Beechcraft Baron 58: The Complete Guide
By Renzo Madueño, CPL · Last updated May 2026 · 19 min read
The Beechcraft Baron 58 has been the standard against which every other piston twin is measured for over half a century. It is the only piston twin in its class still in continuous production, the dominant choice for owner-flown business travel, and the aircraft that defines what a six-seat, 200-knot, twin-engine cross-country machine should feel like. This guide covers specifications, V-speeds (including the life-or-death Vmc and Vyse), performance data, the wide $160K-$1.4M+ used and new market, common ADs and maintenance pitfalls, and how the Baron compares to the Seneca, Cessna 310, and Aerostar. Sources: FAA TCDS A23CE, Beechcraft POH, NTSB accident database, and the American Bonanza Society Baron community.
1. History & Overview
The Baron family began with the model 55 in 1961, a twin-engine evolution of the Bonanza. The Baron 58 debuted in 1969 as the stretched-cabin sibling, adding 10 inches of fuselage length, club seating option, twin entry doors, and aft-cabin baggage access. From day one it was positioned as the premier owner-flown piston twin — and despite competition from Cessna, Piper, and Aerostar, it has held that position for over 50 years.
The original Baron 58 used Continental IO-520-C engines producing 285 HP each. In 1984 Beechcraft introduced the pressurized 58P and turbocharged 58TC variants, both with TSIO-520-WB engines. In 1985 the Baron 58 was upgraded to the Continental IO-550-C producing 300 HP, which remains the engine in production today. Glass-cockpit Garmin G1000 aircraft (designated G58) began production in 2005, and the current model uses G1000 NXi with GFC 700 autopilot and ESP envelope protection.
Through 2026, more than 2,800 Baron 58s have been built. The aircraft is now produced at Textron Aviation's Wichita plant and starts at roughly $1.4 million new. It is the only piston twin in its performance class still in continuous production — every direct competitor (Cessna 310, Aerostar, early Senecas) has long since ended production or moved upmarket to turboprops. Owner-flown Baron pilots almost universally fly with a top-tier ANR headset like the Bose A30 — two IO-550s at cruise power are loud, and 4-hour legs at FL120 are standard.
2. Baron 58 Variants Timeline
| Year | Model | Key Changes |
|---|---|---|
| 1969 | Baron 58 (intro) | Stretched cabin variant of the 55 series. IO-520-C 285 HP engines. Club seating optional. Twin entry doors. |
| 1976 | Baron 58 (upgraded) | Improved fuel system, weight optimization. Gross weight increase. |
| 1984 | Baron 58P (pressurized) | Pressurized variant with TSIO-520-WB turbocharged engines. Production ended 1985. |
| 1984 | Baron 58TC (turbo) | Turbocharged but unpressurized variant. Production ended 1984. |
| 1985 | Baron 58 (IO-550) | Upgraded to Continental IO-550-C, 300 HP. Major performance bump and the engine still used today. |
| 2005 | Baron G58 | Garmin G1000 glass cockpit becomes standard equipment. GFC 700 autopilot. |
| 2010+ | Baron G58 (NXi) | Garmin G1000 NXi avionics, ESP envelope protection, LED lighting. Current production model from Textron Aviation. |
3. Baron 58 Specifications (Current G58 NXi)
Specifications for the current production Beechcraft G58 with twin Continental IO-550-C engines and Garmin G1000 NXi avionics. Always verify against the POH for the specific airframe.
