OAP
I also had a FRI of £50k - worked out as £29,500 as 40% tax and £500 National Insurance. Mrs LJ spent it on a new 4x4 and woosh it was gone!!!
Not so sure that there are many airline captains aged 30 earning £100k per year though? Normally it takes 10 years plus as an experienced pilot to get a left hand seat with the 'big boys' that pay this sort of money in my humble opinion. Plus they normally pay towards their pension at about £15k per year to get a similar amount as the AFPS.
A Flt Lt pilot that has been in about 12 years is going to be paid about £65k (inc flying pay) plus not be paying into a pension which would cost a further £15k. So that is £80k real terms then get a loyalty payment of £70k to stay for a further 6 years before they qualify for a pension for life and a tax free lump sum isn't too uncompetitive. Also, if you are doing it to become rich then they are in the wrong job, I would suggest!
Best
LJ