It depends how you see the capital value of the a/c. Based on personal experience, leasing out a Bell 206 on say 300 hr/annum, you cover your variable costs (normal maintenance, insurance etc) and a contribution to a component replacement pot but not much more. So really nothing towards depreciation of the asset. And nothing for the SBs, ADs and random s**t like the 8.33 radio requirement.
I note you say 'personally': bear in mind that many of your costs (maintenance etc) will have VAT added, but you can't charge it out unless you put the a/c inside some sort of registered corporate wrapper.
Whatever you do, don't think you're going to make money from doing this. The best you can hope for is a contribution to your costs. True of an R22 in a flying school, and a Bell 206 on charter work