Beechcraft Baron G58 vs Piper M350 vs Piper Seneca

The Beechcraft Baron G58 and Piper Seneca are twin‑engine piston aircraft, typically chosen for redundancy and useful load, while the Piper M350 is a single‑engine, pressurized piston aircraft aimed at efficient, higher‑altitude cruising with simpler ownership and operation. In range, the M350 generally offers the longest real‑world legs thanks to strong high‑altitude cruise efficiency and oxygen‑free (pressurized) operation, often supporting trips around roughly 1,000 nautical miles with reserves depending on power settings and conditions. The Baron G58 is usually next, commonly suited to mid‑range missions in the several‑hundred‑nautical‑mile class, while the Seneca is comparable but often optimized more for payload and training/utility roles than maximum range. For passenger capacity, all three are typically configured for six seats, but practical occupancy differs: the M350 is commonly flown with four to five adults plus baggage for comfortable IFR range; the Baron can often carry four to five comfortably with baggage; and the Seneca’s cabin and sixth seat are useful, but full six‑adult loads can be more performance‑limited on longer trips.