Utilization
Fixed costs do not care whether the airplane flies. Every extra billable hour dilutes hangar, insurance, and staff across more revenue - which is why scheduling gaps and double-booking chaos are profit problems, not just annoyances.
+Free tool
Is your fleet actually making money?
Five numbers tell you. Enter your fleet size, utilization, rate, and costs - margin, break-even hours, and annual profit update as you type. No email required, no spreadsheet built.
Calculator
Your operation
What the numbers say
Net margin
Healthy GA rental operations typically land between 10% and 25%.
27.3%
Break-even utilization
Hours per aircraft, per month, before the fleet earns a dollar.
21.4 hrs
Monthly revenue
3 aircraft x 60 hrs x $165
$29,700
Monthly profit
After hourly costs and fixed costs.
$8,100
Annual profit
Twelve months at this run rate.
$97,200
Annual revenue per aircraft
A quick way to compare airplanes across fleets.
$118,800
Rules of thumb, not accounting advice. Every operation weighs seasonality, instruction mix, and reserves differently.
+Where profit actually comes from
Three levers move every number above.
The spread
Profit per hour is your rate minus your true hourly cost - and "true" is where operations get surprised. Unfunded engine reserves make the spread look wider than it is until overhaul day arrives with an invoice.
Leakage
Unbilled tenths, forgotten fuel reimbursements, and balances nobody chases are pure margin walking out the door. Metering every flight automatically is usually worth more than raising rates.
+Fine print
What to put in, what to expect out.
How accurate is this?
It is deliberately simple: five inputs, straight arithmetic, no hidden assumptions. It will not replace your accountant, but it makes the relationship between utilization, rates, and costs impossible to ignore - which is where most fleet losses hide.
What belongs in hourly operating cost?
Everything that scales with the tach: fuel or your wet-rate fuel share, oil, engine and prop reserves, avionics reserves, and a per-hour maintenance allowance. If you fund reserves per hour flown, include them here, not in fixed costs.
What belongs in monthly fixed costs?
Everything you pay whether the fleet flies or not: hangar or tie-downs, insurance, software, subscriptions, staff or instructor guarantees, and loan payments. Dividing these across more flying hours is one of the strongest profit levers you have.
How does Resyrv change these numbers?
Mostly through utilization and leakage. Conflict-free scheduling keeps airplanes booked instead of idle, automatic metering bills every tenth of an hour actually flown, and reserve accruals fund maintenance before it becomes a surprise.
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See it with your own aircraft.
Add your aircraft and your rates, then see the schedule, the squawks, and the ledger all work off one record. No card required.