PS-28 Cruiser
PS-28N Cruiser
CR-MM-1-0-00
CHAPTER 10 – POWERPLANT
Revision No.: 24
Date of issue: 2020-11-19
10 - 38
ENGINE TEST REPORT
Aircraft
PS-28 Cruiser
Registration
Serial No.
Engine
ROTAX
Type
912 S2 / ULS2
Serial No.
Propeller
Type
Serial No.
Activity
Set down values
Measured values
Starting up the engine
1.
Min. oil pressure up to 10 sec.
0.8 bar (
12 psi
)
2.
Max. oil pressure*
7 bar (
102 psi
)
3.
Min. fuel pressure
0.15 bar (
2.2 psi
)
4.
Increase rpm as soon as oil pressure
reaches
2 bar (
29 psi
)
5.
Warming up the engine at
2,000 – 2,500 rpm
smooth running
6.
Voltage
12.4–14.4 V
Engine test
7.
Min. oil temperature
50 °C (
122 °F
)
8.
Oil pressure
2-5 bar (
29-73 psi
)
9.
Max. cylinder head temperature CHT
135 °C (
275 °F
)
10
Max. coolant temperature CT ****
120 °C
(248 °F)
11.
Rpm drop between ignition position
BOTH
and
L
/
R
at 4,000 rpm
max. 300
(115 rpm**)
12.
Acceleration
2–3 sec.
13.
Max. ground engine speed
***
14.
Idle
***
Defects:
*
During cold start for a short term only
**
RPM drop between ignition position
BOTH
and position
L
or
R
must not exceed 300 rpm. Mutual
difference between left (
L
) and right (
R
) ignition circuit must not exceed 115 rpm.
***
Max. ground engine speed and idle varies according to the type of propeller:
Klassic 170/3/R max. 5,000
±
100 rpm; idle 1,650
±
50 rpm
3B0RTR68C
max. 4,950
±
100 rpm; idle 1,650
±
50 rpm
**** With the change to a new cylinder heads design (applicable for ROTAX 912 ULS2 engines from
S/N 6 781 410 inclusive and for 912 S2 engines from S/N 4 924 544 inclusive, or on all engines
with type designation followed by suffix-01, or on all engines which have been later equipped with
the new cylinder heads design of P/N 413185 at cylinder head position 2/3), no longer the cylinder
head temperature is measured, but the coolant temperature.
Coolant temperature is displayed as “CHT” on Dynon EMS–120 display.
Conclusion
Complying – Non-complying
Complying if the measured values are not out of the range of the prescribed values.
Elaborated by:
Signature:
Date:
Checked by:
Signature:
Date:
Tab. 10-1
: Engine test repor