Beechcraft Baron G58 Cost of Ownership: Insuring, Reserving and Financing a High-Value Glass Twin
This page is for buyers of the G58, the Garmin-equipped Baron built from 2005. Its operating costs look like any long-body Baron's. What makes it different is value: a hull worth several times an older 58 changes the insurance, the loan and the cash you need at closing.
What is the G58, and where does it sit in the market?
The G58 is the long-body Baron 58 airframe with two 300 hp Continental IO-550-C engines and an integrated Garmin G1000 flight deck. It seats four to six, with club seating and double rear doors. It is not pressurized. The pressurized 58P and turbocharged 58TC were earlier, different models. Textron announced the G1000 NXi for the G58 on January 4, 2017 (Textron Aviation). On November 20, 2025 it said it would end Baron G58 production once current orders are filled, with factory support continuing. AOPA reported five Barons delivered in 2023 and two in 2024 (AOPA).
Textron doesn't publish a G58 list price. Contact Textron Aviation or a dealer about any new airplanes. Pre-owned G58 asking prices span a wide band, from the high six figures for early airplanes to well above $1 million for late, low-time NXi aircraft. Those are typical asking prices seen in 2025–2026 listings. Verify with Vref or Aircraft Bluebook. The $900,000 used here is a placeholder for the math.
What does a G58 cost per year at 50, 100 and 200 hours?
| Line item | Assumption |
|---|---|
| Hangar | $6,000 / yr |
| Insurance (1.1% of $900,000 hull + $2,000 liability) | $11,900 / yr |
| Annual inspection incl. typical squawks | $12,000 / yr |
| Garmin databases and subscriptions | $1,500 / yr |
| Avionics repair reserve | $1,500 / yr |
| Fuel, 31 gal/hr both engines | $224 / hr |
| Engine reserves (2 × $65,000 ÷ 1,900 hr) | $68.42 / hr |
| Unscheduled maintenance | $50 / hr |
| Oil and two prop reserves | $14 / hr |
| Fixed / variable totals | $32,900 / yr + $357 / hr |
| Hours / yr | Operating cost / yr | Per hour | All-in / yr | All-in per hour |
|---|---|---|---|---|
| 50 | $50,743 | $1,015 | $132,069 | $2,641 |
| 100 | $68,586 | $686 | $149,912 | $1,499 |
| 200 | $104,272 | $521 | $185,598 | $928 |
Fuel is priced at $7.24/gal, the AirNav national average, September 2026 (AirNav fuel report). Overhaul budgets include removal and reinstallation. Factory-rebuilt and new engines cost more. Every figure is a planning assumption, not a quote. For the 55 and 58 on the same assumptions, see the Baron family cost comparison.
How should you reserve for two IO-550-C overhauls?
Continental's TBO table (SIL98-9, Rev. E) lists the IO-550-C at 1,700 hours for serial numbers below 1006000 and 1,900 hours for 1006000 and later, each with a 12-year calendar limit. On illustrative budgets of $65,000 per engine, that is:
| Limit that applies | Hours to fund both overhauls | Reserve per hour |
|---|---|---|
| 1,900-hour TBO | 1,900 | $68.42 |
| 1,700-hour TBO | 1,700 | $76.47 |
| 12-year limit at 100 hrs/yr | 1,200 | $108.33 |
If you fly about 100 hours a year or less, the calendar limit arrives first. At that point the effective reserve is about $108 per hour, not $68. Part 91 owners are generally not required to overhaul at TBO, but lenders, insurers and your eventual buyer will price an engine past its limits. On a pre-owned G58, price each engine's remaining hours and years separately, because the engines are often at different times. See SMOH vs TBO explained and field overhaul vs factory rebuilt vs new.
How much does insurance cost on a high-value twin?
Hull premiums are priced against insured value, so a G58's hull line runs several times that of an older 58 for the same pilot. Twin underwriting also leans heavily on multi-engine time, Baron time and recurrent training. BWI describes 2026 pricing for experienced private pilots in personal-use pistons as "generally stable" (BWI, May 2026). There is no verified public premium survey for the G58, so this grid shows how premiums scale with assumed hull rates. It is not a set of quotes:
| Insured hull value | 0.8% hull rate | 1.1% hull rate | 1.5% hull rate |
|---|---|---|---|
| $700,000 | $7,600 | $9,700 | $12,500 |
| $900,000 | $9,200 | $11,900 | $15,500 |
| $1,200,000 | $11,600 | $15,200 | $20,000 |
- Experience decides which column you're in. A pilot with little multi-engine time should expect the higher rates, and possibly a dual-instruction requirement or a named-pilot restriction.
- The lender sets a floor. A financed G58 needs hull coverage at least equal to the loan balance, with the lender as loss payee. See aircraft loan insurance requirements.
- Liability limits matter in a six-seat airplane. Check the per-passenger sublimits as well as the total. See coverage options above the lender minimum.
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How do you finance a high-value twin like the G58?
