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DIAMOND AIRCRAFT
DA 20/100 Flight Manual
Description
Doc # 202-100-VLA
20 December, 2000
Page
Issue 1
7 - 10
7.9. POWERPLANT
7.9.1. Engine
Rotax 912S3, 4 cylinder, 4 stroke engine, horizontally opposed, liquid cooled cylinder heads, air cooled
cylinders.
Propeller drive via integrated reduction gear (crankshaft RPM in parentheses).
Displacement:
82.5
cu.in.
(1.352
liters)
Max. T/O Power (5 min.):
100 HP / 73.5 kW at 2385 RPM (5800 RPM)
Max. Continuous Power:
94 HP / 69 kW at 2260 RPM (5500 RPM)
Additional information can be found in the Engine Operating Manual.
The powerplant instruments are located on the instrument panel on the co-pilot's side. The ignition switch
is present in form of a key switch. The ignition is turned on by turning the key to position BOTH. The
starter is operated by further turning against spring load to the right (position START). The engine is shut
off by the ignition switch.
Due to the backlash in the reduction gear, the propeller can be easily turned approximately 30
°
by hand.
Sudden throttle movements should be avoided to prevent impact load in the gearbox.
7.9.2. Carburetor Heat, Throttle, Propeller Pitch Control Lever
The Throttle and Propeller Pitch Control levers are grouped together (throttle quadrant) on the center
console. The tension/friction on the throttle quadrant can be adjusted using the friction knob, located on
the right side of the center console. The carburetor heat knob is located in the front of the center console.
Carburetor Heat
:
square knob, in front of throttle in center console
knob
pulled
=
ON
During normal operation the Carburetor heat is OFF (knob pushed IN)
Throttle
:
large lever with black conical knobs
lever full forward = FULL throttle
lever full rearward = IDLE