Piper Seminole PA-44-180

The Piper Seminole first flew in 1976 as a twin-engine derivative of the Piper Archer (PA-28-181) family. The original PA-44-180 had counter-rotating Lycoming O-360-E1A6D and LO-360-E1A6D engines at 180 horsepower per side and shared the Archer's wing and tail design with a stretched fuselage. Production began in 1979 and ran through 1982 before Piper paused the line.

Production restarted in 1989 with the updated Lycoming O-360-A1H6 and LO-360-A1H6 engines, which addressed camshaft and lifter durability problems on the original -E1A6D engines. The post-1989 Seminoles are essentially the airplane in current production, with avionics updates and minor refinements over the decades. The Seminole received Garmin G500 avionics in the 2000s and G1000 NXi in the 2010s. Current production aircraft have G1000 NXi as standard.

Recent developments: Piper announced the Seminole DX in 2024, a diesel-engine variant powered by DeltaHawk engines that targets a 35% fuel-burn reduction and improved performance. First U.S. delivery is scheduled for 2027. The standard avgas Seminole continues in parallel production. The DX is positioned for the training market that operates in regions with limited 100LL availability or that wants to reduce fuel-cost exposure for high-utilization training operations.

The Seminole cruises at about 162 KTAS at 75% power and 6,000 to 8,000 feet, burning roughly 22 gph total (11 per side). Long-range cruise at 65% drops to about 150 KTAS on 18 gph total. These are training-airplane speeds, not cross-country airplane speeds. The Seminole is a slow twin by design. The performance envelope was engineered for predictable training operations, not for getting from Florida to California fast.

Single-engine performance is the Seminole's defining feature. Counter-rotating engines mean there is no critical engine. Either engine failure produces symmetric handling behavior, which simplifies the airplane's behavior during engine-out training. Single-engine climb at sea level standard is about 220 fpm at gross weight, which is acceptable but not class-leading. Useful load is about 1,000 pounds. Full fuel (108 gallons usable) leaves about 350 pounds for people and bags. That's two adults and overnight luggage. Four-up cross-country is not the Seminole's mission profile.

The Lycoming O-360-A1H6 (left) and LO-360-A1H6 (right) are the current Seminole engines. Counter-rotating means the right engine turns the opposite direction from the left, which eliminates the critical-engine problem. Both engines have a 2,000-hour TBO per Lycoming Service Instruction 1009 BE. They are carbureted, run on 100LL, and represent the same basic engine as the Piper Archer's O-360-A4M with the counter-rotation variation on the right side.

Field overhauls at Gann Aviation, Penn Yan, or other reputable shops run about $31,000 to $40,000 per engine in 2026 prices. The Seminole's O-360s are the cheapest twin engines in the piston-twin category to overhaul. Total overhaul cost for both engines is meaningfully less than a single IO-550 overhaul on a Baron 58. This is one of the Seminole's quiet operating-cost advantages.

Oil consumption on healthy O-360-A1H6 engines runs about 0.2 to 0.4 quarts per hour per engine. The O-360 family is one of the cleanest oil-burning Lycoming engines. Cylinders typically reach TBO without intermediate top overhauls in training-fleet utilization. Original 1979-1982 Seminoles with -E1A6D engines had documented camshaft problems and most have been upgraded to -A1H6 engines at overhaul time. Verify the engine variant during pre-buy on pre-1989 aircraft.

Plan on $280 to $400 per flight hour at 150 hours a year of utilization, all-in. The Seminole has the cheapest piston-twin operating cost in the category outside of the Beech Duchess. Fuel and oil run about $120 to $155 per hour at 22 gph and $5.50 to $7 fuel. Engine overhaul reserve is $32 to $40 per hour for two engines at $31,000 to $40,000 each over 2,000-hour TBO. Prop reserve is $3 to $4 per hour. Airframe maintenance reserve is $30 to $55 per hour.

Annual fixed costs (hangar, insurance, annual inspection) add another $70 to $115 per hour at 150 hours a year. Insurance on the Seminole is meaningfully easier than on other twins because the counter-rotating engines reduce the underwriter's loss exposure from asymmetric-thrust engine-out accidents. First-time twin owners pay $8,000 to $15,000 a year. Established Seminole pilots with 200-plus hours in type pay $5,000 to $8,000. Training operations have different rate structures.

Acquisition cost in mid-2026: 1979-1982 Seminoles trade $300,000 to $400,000. Mid-cycle 1990s and early 2000s Seminoles run $400,000 to $550,000. Late-model Seminoles (2010s and newer) with Garmin G1000 NXi run $550,000 to $700,000. New from Piper, the Seminole has been priced above $1 million in recent production runs. Training operations typically depreciate the airframe aggressively against utilization, so used-market pricing reflects significant absorbed depreciation.

The training-fleet pedigree on most used Seminoles is the dominant pre-buy concern. Many airplanes have had hard landings, prop strikes, gear retraction events on the ground, and engine swaps. Service records are essential. A Seminole-experienced shop or independent pre-buy inspector is the only sensible way to buy one used.