Ercoupe 415 Cost of Ownership: Vintage Two-Seat Budget, Sport Pilot Rules and Small-Loan Financing
This is the annual budget for an Ercoupe 415, the fixed-gear, twin-tail two-seater that ERCO built in large numbers right after World War II. It is for pilots who want one of the cheapest certified airplanes to own and need to know what a 1940s airframe really costs to keep flying.
What are you budgeting for?
The Ercoupe 415 is a side-by-side two-seater with fixed tricycle gear, a twin tail and, on most examples, a two-control system with no rudder pedals. The high-volume 1946 model, the 415-C, used a 75 hp Continental C-75; later versions used the 85 hp C-85 and higher gross weights. Descendants were built until about 1970 under the Forney, Alon and Mooney names, and those budget much the same way.
Prices are hedged. Asking prices for flying Ercoupes in 2025–2026 listings commonly run from the $20,000s for tired airplanes to $50,000 or more for restored ones. We could not verify model-specific sold data, so check Vref or Aircraft Bluebook and ask sellers for recent comparables. This page uses $40,000 as an illustration.
Ercoupe annual budget at 50, 100 and 200 hours
Fixed costs
| Item | Per year | Basis |
|---|---|---|
| Insurance (hull + liability) | $1,200 | Assumption; low hull value, experienced private pilot |
| Hangar or T-hangar | $2,400 | Assumption ($200/month); tie-down is cheaper |
| Annual inspection (before squawks) | $1,500 | Assumption; vintage airframe, shop familiar with the type |
| Subscriptions, type club, misc. | $500 | Charts or EFB, type club, small parts |
| Total fixed | $5,600 |
Hourly operating costs
| Item | Per flight hour | Basis |
|---|---|---|
| Fuel | $36.20 | 5 gph × $7.24/gal 100LL |
| Oil and filters | $1.50 | Small four-cylinder Continental |
| Engine reserve | $13.89 | Assumed $25,000 C-85 overhaul ÷ 1,800 hr |
| Propeller reserve | $1.00 | Fixed-pitch propeller |
| Unscheduled maintenance reserve | $15.00 | Corrosion repairs, brakes, tires, magnetos, fabric where fitted |
| Total hourly | $67.59 |
Total by utilization
| Hours / yr | Operating cost | Per hour | With loan | Per hour with loan |
|---|---|---|---|---|
| 50 | $8,979 | $180 | $13,588 | $272 |
| 100 | $12,359 | $124 | $16,967 | $170 |
| 200 | $19,118 | $96 | $23,726 | $119 |
Every line is an assumption; replace it with local quotes. On an airplane this inexpensive, fixed costs dominate at low utilization: at 50 hours a year, the hangar, insurance and annual make up most of the budget. Tie-down instead of a hangar is the quickest saving, but an aluminum airframe of this age benefits from cover.
What a 1940s airframe adds to the budget
The engine and systems are simple. The age of the structure is what makes an Ercoupe budget uncertain:
- Corrosion. Inspect the wing spar and attach points, the center section and the belly. Corrosion repairs are the most likely source of a surprise bill, which is why the unscheduled line here is $15 per hour rather than a trainer-level figure.
- Control system. The interconnected aileron-rudder system has cables, bellcranks and linkages that need to be checked for wear and correct rigging.
- Nose gear. Check the shock strut, steering and attach structure.
- Fabric and finish. Inspect any fabric-covered surfaces and budget for recovering if they fail a punch test.
- Engine. C-75 and C-85 engines are simple and supported, but check compressions, oil analysis and time since overhaul. Continental's published overhaul interval for these engines is the basis for our 1,800-hour reserve; confirm it for your engine. See understanding SMOH and TBO.
A pre-buy by a mechanic who knows the type is money well spent; see the pre-purchase inspection guide for older aircraft.
Want numbers for your specific aircraft?
Share the aircraft and timeline — a financing specialist will come back with rate, term and down-payment options.
Fuel: 100LL, autogas and unleaded options
At 5 gph and the AirNav national average of $7.24 a gallon (September 2026), fuel costs $36 per hour, or $3,620 over 100 hours. Regional averages from $6.76 (Central) to $7.88 (New England) put the same 100 hours between $3,380 and $3,940.
