I just got rid of a single A321 that I was operating and turned out there was a big unwelcomed surprise: turn around times.
I was using the aircraft evaluation tool for and airport pair. Both 320 and 734 had similar values. They both showed same amount of “flights per week” and since the comparison yielded similar values, i decided to go with B734 since it had lower capital costs.
Well, once I got rid of the A321, I noticed that I had to adjust the departure times and get rid of 6 legs per week. This is a significant downgrade.
The only thing I see that may play a role on this is the cruise speed of Airbus being 20 kts faster. You would think that this would reflect on the “flights per week” value but it doesn’t.
Was I missing another parameter that I had to consider while I was making a decision?
Why the data, presented to us during the “flights per week” would not reflect this ?