Airplane Description
DV 20 E AFM
Page 7 - 24
Rev. 2
22-Mar-2022
Doc. No. 4.01.25-E
In case of failure of any generator, the engine provides no more electric power to the
airframe. Failure of a generator is indicated by the low voltage light and negative current
on the ammeter.
In case of failure of Generator 1 the LANE A/B FAIL lights are flashing. At failure of
Generator 1 the ECU automatically switches one-time over to the Generator 2. A power
drop for a fraction of a second could be noticed when switching.
Failures of Generator 2 are not indicated by the LANE A/B FAIL lights.
The engine has two operating modi. The POWER mode is activated with Wide Open
Throttle (WOT) and when one ECU lane has failed. Otherwise the engine is operated
in the fuel efficient ECO mode. The engine instrument EMU 912iS evo indicates the current
mode of operation.
7.8.2 PROPELLER
A mt-propeller MTV-21-A/175-05 hydraulically regulated 2-blade constant speed propeller
is installed. The propeller has wood composite blades with fiber-reinforced plastic coating
and stainless steel edge cladding; in the region of the propeller hub the leading edge is
coated with adhesive PU foil. These blades combine the lowest weight whilst minimizing
vibration.
Propeller Control
The propeller pitch control system consists of the P-850-12 mt-propeller governor. The
pitch is set by the pilot via the propeller speed lever. To change the blade pitch angle
gearbox oil is pumped into the propeller hub. Decreasing the oil pressure leads to a
decrease of pitch and a higher RPM. Increasing the pressure leads to higher pitch and
a lower RPM.
Содержание DV 20 E
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Страница 18: ...General DV 20 E AFM Page 1 6 Rev 2 22 Mar 2022 Doc No 4 01 25 E 1 5 THREE VIEW DRAWING ...
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Страница 124: ...Performance DV 20 E AFM Page 5 4 Rev 2 22 Mar 2022 Doc No 4 01 25 E 5 3 2 INTERNATIONAL STANDARD ATMOSPHERE ...
Страница 155: ...DV 20 E AFM Mass and Balance Doc No 4 01 25 E Rev 2 22 Mar 2022 Page 6 9 6 4 2 LOADING DIAGRAM ...
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Страница 178: ...Airplane Description DV 20 E AFM Page 7 14 Rev 2 22 Mar 2022 Doc No 4 01 25 E Figure 7 5 Circuit Breaker Panel ...
Страница 182: ...Airplane Description DV 20 E AFM Page 7 18 Rev 2 22 Mar 2022 Doc No 4 01 25 E Figure 7 7 Brake System Schematic Diagram ...
Страница 201: ...DV 20 E AFM Airplane Description Doc No 4 01 15 E Rev 2 22 Mar 2022 Page 7 37 Figure 7 13 Overflow Bottle ...
Страница 214: ...Airplane Description DV 20 E AFM Page 7 50 Rev 2 22 Mar 2022 Doc No 4 01 25 E Intentionally left blank ...
Страница 228: ...Handling Care Maintenance DV 20 E AFM Page 8 14 Rev 2 22 Mar 2022 Doc No 4 01 25 E Intentionally left blank ...