accumulator at normal system pressure.
To un-feather the propeller you must set the ENGINE MASTER switch to ON. This will open the
electric valve at the accumulator and allow oil to flow under pressure from the accumulator to the
propeller. The oil flowing to the propeller will cause the blades to move into low pitch position. The
propeller pitch angle in low pitch position is 12° ± 0.2° (13° ± 0.2° if MÄM 42-600 is incorporated). As
soon as the propeller starts turning and the gearbox oil operates, the accumulator will be refilled.
The specified propeller settings are given as follows:
)
Low pitch:
12° ± 0.2° (13° ± 0.2° for MTV-6-R-C-F/CF 190-69)
)
Start lock position:
15° ± 1.5°
)
Feathered position:
81° ± 1° (80° ± 1° for MTV-6-R-C-F/CF 190-69)
Technical data governor:
)
Specific installation:
DA 42
)
Specific engine:
Austro Engine E4
)
Max. revolution:
2680 RPM ± 10 RPM
)
Min. revolution:
2030 RPM ± 10 RPM
)
Rotation:
LH
)
Control head position:
355°
If MÄM 42-600 is installed:
)
Specific installation:
DA 42 NG (with MÄM 42-600 is installed)
)
Specific engine:
Austro Engine E4-C
)
Max. revolution:
2680 RPM ± 10 RPM
)
Min. revolution:
2030 RPM ± 20 RPM
)
Rotation:
LH
)
Control head position:
355°
Summary of Contents for DA 42 NG
Page 933: ...AIRCRAFT DA 42 NG AMM Fuel Doc 7 02 15 Rev 4 28 TITLE Page 1 15 Mar 2018 CHAPTER 28 FUEL ...
Page 1459: ...AIRCRAFT DA 42 NG AMM Lights Doc 7 02 15 Rev 4 33 TITLE Page 1 15 Mar 2018 CHAPTER 33 LIGHTS ...
Page 1711: ...AIRCRAFT DA 42 NG AMM Doors Doc 7 02 15 Rev 4 52 TITLE Page 1 15 Mar 2018 CHAPTER 52 DOORS ...
Page 1853: ...AIRCRAFT DA 42 NG AMM Wings Doc 7 02 15 Rev 4 57 TITLE Page 1 15 Mar 2018 CHAPTER 57 WINGS ...
Page 2071: ...AIRCRAFT DA 42 NG AMM Engine Doc 7 02 15 Rev 4 72 TITLE Page 1 15 Mar 2018 CHAPTER 72 ENGINE ...
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