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Beechcraft Baron G58 vs Piper M350 vs Piper M600 Sls

The Beechcraft Baron G58 is a piston-powered, twin‑engine light aircraft typically used for personal travel and training, with a moderate range suited to regional trips and a practical cabin for about five to six people depending on loading. The Piper M350 is a pressurized, single‑engine piston aircraft positioned as a faster, more comfortable step up for owner‑pilots; it generally offers a longer usable range than the Baron and usually seats about five to six with greater cabin comfort and high‑altitude capability. The Piper M600 SLS is a single‑engine turboprop in a higher performance category, aimed at faster, longer cross‑country missions; it typically provides the greatest range of the three and a cabin that commonly accommodates five to six passengers, emphasizing speed, payload flexibility, and advanced avionics/automation. Overall, the Baron G58 is the classic twin for shorter regional missions, the M350 is a pressurized piston cruiser for longer trips, and the M600 SLS is the most capable, longest‑legged option with turboprop performance.

SpecBeechcraft Baron G58Piper M350Piper M600 SLS
Summary
Cockpit222
DOC / nm$ 1.72$ 1.34$ 2.19
Total Seats666
Flight RulesIFRVFRIFR
ManufacturerBeechcraftPiperPiper
Aircraft NameBaron G58M350M600
CertificationFAA / EASAFAA / EASAFAA / EASA
Max Range (nm)148013431406
DOC / nm / Seat$ 0.29$ 0.22$ 0.55
OEM VerificationUn-VerifiedUn-VerifiedVERIFIED
Useful Load (lbs)145013082200
Standard Cabin Seats444
Direct Operating Cost$ 347$ 285$ 603
Flight Deck (Base Spec)Garmin G1000 NXiGarmin G1000 NXiGarmin G3000
Max Cruise Speed (ktas)202213274
Base Aircraft Price (USD) $1,495,000 $1,195,000$3,081,400
Min Crew1
Cabin
Cockpit222
Total Seats665
Standard Cabin Seats444
Cabin Pressure (psi)5.65.6
LavatoryNo
Min Crew1
Galley LocationMID
Galley / RefreshmentRefreshment Centre
SL Cabin Altitude (ft)12600
Max Cabin Altitude (ft)8644
Engine
FADECNoNoNo
ModelIO-550-CTIO-540-AE2APT6A-42A
Fuel TypeAvGasAvGas
TBO (hrs)170020003600
TBO (yrs)1212
Horsepower300350600
Fuel DeliveryFuel InjectedFuel Injected
No. of Engines211
Fuel Capacity (gal)194120260
Flat RatingISA + 55
Dimensions
Length (ft)29.92929.7
Wingspan (ft)37.94343.2
Cabin Width (ft)3.54.14.1
Cabin Height (ft)4.244
Cabin Length (ft)12.612.312.3
Overall Height (ft)9.811.411.3
Cabin Volume (cu. ft)150165165
Baggage Volume Int. (cu. ft)462020
Baggage Volume Ext. (cu. ft)13