Low-compression Continentals are good candidates for alternatives. Autogas STCs exist for many small Continental installations; they require an STC that covers both your engine and airframe, and fuel that meets its conditions, usually ethanol-free. Swift Fuels' UL94 is sold at select airports for low-compression engines, subject to approval for your installation. As an illustration only, at an assumed $4.50 a gallon for qualifying autogas, 100 hours of fuel would cost $2,250 instead of $3,620. Verify the STC and local price before counting on the saving.
Sport pilots and the Ercoupe under MOSAIC
The Ercoupe has long been popular with sport pilots. The rules changed on October 22, 2025: sport pilots may now fly airplanes with a clean stall speed (VS1) of 59 knots CAS or less at maximum certificated takeoff weight, with up to four seats and one passenger, regardless of weight. An Ercoupe may qualify; check the specific airplane's flight manual or POH and its airspeed calibration, and keep the documentation for your insurer and lender. The MOSAIC light sport financing guide explains the rule and what it means for loans, and the light sport aircraft buyer's guide compares the Ercoupe's category with legacy LSAs and new Part 22 designs. Because the Ercoupe is a standard-category certified airplane, it is financed as a certified piston.
Financing a small, pre-1960 loan
As of September 2026, piston aircraft loan rates quoted by major aviation lenders generally start around 7% for well-qualified borrowers and run to roughly 10%. AOPA's guidelines call for 20% down on aircraft built before 1960 and reserve 20-year terms for loans of $75,000 or more, so an Ercoupe loan is short and small:
| Term | Monthly payment | Total interest |
|---|---|---|
| 7 years | $495 | $9,562 |
| 10 years | $384 | $14,084 |
| 15 years | $301 | $22,217 |
At 9.99%, the 10-year payment would be $423. Some lenders set minimum loan sizes, and on a loan this small the closing costs and the time spent qualifying are proportionally larger, so compare the total interest above with paying cash and keeping a maintenance reserve instead. The trade-offs are covered in aircraft loan vs cash purchase, and what lenders ask for is on aircraft loan requirements.
How this page differs from related pages
This page is the Ercoupe's annual budget. For other vintage two-seaters, compare the Aeronca Champ and Cessna 150 budgets. For the buying decision between light-sport, certified and experimental two-seaters, see the light sport aircraft buyer's guide. Other aircraft are on the cost of ownership hub.
Frequently asked questions
How much does an Ercoupe cost to own per year?
On this page's planning assumptions, an Ercoupe 415 flown 100 hours a year costs about $12,359 to operate before financing, or $124 per hour. A loan on a $40,000 example (20% down, 7.75%, 10 years) adds about $4,608 a year. The unscheduled maintenance line matters more on an airframe this old than on a newer trainer.
Does the Ercoupe have retractable gear?
No. The Ercoupe 415 has fixed tricycle landing gear, a twin tail and, on most examples, a two-control system that links the ailerons and rudder so there are no rudder pedals. Its limited elevator travel was designed to resist spins. Fixed gear keeps it simple to insure and maintain, but check the nose gear and its shock strut carefully on a pre-buy.
Can a sport pilot fly an Ercoupe?
Possibly. Since October 22, 2025, a sport pilot may fly any airplane with a clean stall speed (VS1) of 59 knots CAS or less at maximum certificated takeoff weight, up to four seats and one passenger, with no weight limit. Many Ercoupes may qualify, but check the specific airplane's flight manual or POH and airspeed calibration rather than relying on a listing.
Can you finance a $40,000 Ercoupe?
Sometimes, but the loan is small. Aircraft built before 1960 generally need 20% down, and 20-year terms are limited to loans of $75,000 or more, so expect 10 to 15 years. On a $40,000 example, the $32,000 loan is about $384 a month over 10 years at 7.75%. Some lenders set minimum loan sizes, so ask early.
How much fuel does an Ercoupe burn?
We plan on 5 gallons per hour for the 85 hp Continental C-85, about $36 per hour at $7.24 a gallon for 100LL (AirNav national average, September 2026). Earlier 75 hp C-75 airplanes burn a little less. Autogas STCs exist for many small Continentals; check that one covers your engine and airframe before using it.
What should I inspect before buying an Ercoupe?
Corrosion comes first: the wing spar and attach points, the center section and the belly on an airframe that is more than 65 years old. Then the nose gear, the control system linkages, the condition of any fabric-covered surfaces, and engine compressions and logs. Hire a mechanic who knows the type, and use the type club for parts sources and known issues.