4. Performance Data
Performance figures at MTOW (5,500 lbs) on a standard day at sea level unless noted. Use our density altitude calculator for hot/high adjustments and the fuel burn calculator for flight planning.
| Metric | Value | Notes |
|---|---|---|
| Takeoff Ground Roll | 1,373 ft | Sea level, MTOW, standard day |
| Takeoff over 50-ft Obstacle | 2,124 ft | Sea level, MTOW |
| Landing Ground Roll | 1,422 ft | Sea level, MTOW |
| Landing over 50-ft Obstacle | 2,323 ft | Sea level, MTOW |
| Max Cruise (Sea Level) | ~200 KTAS | Full power, sea level |
| Max Cruise (8,000 ft) | ~202 KTAS | 75% power |
| Normal Cruise (65%) | ~190 KTAS | Most efficient cross-country |
| Fuel Burn (Cruise 65%) | ~32-34 GPH total | Both engines combined |
| Fuel Burn (Long-Range) | ~28 GPH total | 55% power, lean of peak |
| Range (65%, 45-min reserve) | ~1,480 nm | Standard tanks |
| Service Ceiling (both) | 20,688 ft | Per FAA TCDS |
| Single-Engine Ceiling | 7,284 ft | Critical for high-altitude ops |
5. Baron 58 V-Speeds & Vmc Reference
Multi-engine V-speeds carry life-or-death consequences. Vmc (84 KIAS, red line) is the minimum control speed below which the aircraft cannot maintain directional control with one engine inoperative and the other at takeoff power. Vyse (101 KIAS, blue line) is the best single-engine rate-of-climb speed and must be flown after any engine failure above Vmc. Memorize these for every Baron flight.
Critical: Vmc decreases with altitude (less air density = less thrust asymmetry) but the certification value at sea level is the legal minimum. Operating near Vmc with an engine out is one of the most dangerous flight regimes in piston twin operations. The Vmc demonstration maneuver is required on every multi-engine checkride for this reason.
6. Cost to Buy a Baron 58
The used Baron 58 market is large and active. Trade-A-Plane, Controller, and the American Bonanza Society marketplace typically have 30-50 examples listed at any given time. Pricing varies enormously based on engine times, avionics, paint and interior, and pressurization.
| Era / Variant | Price Range | Notes |
|---|---|---|
| 1970s Baron 58 (IO-520) | $160,000 - $260,000 | Older airframes with IO-520 engines (285 HP). Engines often run-out or mid-time. Best value buyers can find but expect to budget for engine overhauls ($40K-$55K each) and avionics modernization. |
| 1980s Baron 58 (IO-550) | $220,000 - $360,000 | Post-1985 with IO-550-C engines, the desirable engine variant. Steam gauges typical. ADS-B-compliant if updated. Strong value segment. |
| 1990s Baron 58 | $300,000 - $480,000 | Often have updated avionics (Garmin GNS530s, S-TEC autopilots). Engine times closer to mid-time. |
| Baron 58P (pressurized, 1984-85) | $280,000 - $450,000 | Pressurized + turbocharged. Out of production but the only pressurized piston twin in this class. Higher maintenance complexity. |
| Baron G58 (2005-2015) | $550,000 - $850,000 | Original Garmin G1000 glass cockpits. Strong demand from owner-pilots stepping up from singles. |
| Baron G58 (2016+) | $800,000 - $1.2M+ | Near-new with G1000 NXi, GFC 700 autopilot, ESP. Closest you can get to factory-new without paying $1.4M+. |
| New 2024 Baron G58 | $1.4M+ | Factory new from Textron Aviation. Full warranty. The only piston twin still in current production at this class. |
7. Cost to Operate a Baron 58
Operating costs for a privately owned Baron 58 flying 200 hours per year. The Baron is roughly 2-3× more expensive per hour than a high-performance single. If operating cost is the deciding factor, you are shopping in the wrong category.
