From the existing guide library. Pricing, loan examples and source dates may be historical. Use current written quotes for your purchase. The worksheets use the shared calculation method.

The True Operating Cost of Piper Twin Comanche

The Piper Twin Comanche is an affordable twin-engine piston aircraft offering six-seat capacity, excellent performance, and proven reliability. Plan for $68,000–$86,000 annually in operating costs at 100 flight hours, or $680–$860 per hour. The Twin Comanche dominates affordable twin markets.

Quick Specs: Piper Twin Comanche

Specification Twin Comanche
Engines 2 × Lycoming IO-320 (160 hp each)
Fuel Burn 32–38 gal/hr cruise
Cruise Speed 190–210 mph
Service Ceiling 19,000 ft
Useful Load 1,700–1,900 lbs
Seats 6
Range 800–1,100 nm

TL;DR: Piper Twin Comanche Annual Operating Cost Summary

  • Fixed costs: $20,000–$28,000/year (insurance $2,600–$3,800, hangar $8,000–$11,000, annuals $5,000–$7,000, training)
  • Variable costs at 100 hours: $48,000–$58,000/year (100LL fuel, oils, engine reserves)
  • Total at 100 hours: $68,000–$86,000/year (~$680–$860/hour)
  • Finance a $350,000 Twin Comanche: Add $5,100/month ($61,200/year) at 6.5% over 10 years
  • At 50 hours: ~$44,000–$57,000/year (~$880–$1,140/hour)
  • At 200 hours: ~$116,000–$144,000/year (~$580–$720/hour)

Twin-Engine Piston Operating Costs

Fixed Costs

  • Insurance: $2,600–$3,800/year for $300,000–$400,000 hull
  • Hangar: $8,000–$11,000/year (twin-engine facility)
  • Annual inspection: $5,000–$7,000 labor (twin-engine systems)
  • Crew training/proficiency: $2,000–$3,000/year

Variable Costs (per flight hour)

  • 100LL fuel: 35 gal/hr × $6.50/gal = ~$227/hour
  • Oil and lubricants: $8–$12/hour
  • Engine reserves: $18–$24/hour ($21K per engine ÷ 2,000 TBO × 2)
  • Twin-engine maintenance: $25–$35/hour
  • Avionics/systems: $30–$45/hour
  • Landing fees: $25–$50/landing

100LL Fuel & Operating Economics

Fuel Cost by Hours

Annual Hours Gallons 100LL Cost @ $6.50/gal $/Hour
50 1,750 $11,375 $227
100 3,500 $22,750 $227
150 5,250 $34,125 $227
200 7,000 $45,500 $227

Maintenance & Engine Reserves

Lycoming IO-320 Engines

  • IO-320: 2,000 hours TBO
  • Overhaul cost: $21,000–$28,000 per engine
  • Combined reserve: $49,000 ÷ 2,000 = $24.50/hour
  • Reliability: Proven piston engine

Twin-Engine Piston Maintenance

  • Engine system checks: $1,600–$2,400/year
  • Fuel system maintenance: $1,000–$1,500/year
  • Alternator/electrical: $800–$1,200/year
  • Cabin systems: $600–$900/year
  • Budget: $60–$85/hour for all maintenance

Insurance & Storage

Twin-Engine Insurance

  • $300,000 hull: $2,600–$3,200/year
  • $400,000 hull: $3,400–$4,200/year
  • Commercial operations: +15–25% premium

Storage Costs

Option Monthly Annual
Twin-Engine Hangar $650–$950 $7,800–$11,400
Tie-Down $200–$300 $2,400–$3,600

Annual Ownership Scenarios

Operating Cost (Not Financed)

Hours/Year Fixed Variable Total $/Hour
50 $24,000 $19,000 $43,000 $860
100 $24,000 $38,000 $62,000 $620
200 $24,000 $76,000 $100,000 $500

Total Cost of Ownership (With Financing)

Assume $350,000 Piper Twin Comanche, 6.5% APR, 10 years = $61,200/year debt service.

Hours/Year Operating Finance Total $/Hour
100 $62,000 $61,200 $123,200 $1,232
200 $100,000 $61,200 $161,200 $806

Financing the Piper Twin Comanche

  • Purchase price: $300,000–$450,000
  • Down payment: 15–20%
  • Loan amount: $255,000–$385,000
  • Term: 10–15 years
  • APR: 5.75–7.0% (2025)
  • Monthly payment: $4,400–$8,200

Lender Requirements: 650+ credit, multi-engine rating, $80,000+ annual income, business plan, hull insurance $300K+. Lenders like JakenAviation support twin-engine aircraft financing.

Piper Twin Comanche vs. Competitors

  • vs. Beechcraft Baron: Twin Comanche lower wing; Baron proven classic
  • vs. Cessna 310: Twin Comanche affordable; 310 larger cabin

Get prequalified for twin-engine aircraft financing »

Sources: Piper Aircraft Specs | AOPA Owner Reports | FAA TCDS

Operating-cost worksheet

Defaults are round assumptions, not a shop quote. AOPA’s worksheet splits fixed costs (insurance, hangar, the annual), direct costs (fuel and maintenance), and a reserve (overhaul cost divided by hours to TBO). Their old teaching example used half the hourly fuel bill as a maintenance starting point. Type your own gph and prices.

Stop dividing one year’s costs by too few hours

The expensive mistake on a Piper Twin Comanche is to take insurance, hangar, and an annual, divide by 80 or 100 hours, and call the result the cost of flying. Those bills arrive if you fly or not. AOPA’s operating-cost worksheet treats them as fixed costs, then adds direct costs that do move with hours: fuel, oil, and maintenance. A reserve for the engine or propeller is a third bucket, optional in their sheet and not optional in real life if you intend to keep the aircraft through an overhaul. The worksheet on this page follows that split. Any annual dollar range printed higher up on this page, if it does not cite an invoice or AOPA, is an illustration. Do not repeat it as a quote.

Fuel is a multiplication, not a rumor

AOPA’s instruction is price per gallon times gallons per hour. The gallons per hour belong to the way you actually fly the Piper Twin Comanche, not to the brochure cruise at the most flattering altitude. Oil is the same idea: price per quart times quarts per hour. Type both into the worksheet. If you do not know burn, leave a conservative guess and replace it after five tanks of your own notes. A blog’s “cost per hour” that hides the burn and the fuel price is not usable, because you cannot tell which assumption broke.

The maintenance starting point AOPA actually published

For a first pass, AOPA equates routine engine and airframe maintenance, on an hourly basis, to about half the hourly fuel and oil bill, and says to adjust it once you have your own invoices. The checkbox on the worksheet does that and nothing fancier. Turn it off and type a maintenance figure when you have one. A separate AOPA line for avionics is 5 percent of the avionics’ replacement value per 500 hours. That is a starting point from their sheet, not a prediction that your Piper Twin Comanche panel will fail on schedule. Unsupported radios cost more than that formula, because the fix is often a replacement, not a repair.

The overhaul reserve is a division

AOPA’s method is the shop’s overhaul or remanufacture price divided by hours left until the published TBO, not divided by the full TBO if the engine is already mid-time. Their sheet walks through a Cessna 172 example: $17,000 over 2,000 hours is $8.50 an hour, while a $27,000 reman with 900 hours left is $30 an hour. Those dollars are the example in the article, and they are not a 2026 quote for a Piper Twin Comanche. The arithmetic is what you copy. Propeller overhaul, in the same AOPA sheet, is penciled at about $0.25 an hour for a fixed-pitch prop and about $1 an hour for a constant-speed prop, with more for a three-blade. Treat those as historical placeholders and ask a prop shop.

Sources