A Policeman wouldnt ask you that question!
But Ill try to give you an answer.
A Turbo Prop F/O ranges from about £18K-£23K
A Jet F/O ranges from about £27K-£40K
Its hard to say what your take home is due to different Taxes etc...
But a good average would be for a jet F/O £2100-£2600K net a month
These are only guessamations but are good ball park figures
Push down,houses get bigger
Pull Back,houses get smaller
Keep pulling back and the houses will get bigger again