| Item | Cost | Notes |
|---|---|---|
| Fuel (32 GPH total) | $180 - $240/hr | 100LL avgas at $5.50-$7.50/gal. The biggest single cost driver. Twin fuel burn is the brutal reality of multi-engine ownership. |
| Oil & Filters | $8 - $14/hr | Two engines = double the oil consumption and filter changes. |
| Engine Reserves (both) | $80 - $120/hr | Two IO-550 overhauls at $50K-$65K each every 1,700 hrs TBO. Plan financially. |
| Prop Reserves | $8 - $14/hr | Hartzell 3-blade props overhaul every 6 years or per AD. ~$6K-$10K per prop. |
| Annual Inspection | $4,500 - $9,000/yr | Twin annuals are roughly 2× a single. Significant squawks can push $15K+. |
| Insurance | $5,500 - $14,000/yr | Highly experience-dependent. Low-time multi-engine owners can pay $20K+ until they build PIC time. Loss runs matter. |
| Hangar | $500 - $1,500/mo | Larger footprint requires bigger hangar. Tiedown is technically possible but accelerates corrosion. |
| Avionics / Database | $1,500 - $3,500/yr | G1000 database subscriptions, chart updates, occasional repairs. |
| Total Owner Cost | $380 - $560/hr | All-in at 200 hrs/yr. The honest number that surprises first-time twin owners. Singles run $120-$180/hr. |
8. Common Issues & Airworthiness Directives
Over 55 years of operational history mean Baron 58 failure modes are well-documented. The aircraft is built robustly, but two engines, retractable gear, and complex systems mean more things can go wrong than on a fixed-gear single.
Magneto Timing & Wear
The IO-550 uses Slick magnetos that require 500-hour inspections. Impulse couplings, points, and condensers wear with use. Many Baron owners upgrade to Slick LASAR or SureFly electronic ignition for improved cold-start performance and fuel efficiency.
Spar Cap AD (AD 2017-13-04 / SB 32-3927)
Recurring inspection of the forward inboard wing spar cap for cracks. Originally driven by Beechcraft service bulletins. Repetitive inspection intervals apply. Some airframes have required spar cap replacement, which is expensive ($30K-$60K). Always verify compliance status during pre-buy.
Landing Gear Actuator
The electrically driven hydraulic landing gear can develop slow extension/retraction, internal seal leaks, or actuator failure. Regular maintenance and limit-switch adjustments are essential. A gear-up landing on a Baron is a six-figure event.
Fuel System Bladders
Older Baron 58s have rubber fuel cell bladders that crack and leak over time. Bladder replacement is $8K-$15K per side. Some airframes have been converted to wet wings or composite cells via STC.
Exhaust System Cracks
The IO-550 exhaust system is subject to thermal cycling stress. Cracks in the muffler, stacks, or risers can introduce carbon monoxide into the cabin. Inspect at every annual. Welded repairs are generally not recommended; replacement is preferred.
Vacuum System (steam-gauge aircraft)
Older steam-gauge Barons rely on dry vacuum pumps that fail without warning. In IMC this is potentially fatal. Most steam-gauge Barons have been upgraded with backup electric attitude indicators (Mid-Continent SAM, BendixKing KI-300, Garmin G5). Consider it mandatory for any IFR Baron.
Avionics Obsolescence (early G1000 Barons)
First-generation G1000 (pre-NXi) systems are no longer supported by Garmin for some upgrades. NXi conversion is possible but expensive ($50K-$80K). Factor avionics modernity into purchase price.
Turbocharger Issues (58P/58TC)
Pressurized and turbocharged Barons use Continental TSIO-520-WB engines with significantly higher complexity. Wastegate, controller, and turbocharger overhauls add $15K-$25K per engine vs the naturally aspirated IO-550. Operate per the POH on temperatures and you'll get full TBO.
Pre-Buy Tip: A Baron 58 pre-buy inspection should be performed by a shop that specializes in Beechcraft twins. Budget $3,000-$6,000. The inspection should include borescope of both engines, compression checks, log review back to new (continuity matters), AD compliance verification (especially the spar cap AD), corrosion inspection, gear swing, avionics functional check, and pressurization test if applicable. A skipped pre-buy on a $400K aircraft is malpractice.