AOPA Aviation Finance lists multi-engine maximum terms of 10–15 years and down payments of 15% to 30% depending on age (AOPA). Every G58 falls inside its lenders' 1970-and-newer twin window. On a loan this size, lenders also look closely at liquidity, income and your multi-engine experience. Three structures on the illustrative $900,000 price at 7.75%:
| Structure | Cash down | Loan | Monthly payment | Payments per year |
|---|---|---|---|---|
| 15% down, 15 years | $135,000 | $765,000 | $7,201 | $86,409 |
| 20% down, 15 years | $180,000 | $720,000 | $6,777 | $81,326 |
| 30% down, 10 years | $270,000 | $630,000 | $7,561 | $90,728 |
On the 20% down, 15 years structure, the first year's payments of $81,326 split into about $26,453 of principal, which builds equity, and $54,873 of interest. The short twin term means principal builds faster than on a 20-year single-engine loan, but the monthly cash need is higher. Here is the $720,000 loan across the rate band lenders quote as of September 2026 (about 7% to roughly 10%):
| Term | 7.00% APR | 7.75% APR | 8.50% APR | 9.50% APR |
|---|---|---|---|---|
| 10 years (120 mo) | $8,360/mo | $8,641/mo | $8,927/mo | $9,317/mo |
| 12 years (144 mo) | $7,404/mo | $7,695/mo | $7,992/mo | $8,398/mo |
| 15 years (180 mo) | $6,472/mo | $6,777/mo | $7,090/mo | $7,518/mo |
Loan amount $720,000. Principal and interest only; excludes insurance, taxes and fees. Illustrative, not a quote.
- Credit: most aviation lenders look for 680+, and the best pricing typically starts around 720–730+. See credit score tiers.
- Appraisal: engine times and avionics generation (original G1000 or NXi) move the appraised value, and the loan follows the appraisal. See aircraft appraisals and loan terms.
- Tax: 100% bonus depreciation is permanent for eligible property acquired after January 19, 2025. It covers used aircraft on your first use, subject to the more-than-50% qualified business use test. The 2026 Section 179 limit is $2,560,000. See aircraft depreciation after the 2025 tax law and confirm with a CPA.
- Ownership structure: if the airplane will be used for business, decide how it will be titled before closing. See owning an aircraft in an LLC.
What does the G1000 add to the G58 budget?
Glass brings recurring subscription costs and out-of-warranty exchange repairs that an older six-pack Baron doesn't have. This budget carries $1,500 a year for databases and a $1,500 repair reserve. Both are assumptions. Check Garmin's current pricing for your bundle. Owners of G1000-equipped G58s from model years 2006 through 2016 can buy a retrofit to G1000 NXi, priced by quote (Sarasota Avionics). If you are choosing between an original G1000 airplane and an NXi one, get an upgrade quote before comparing asking prices.
How this page differs from related Baron pages
This page covers the modern glass G58, where hull value drives insurance and financing. For the 55, 58 and G58 side by side, see the Baron family cost comparison. For the older short-body twin, see the Baron 55 cost page. For specs and payment examples, see the Baron 58 model page. The buying decision is covered in the Baron buyer's guide. Moving up from a G36 is covered in the Bonanza-to-Baron upgrade guide and the new G36 cost page. Comparing against a single? See the V35B, F33A, A36 and G36 model pages and the Bonanza buyer's guide.
Frequently asked questions
How much does a Baron G58 cost to own per year?
Using this page's planning assumptions, a G58 costs about $68,586 a year to operate at 100 hours, or $686 per hour, before any loan. On an illustrative $900,000 purchase with 20% down over 15 years at 7.75%, the loan adds about $6,777 a month, so the all-in figure is about $149,912 a year.
What engines does the Baron G58 use and what is the TBO?
The G58 uses two 300 hp Continental IO-550-C engines. Continental's TBO table lists 1,700 hours for serial numbers below 1006000 and 1,900 hours for 1006000 and later, with a 12-year calendar limit either way. That means two overhauls to reserve for. They often fall due at different times.
Is the Baron G58 pressurized?
No. The G58 is a normally aspirated, unpressurized twin with Garmin G1000 avionics. Beechcraft built a pressurized Baron, the 58P, from 1976 to 1985, and a turbocharged 58TC from 1976 to 1984. Those are different airplanes with different maintenance costs.
How much is insurance on a Baron G58?
Hull value and your twin experience set it. This page assumes 1.1% of hull value plus $2,000 for liability, which is $11,900 on an illustrative $900,000 airplane, for a pilot with substantial multi-engine and Baron time. Quotes for low-time twin pilots can be much higher and may carry training requirements. Get broker quotes before you commit.
How long can you finance a Baron G58?
AOPA Aviation Finance lists maximum multi-engine terms of about 10–15 years with 15–30% down, which is shorter than the 20 years available on larger single-engine loans. On a $720,000 loan at 7.75%, a 15-year term costs about $6,777 a month.
Is the Baron G58 still in production?
Textron Aviation announced on November 20, 2025 that it will end Baron G58 and Bonanza G36 production once current orders are filled, and said factory support will continue. AOPA reported five Barons delivered in 2023 and two in 2024. Most G58 buyers are shopping pre-owned airplanes.
All figures are illustrative planning numbers as of September 2026, not quotes, list prices or appraisals.