Interactive comparison

Compare ownership, not brochures

Purchase price is only one part of the decision. Figures are indicative estimates at the typical market year for each model.

Decision factor	Piper Seneca VView aircraft profile	Diamond DA42 TDIView aircraft profile	Piper PA-34-220T Seneca IVView aircraft profile
Typical market year	2007	2008	1995
Estimated purchase	€454k	€420k	€360k
Annual cash cost at 80 h	€111k	€79k	€143k
Five-year cash outlay	€1.01m	€814k	€1.07m
Cruise speed	197 kt	160 kt	182 kt
Advertised range	828 nm	1200 nm	870 nm
Seats	6	4	6
Realistic payload	270 kg	406 kg	370 kg
Runway need	600 m	600 m	650 m
Data confidence	Preliminary — verify source data before deciding	Normalized for direct comparison	Preliminary — verify source data before deciding
Main trade-off	Useful six-seat cabin and turbocharged redundancy, but full-fuel payload is limited and two ageing engines create major reserve exposure.	Efficient and modern for a twin, but early diesel engine and gearbox support can create significant risk.	A refined Seneca III development, but its small production run makes prices and parts comparisons less liquid.

Popular head-to-head guides

Start with the decision pilots are actually researching

Each guide adds mission context and links back into the live comparison and Finder.

Two premium piston singles with very different answers to speed, fuel, cabin design and ownership complexity.

A fast, refined travelling aircraft against a slower utility platform built around payload and access.

Two leading single-engine turboprops that optimise for different combinations of speed, cabin volume and payload.

Modern diesel efficiency and composite design compared with a conventional turbocharged piston twin.

A modern Jet A trainer and tourer compared with the most familiar four-seat training platform.

No generic winner