The Diamond DA50 RG is a modern, five-seat, retractable-gear composite single powered by a Jet-A diesel — a comfortable, efficient cross-country airplane at the premium end of the piston market.
Key takeaways
- Modern & comfortable: wide cabin, retractable gear, Jet-A diesel.
- Efficient: diesel economics keep fuel costs low.
- Premium single: typically $800,000–$1.2M.
About the Diamond DA50 RG
The DA50 RG combines a spacious five-seat composite cabin with a single Jet-A diesel and retractable gear for efficient, comfortable travel. It's one of the most modern piston singles you can buy.
Its diesel drivetrain sidesteps the leaded-avgas question but carries a scheduled engine/gearbox replacement (TBR) to reserve for. Buy on condition, engine time, and complete records.
Ownership Considerations
- Fuel: low Jet-A burn — a real operating-cost advantage.
- Engine reserve: reserve toward the scheduled replacement (TBR), not a traditional overhaul.
- Insurance: retractable-gear single; sensitive to time-in-type.
- Maintenance: use a Diamond/diesel-savvy shop.
What to Check When Buying a Diamond DA50 RG
Focus the pre-buy on engine time since overhaul (with compression and borescope checks), avionics generation, damage history, and complete logbooks; older airframes warrant a careful corrosion inspection. Use a type-experienced shop — lenders typically require a pre-buy before funding.
Financing a Diamond DA50 RG
As a piston single, a Diamond DA50 RG typically finances with 15–20% down and terms up to 20 years for a well-qualified buyer, with engine time, avionics, damage history, and your credit driving the rate. Insurance rises with performance and low time-in-type and must bind before funding. Jaken Aviation is a brokerage, not a lender — we shop your loan across a national network of aviation lenders. For rates, worked examples, and how to apply, see the resources below.
Prices and financing figures in this article 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
Does the diesel change financing?
No — it finances on standard piston-single terms. The diesel's difference is in ownership: low fuel burn but a scheduled engine/gearbox replacement to reserve for.
How much down on a DA50 RG?
For a well-qualified buyer, 15–20% is common. These are typical ranges, not guarantees.
Is the diesel a hedge against avgas going away?
It runs on widely available Jet-A, which some buyers value as a long-term hedge; weigh that against the replacement schedule.
Ready to Finance a Diamond DA50 RG?
Get a fast pre-qualification and let us compare offers across our lender network for your aircraft.
Get Pre-Qualified