Overview
The Diamond D-Jet was a proposed single-engine very light jet developed to offer affordable jet ownership. Designed with composite construction and a small turbofan engine, it targeted private pilots transitioning from piston aircraft. The program ultimately did not reach production.
Specifications
- Engine
- 1 × Williams FJ33-4A-19
- Engine type
- Turbofan
- Thrust
- 1,564 lbf · 7 kN
- Avionics
- Garmin G1000
- Wing tips
- No winglets
- Seats
- 4
- Crew
- —
- Cabin width
- —
- Cabin height
- —
- Cabin length
- —
- Exterior length
- —
- Tail height
- —
- Fuselage diameter
- —
- Wing span
- —
- Baggage volume
- 71 ft³ · 2.0 m³
- Gross weight
- —
- Empty weight
- —
- Max takeoff weight
- 9,700 lb · 4,400 kg
- Max landing weight
- —
- Max payload
- 2,250 lb · 1,000 kg
- Fuel capacity
- Max cruise speed
- 315 kt · 362 mph · 583 km/h
- Maximum speed
- —
- Cruise speed
- —
- Approach speed
- —
- Range
- —
- Fuel burn
- 12.20 nm/gal · 5.97 km/L
- Ceiling
- —
- Rate of climb
- —
- Takeoff distance
- 2,300 ft · 700 m
- Landing distance
- 2,050 ft · 620 m
Gallery
Eclipse 400 ECJ
Piper Jet
Cirrus Vision Jet
Operational Context
Diamond D-Jet — proposed single-engine very light jet
The D-Jet program was announced in the mid-2000s during a surge of interest in very light jets. Diamond Aircraft designed the aircraft with a composite fuselage, side-by-side seating, and a single Williams FJ33 turbofan mounted above the fuselage. The prototype first flew in 2008 as development progressed toward certification.
The aircraft was intended to cruise at approximately 315 knots (585 km/h) with a maximum takeoff weight projected around 5,000 pounds (2,270 kg). Cabin seating was planned for up to five occupants depending on configuration. Range targets were roughly 1,000 nautical miles (1,850 km).
Financial challenges and changing market conditions led to suspension of the program before certification. Although the D-Jet did not enter service, it reflected a broader effort to expand jet access to owner-pilots. The project remains a notable chapter in the very light jet segment.