On the other hand the load factor is only slightly above 50%.
This shows that the fleet is totally inadequate. Load factors under 60% of above 85% are both not normal for a well-run airline. In the first case, it shows planes are too large for the airline's traffic; in the second case, they are too small to accommodate the existing passenger load.
The problem stems from the fact that all SN planes have similar capacities. I have travelled yesterday in an ARJ 100 that was almost full. Very well! Buit in previous flights I have been on an ARJ 100 with only 25-30 people aboard. In such cases, an airline with a varied fleet would switch to a smaller plane, like the Embraer RJ 145 (this is what happened to me yesterday when BA replaved the normally scheduled ARJ 100 by an ERJ 145).
My suggestion thus is that SN BA shoud get rid of the old BAe 146s, that Bart doesn't like anyway, and replace them with smaller, more economical planes (ERJ 135/145; CRJ 100/200, ...).
What's your opinion, guys (and girls