9. Baron 58 vs Competitors
Head-to-head with the three other piston twins owner-pilots seriously cross-shop. The Baron wins on build quality and currency; the Cessna 310 and Aerostar win on value (out of production); the Seneca wins on operating cost.
| Aircraft | Engines | Cruise | Seats | Range | Useful Load | New Price |
|---|---|---|---|---|---|---|
| Beechcraft Baron 58 (G58) | 2× IO-550-C, 300 HP | 190-202 KTAS | 6 | 1,480 nm | ~1,650 lbs | $1.4M+ |
| Piper Seneca V (PA-34) | 2× TSIO-360-RB, 220 HP | 188 KTAS | 6-7 | 1,000 nm | ~1,300 lbs | $900K+ |
| Cessna 310R | 2× IO-520-MB, 285 HP | 190 KTAS | 6 | 1,400 nm | ~1,800 lbs | Out of production (used $120K-$250K) |
| Aerostar 600/700 | 2× IO-540, 290-350 HP | 220-240 KTAS | 6 | 1,400-1,800 nm | ~1,650 lbs | Out of production (used $190K-$450K) |
Beechcraft Baron 58 (G58)
Piper Seneca V (PA-34)
Cessna 310R
Aerostar 600/700
10. Multi-Engine Training in a Baron
The Baron 58 is widely used as both a transition trainer for new twin owners and as an advanced multi-engine commercial trainer. To fly it legally as PIC you need a private pilot certificate or higher, the multi-engine class rating, the complex aircraft endorsement (retractable gear + constant-speed prop), and the high-performance endorsement (engines > 200 HP).
Insurance is the practical gating factor for new owners. Most underwriters require 25-50 hours of multi-engine PIC time before they write favorable rates, and many require a type-specific transition program (typically 5-10 hours dual with a Baron-experienced CFI-MEI). Premiums for new multi-engine owners with low total time can exceed $20,000/year and may include strict open-pilot warranties.
For pilots earning their multi-engine rating, the Baron is generally more aircraft than is needed for the practical exam — the Piper Seneca or Beechcraft Duchess are more economical training platforms. But if you intend to own a Baron, doing your initial multi-engine training in type makes long-term sense. For the broader picture on the rating itself, see our multi-engine rating cost guide and the multi-engine rating guide. An up-to-date FAR/AIM and a portable ADS-B receiver like the Sentry Plus are standard gear for Baron oral prep and cross-country IFR flying.
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11. Frequently Asked Questions
How much does a Beechcraft Baron 58 cost?
A new Beechcraft Baron G58 from Textron Aviation costs approximately $1.4 million. Used Baron 58s span a wide range: 1970s IO-520 examples start around $160,000-$260,000; 1980s-1990s IO-550 examples run $220,000-$480,000; G58 glass-cockpit aircraft from 2005-2015 trade at $550,000-$850,000; and near-new G58 NXi aircraft (2016+) command $800,000-$1.2M+. Pressurized 58P models from 1984-1985 sit in the $280K-$450K range due to scarcity and unique pressurization capability.
How fast does a Baron 58 fly?
The Baron 58 with twin IO-550-C engines cruises at approximately 190-202 KTAS (220-233 mph), depending on altitude and power setting. Max cruise at 8,000 ft is around 202 KTAS at 75% power. Normal cruise of 190 KTAS at 65% power yields a strong balance between speed and fuel burn (~32 GPH total). Long-range cruise at 55% power drops fuel burn to about 28 GPH and extends range to ~1,500 nm. Vne is 223 KIAS.
How much fuel does a Baron 58 burn?
The Baron 58 with twin Continental IO-550-C engines burns approximately 32-34 gallons per hour at 65% cruise power. Long-range cruise at 55% power and lean-of-peak operation can drop fuel burn to about 28 GPH total. Maximum cruise at 75% power consumes 36-38 GPH. With 190 usable gallons standard, you have approximately 5.5-5.7 hours of endurance at long-range cruise, or 4.7 hours at normal cruise — both with the required 45-minute reserve.
What is the Vmc of a Baron 58?
