3 spool
OK, so after a harrowing self teach on 3 spool engines I think I have made a breakthrough.
Can someone confirm 2 things for me please?
1. Fan, IP compressor and HP compressor all powered by there own turbine. Each is connected by its own shaft (therefore 3) and these shafts sit inside one another?
2. An advantage of a 3 spool engine is that only one spool needs to be spun by the starter. Question is which spool? I think it would be the HP spool as it appears the smallest with probably the least inertia.
Who would have thought I have an interview coming up!!?
Cheers all
WC