If I understand you question, your saying you would like to buy an airplane and charter it 100% of the time, and would it be profitable?
I would say no, there's a reason most aircraft that are used for chartering have owners. They are simply trying to defray the costs of ownership. It's a rare case when the chartering company actually owns the aircraft.
One option that you might want to consider if you really want ownership is finding a partner. Although this comes with its own obstacles.