It would depend alot on utilisation as there are fixed costs to divide up by hours flown. Insurance and hangarage / parking are the most significant.
If you take a group of ten paying £70 per month then that is £8400 per year of income for the group. Divide by 200 hours (typical annual hours?) gives £42, plus say £25 towards 'hourly based' maintenance, oil and wear and tear plus £35 per hour for fuel. Total is £102 per hour. At 400 hours pa it is down to £81.
Those numbers look fairly generous for a 152, so should cover occasional unexpected expenses (e.g. GPS upgrade!) but owners always run the risk of unexpected maintenance expenses that would blow the budget.
Edited to add that for sole ownership the insurance would be cheaper and parking at a strip will be much cheaper than hangarage at a 'proper' airport.
Last edited by Tall_guy_in_a_152; 15th October 2007 at 15:21.