Diamond DA40 Diamond Star vs Piper Archer
Head-to-head — specs, at a glance.
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iDiamond DA40 Diamond Star
The Diamond DA40 Diamond Star is a modern composite four-seat single that has become one of the most popular training and personal aircraft of the 21st century. Built in Austria and Canada, the DA40 combines Diamond's composite construction expertise with either a Lycoming IO-360 (180HP) or the innovative Austro AE 300 diesel engine (168HP, jet fuel capable) in the DA40 NG variant.
- +Excellent safety record with docile handling and resistant-to-spin characteristics
- +Exceptional fuel efficiency, especially NG diesel variant (5-7 GPH)
- +Modern composite construction with worldwide parts and service support
- !Castering nosewheel requires learning curve and differential braking technique
- !Moderate cruise speed (147 KTAS) limits business travel appeal
- !Limited baggage capacity and four-seat constraint
Piper Archer
The Piper PA-28 Archer is the four-seat touring workhorse of the PA-28 Cherokee family, offering 180 horsepower and a meaningful step up in useful load and cruise speed over the Warrior. The Archer lineage traces back to 1963 with the original PA-28-180 Cherokee 180, one of the first truly practical four-seat Cherokees, and extends through continuous production to the present day as the Archer LX and Archer DLX — making it one of the longest-running production aircraft in general aviation history.
- +Excellent cross-country performer: 125 KTAS, 565 nm range, comfortable four-seat cabin
- +Bulletproof engine and parts support: O-360 is most-produced GA engine; Archer is 30,000+ fleet airframe
- +Honest, docile handling with excellent IFR characteristics
- !Wing spar fatigue AD (2024-20-XX) is critical compliance item; unmodified spars life-limited to 12,000–13,499 hours
- !Modest climb performance at density altitude; not suitable for mountain/backcountry operations
- !Fuel tank seepage common on older airframes; resealing costs $2,000–$5,000 per tank
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