Becoming a part-time FI is going to burn money. You will never see any of it again. At best, you will only earn £300 per month, depending on your input and it will cost you a huge amount.
£300 a month for part time FI? I've heard instructors wages are relatively low, but surely not that low? That would mean that full time would be £600pm and roughly £7000pa. Does anybody have any other figures that would make it a bit more viable as a part-time career option, or does that amount sound about the average?
I'm just asking as I plan to do the same thing... ie: have a non flying job for half the week that brings in most of the money and part-time instruct for some extra money and for free flying!