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Beechcraft Baron G58 vs Beechcraft King Air 360er

The Beechcraft Baron G58 and the Beechcraft King Air 360ER sit in very different categories despite sharing the Beechcraft name. The Baron G58 is a pressurized-absent, piston‑twin aircraft typically operated as a personal or light business traveler, valued for lower acquisition and operating costs and straightforward short-to-medium trip capability. The King Air 360ER is a pressurized, twin‑turboprop business aircraft designed for higher utilization, improved weather capability, and more demanding missions, with significantly greater payload flexibility and comfort. In range, the Baron G58 is generally suited to regional missions, often around the 1,000–1,500 nautical mile class depending on power settings, payload, and reserves. The King Air 360ER is optimized for extended operations and can reach roughly the 1,500–2,000+ nautical mile class, again depending on configuration and mission planning, with better performance at altitude. For passenger capacity, the Baron G58 commonly carries about four to five passengers plus a pilot (with practical comfort often favoring fewer on longer legs). The King Air 360ER typically seats about six to nine passengers in an executive layout, with more cabin space and baggage capability.

SpecBeechcraft Baron G58Beechcraft King Air 360ER
Summary
Cockpit22
DOC / nm$ 1.72$ 4.37
Total Seats610
Flight RulesIFRIFR
ManufacturerBeechcraftBeechcraft
Aircraft NameBaron G58KingAir 350ER
CertificationFAA / EASAFAA / EASA
Max Range (nm)14802338
DOC / nm / Seat$ 0.29$ 0.55
OEM VerificationUn-VerifiedVERIFIED
Useful Load (lbs)14506585
Standard Cabin Seats48
Direct Operating Cost$ 347$ 1,324
Flight Deck (Base Spec)Garmin G1000 NXiRockwell Collins Pro Line Fusion
Max Cruise Speed (ktas)202303
Base Aircraft Price (USD) $1,495,000 $8,750,000
Min Crew—1
Max Cabin Seats—9
Cabin
Cockpit22
Total Seats610
Standard Cabin Seats48
Lavatory—Yes (Belted Optional)
Min Crew—1
Cargo Door—Optional
Galley Location—FWD
Max Cabin Seats—9
Lavatory Location—AFT
Cabin Pressure (psi)—6.5
Galley / Refreshment—Refreshment Center
Engine
FADECNoYes
ModelIO-550-CPT6A-60A
Fuel TypeAvGas—
TBO (hrs)17003600
TBO (yrs)12—
Horsepower3001050
Fuel DeliveryFuel Injected—
No. of Engines21
Fuel Capacity (gal)194775
Flat Rating—ISA + 10
Dimensions
Length (ft)29.946.7
Wingspan (ft)37.957.9
Cabin Width (ft)3.54.5
Cabin Height (ft)4.24.8
Cabin Length (ft)12.619.5
Overall Height (ft)9.814.4
Cabin Volume (cu. ft)150—
Baggage Volume Int. (cu. ft)4671
Cabin Width - Floor (ft)—4.1
Cabin Length - Seating (ft)—19.5