Ed Sett100, you said
Misaligned coupling were not mentioned in the presentation
Well, knowing what is stated in the XV235 report, someone should be asking IPT how couplings can be checked for alignment to 1 degree, not 4 degrees. The need for 1 degree alignment is stated in the Declaration of Design and Performance document of 1968, but I am not aware of any procedure to ensure such conformity.
The same DDP clearly states that the max fuel flow rate for the seals/couplings is just over 1000 kg/min, but XV230 recieved fuel at twice that rate. We have got hung-up with delivery pressure, but flow rate seems to have been overlooked when we moved to AAR.
DV