Rolls Royce Trent Series

[kit0925]

Hi Guys,
I have a few questions about trent (500,700,800,XWB) and RB211-524,
1. Do they all equipped with DLN combustor or DLE combustor?
2. Do they all use air for turbine blade cooling with the cooling principle using convention?
3. And I would also like to ask about what data do the monitoring system collect during operation, as well as what instruments are being used? (I know that there are thermocouples for recording the inlet and outlet temperature, but what else?)
Thanks a lot :)

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