A conventional avgas Archer against the Jet A diesel DA40, a decision that often comes down to local fuel economics.
The Archer is the predictable fleet choice: conservative performance, straightforward avgas support and short-field access that instructors and mechanics already know. The DA40 is the more capable travelling machine, with better speed, range and useful load while using Jet A efficiently, but its value depends on an Austro-qualified shop and fuel access being part of the real operating environment. For a school, dispatch reliability and maintenance turnaround can outweigh fuel burn. For a private owner flying frequent cross-country trips, the Diamond's advantages compound. Map support and fuel stops before comparing annual estimates.
The table below uses the same versioned PlaneFit dataset as the Finder. Prices and operating costs are planning estimates, not quotations.
Choose the Archer when conventional avgas support, a familiar training fleet and rapid local maintenance turnaround are the priorities. It is the lower-friction answer for an organisation whose instructors and engineers already know the PA-28 and whose missions do not reward the Diamond's efficiency.
Choose the DA40 NG when frequent touring makes Jet A efficiency and modern cockpit ergonomics meaningful, and when Austro engine support is demonstrably available. The operating case becomes stronger with utilisation; it weakens quickly if a parts delay grounds the aircraft.
Neither fits a buyer who needs to carry four adults with bags as a routine dispatch promise. If the loading exercise repeatedly forces fuel or passenger compromises, move up a payload class instead of choosing the less restrictive compromise.
Fuel prices, shop capability and parts lead times are local facts that PlaneFit cannot infer. The comparison also cannot see the individual aircraft's empty weight, damage history, engine status or avionics, which can outweigh the model distinction.
| Decision factor | Piper Archer LXView aircraft profile | Diamond DA40 NGView aircraft profile |
|---|---|---|
| Typical market year | 2023 | 2026 |
| Estimated purchase | €419k | €601k |
| Annual cash cost at 80 h | €34k | €36k |
| Five-year cash outlay | €589k | €781k |
| Cruise speed | 128 kt | 145 kt |
| Advertised range | 522 nm | 934 nm |
| Seats | 4 | 4 |
| Realistic payload | 293 kg | 349 kg |
| Runway need | 490 m | 590 m |
| Landing gear | Fixed tricycle | Fixed tricycle |
| Ratings and endorsements | None beyond the certificate | None beyond the certificate |
| Data confidence | Normalized for direct comparison | Normalized for direct comparison |
| Main trade-off | Predictable, comfortable and widely supported, but performance is conservative and four-person trips require loading discipline. | Exceptional fuel efficiency and modern avionics, but rear-seat loading and diesel-engine support require careful mission and maintenance planning. |
A factual first pass. Mission, condition and configuration can outweigh a brochure advantage.
They do not cross. The Piper Archer LX is the cheaper of the two at every utilisation from zero to 300 hours a year, on purchase and running cost together, so there is no break-even point to find. That is worth knowing plainly: on cost alone this is not a trade-off, and the case for the other aircraft has to be made on mission, cabin, speed or access rather than on eventual savings.
| Five-year cash, including purchase | Piper Archer LX | Diamond DA40 NG | Difference |
|---|---|---|---|
| 40 h / year | $598k (€554k) | $811k (€751k) | $213k (€197k) to Piper Archer LX |
| 100 h / year | $655k (€607k) | $860k (€796k) | $205k (€190k) to Piper Archer LX |
| 200 h / year | $750k (€694k) | $941k (€871k) | $191k (€177k) to Piper Archer LX |
The gap narrows as utilisation rises, which is the part a headline price comparison hides. Every figure uses the same planning model as the rest of the site: indicative market prices, a fixed annual base and a direct hourly cost, before financing, depreciation and tax.
Advertised range is a still-air, best-case number. With 4 people aboard and realistic reserves, plan on about 350 nm from the Piper Archer LX against 626 nm from the Diamond DA40 NG. On a return trip without refuelling, that is the radius that decides which destinations are on the list at all.
Against the 28,815 airports in the PlaneFit database that publish a runway length, the Piper Archer LX has enough runway at 26,780 of them and the Diamond DA40 NG at 25,104, comparing each aircraft’s take-off requirement of 1,608 ft and 1,936 ft against the longest runway on the field.
This is a planning comparison, not a statement that any particular operation is legal or advisable. It ignores surface, slope, elevation, temperature, obstacles and how heavily the aircraft is loaded, all of which extend the requirement. It also compares take-off distance only: landing distance is frequently the binding constraint and PlaneFit does not hold approved landing distances, so a field in these counts is not necessarily a field you can get back out of, or into.
Nothing separates them here. Neither carries an endorsement or rating requirement of its own beyond a pilot certificate for the category and class.