The Vmc (minimum control speed, single-engine) of the Baron 58 is 84 KIAS, marked as the red line on the airspeed indicator. Below Vmc with one engine inoperative and the other at takeoff power, the aircraft cannot be controlled directionally with full rudder. Pilots must respect blue line (Vyse) of 101 KIAS for best single-engine rate of climb. The Vmc demonstration is a required maneuver on the multi-engine checkride and is one of the most critical concepts in multi-engine flying. Reference our full Vmc explanation in the multi-engine rating guide.
Why is the Baron 58 so popular for owner-pilots?
The Baron 58 has dominated the high-end light twin segment for over 50 years because of: (1) build quality typical of Beechcraft, (2) genuine 6-seat utility with optional club seating, (3) continuous production from 1969 to today — the only piston twin in this class still being manufactured, (4) strong used market liquidity, (5) modern G1000 NXi avionics on current production, (6) Continental IO-550-C powerplants with strong reliability records, and (7) a worldwide parts and support network through Textron Aviation. For step-up owners coming from a Bonanza or Cirrus, the Baron offers a true family-and-luggage cross-country machine with twin-engine safety.
How much does it cost to operate a Baron 58 per hour?
All-in operating cost for a privately owned Baron 58 typically runs $380-$560 per hour, assuming 200 hours per year. This includes fuel (~$200/hr at $6.50/gal avgas and 32 GPH), oil, engine reserves for two IO-550s (~$80-120/hr), prop reserves, annual inspection (amortized), insurance, hangar, and avionics database fees. Twin ownership is roughly 2-3× more expensive per hour than a high-performance single like a Cirrus SR22. The Baron's value is in capability, not affordability.
What is the TBO of the IO-550 in a Baron 58?
The Continental IO-550-C in the Baron 58 has a manufacturer-recommended TBO of 1,700 hours or 12 years, whichever comes first. TBO is a recommendation, not a regulatory limit, for Part 91 operations. Many IO-550s reach TBO with strong compressions and clean oil analyses, but engine reserves should be funded as if you will pay $50,000-$65,000 per overhaul. With two engines, plan $100K-$130K total when the airframe reaches TBO.
Is a Baron 58 hard to fly?
The Baron 58 is a complex, multi-engine, high-performance aircraft requiring a multi-engine class rating, complex endorsement, high-performance endorsement, and at minimum a private pilot certificate. Most insurance underwriters require at least 25 hours of multi-engine PIC time before they will write favorable rates, and many require a type-specific transition program (5-10 hours dual). The Baron itself is well-behaved — stable, predictable, with no nasty habits — but the workload and systems complexity are an order of magnitude above a Bonanza or Cirrus.
Baron 58 vs Cessna 310 vs Piper Seneca: which is best?
It depends on mission and budget. The Baron 58 wins on build quality, useful load, current support, and resale value but costs the most. The Cessna 310R is the value play — strong useful load, similar cruise speed, much lower purchase price ($120K-$250K used), but out of production since 1981 with weaker parts support. The Piper Seneca V is cheaper to operate and is the dominant multi-engine trainer, but its 220 HP turbocharged engines provide less cruise speed and lower useful load than the Baron. For owner-pilots with the budget, Baron. For value-conscious cross-country owners, 310. For training fleets or budget-conscious twin time, Seneca.
Stepping Up to a Twin?
Multi-engine ratings, complex endorsements, and commercial written exams are on the road to flying a Baron well. Rotate has 1,800+ FAA practice questions including the full commercial-multi bank.
Related Guides & Tools
Sources & How to Verify
Specifications drawn from FAA Type Certificate Data Sheet A23CE, current Beechcraft G58 Pilot Operating Handbook, and Textron Aviation public marketing materials. Used market pricing reflects 2026 listings on Trade-A-Plane, Controller, and the American Bonanza Society marketplace. Engine TBO and overhaul cost figures come from Continental Motors and major piston overhaul shops. AD references should be verified against the current FAA AD database for the specific airframe serial number. The American Bonanza Society maintains the deepest operator knowledge base for the Baron 58 family.