The Diamond DA62 and Beechcraft Baron G58 represent two philosophies of the modern piston twin: the DA62 is a composite, Jet-A-burning diesel twin built for economy, while the Baron G58 is the traditional avgas cabin-class twin prized for speed and ramp presence. Both finance as twins; the fuel-cost difference is the headline.
Quick verdict
Choose the DA62 for dramatically lower fuel burn (Jet-A diesels), a seven-seat composite cabin, and modern systems; choose the Baron G58 for higher cruise speed, a proven airframe, and the widest support network. Both finance with ~20% down; the DA62's diesel drivetrain adds a scheduled replacement reserve, while the Baron adds higher fuel cost.
Side-by-Side Comparison
| Factor | Diamond DA62 | Beechcraft Baron G58 |
|---|---|---|
| Class | Modern composite diesel twin | Traditional avgas cabin-class twin |
| Engines | 2 × Austro Jet-A diesel | 2 × Continental IO-550 (avgas) |
| Typical cruise | ~192 knots | ~200 knots |
| Fuel burn (combined) | ~11–13 gph Jet-A | ~30–34 gph avgas |
| Seats | 7 | 6 (club cabin) |
| Engine maintenance | Scheduled replacement (TBR) | Traditional overhaul (TBO) |
| Typical price (2026) | ~$900,000–$1.6M | ~$180,000–$1.4M |
| Financing profile | 15–20% down, 15–20 yr | 15–20% down, 15–20 yr |
Operating Economics
This is where the two diverge most. The DA62's diesels burn roughly a third of the Baron's fuel and run on widely available Jet-A, insulating it from the leaded-avgas transition — a compelling operating-cost story. The offset is the Austro engines' scheduled replacement (TBR) rather than a traditional overhaul, a large reserve you must budget. The Baron's avgas engines cost more to feed but follow familiar overhaul economics and have an enormous parts and service network.
Financing & Insurance
Both finance as piston twins: expect around 20% down, 15–20-year terms, and insurance priced on your multi-engine time and rating. The DA62 is newer and higher-value on average, so loans are larger; the Baron spans a huge vintage range, so terms scale with age. On either, plan the insurance early — twin premiums and the multi-engine rating can decide affordability.
Specifications, prices, and financing figures are illustrative for the 2026 market and are not offers of credit. Jaken Aviation is a licensed aircraft financing brokerage — a division of Jaken Finance Group — and does not make loan decisions. All financing is subject to lender approval.
Frequently Asked Questions
Is the DA62 really cheaper to operate than a Baron?
On fuel, dramatically so — its diesels burn about a third of the Baron's avgas. The offsetting cost is the scheduled engine/gearbox replacement (TBR) to reserve for. Net operating cost still favors the DA62 when the replacement is budgeted.
Do both finance the same way?
Broadly yes — both are piston twins financed with around 20% down and 15-20-year terms, with insurance priced on your multi-engine experience. The DA62's higher average value means larger loans.
Which is faster?
The Baron G58 is somewhat faster in cruise; the DA62 trades a little speed for large fuel savings and a seven-seat cabin.
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