ED Decision 2003/13/RM
(a) The engine must be subjected to an endurance test (with a representative propeller) that includes a total of 50 hours of operation and consists of the cycles specified in CS 22.1849(c).
(b) Additional endurance testing at particular rotational speed(s) may be required depending on the results of the tests prescribed in CS 22.1843, to establish the ability of the engine to operate without fatigue failure.
(c) Each cycle must be conducted as follows:
|
Sequence |
Duration
(Minutes) |
Operating
Conditions |
|
1 |
5 |
Starting – Idle |
|
2 |
5 |
Take-off power |
|
3 |
5 |
Cooling run (Idle) |
|
4 |
5 |
Take-off power |
|
5 |
5 |
Cooling run (Idle) |
|
6 |
5 |
Take-off power |
|
7 |
5 |
Cooling run (Idle) |
|
8 |
15 |
75% of maximum continuous power |
|
9 |
5 |
Cooling run (Idle) |
|
10 |
60 |
Maximum continuous power |
|
11 |
5 |
Cooling run and stop |
|
Total: |
120 |
(d) During or following the endurance test the fuel and oil consumption must be determined.
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