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Coavio DF 2000
Role	Two seat ultralight aircraft
National origin	Italy
Manufacturer	Coavio Costruzioni Aeronautiche, Frosinone, Lazio
Designer	Antonio dell'Orco
First flight	2001
Introduction	2004
Number built	54 up to 2021

The Coavio DF 2000 is a single-engine, high-wing all-metal ultralight aircraft with side-by-side seating for two. Built in Italy, production began in 2004.^[1]

Design and development

The DF 2000 was designed to provide a fast, robust, comfortable, low-cost side-by-side two-seat ultralight with a short take-off run. It has a conventional layout not unlike that of, for example, the Cessna 152, with a high wing, swept vertical tail and tricycle undercarriage.^[1]^[2]

Structurally, it is mostly built from aluminium alloy, reinforced with TIG-welded 4130 steel tubing in the cockpit area. The wing has constant chord and is braced on each side by a single, broad streamlined strut from the bottom of the fuselage. The shallow, turned-up wing tips are formed from composites. Inboard flaps are fitted. The cockpit area, under the wings and fitted with dual controls, is accessed by upward-hinged doors with deep glazing. Aft, the fuselage becomes more slender, though the swept fin has a long fillet. The rudder has a trim tab and the low-set, parallel-chord tailplane carries a balanced elevator. The tricycle undercarriage has main wheels which are cantilever spring-mounted from the lower fuselage and a steerable nose wheel. All wheels are usually spatted.^[1]^[2]^[3]

The DF 2000 family uses several engine/propeller combinations, mostly from the Rotax 912 series of 80 to 100 hp (60 to 75 kW) flat-4s but also the 85 hp (63 kW) Jabiru 2200 and 120 hp (89 kW) Jabiru 3300 powerplants.^[2]^[1]^[3]

The DF 2000 first flew in about 2001 and went into production three years later. .^[2]

Operational history

54 DF 2000 series aircraft have been built up to 2021.

Variants

Details from the manufacturer.^[4]

Spartan: Lightest DF 2000, 60 kW (80 hp) Rotax 912 UL engine, 2-blade wooden propeller. Mechanical trim control and flap actuation.
DF 2000 Light (or Base^[2]): Standard version, as Spartan but painted and with oil pressure gauge.
DF 2000 Plus: 75 kW (100 hp) Rotax 912 ULS engine, composite 3-bladed propeller with ground-adjustable pitch. Electrical elevator trim control and flap actuation, flap hinge fairing, partial cabin ventilation and additional instrumentation. Wheel spats and landing light.
DF 2000 Top: As Plus with a bigger oil cooler, radio and further instrumentation, upholstered seats and cabin panelling. Landing lights, radio and cockpit heater standard. Two-colour external paintwork. Flight-adjustable pitch propeller an option.
DA Evolution: de Luxe version with either 75 kW (100 hp) Rotax 912 ULS or 64 kW (86 hp) Jabiru 2200^[2] engine. As Top, but with full cabin ventilation, improved seating and electrical aileron trim control. Improved external lighting. Three colour external paintwork and bigger spinner.

Specifications (DF 2000 Top)

Data from Jane's All the World's Aircraft 2010/11^[2]

General characteristics

Capacity: 2
Length: 6.35 m (41 ft 8 in)
Wingspan: 9.60 m (63 ft 0 in)
Height: 2.40 m (15 ft 8.94 in)
Wing area: 11.60 m² (124.86 sq ft) gross
Empty weight: 285 kg (628 lb)
Max takeoff weight: 450 kg (992 lb)
Fuel capacity: 75L
Powerplant: 1 × Rotax 912 ULS 4-cylinder horizontally opposed liquid cooled piston, 75 kW (101 hp)
Propellers: 3-bladed composite

Performance

Maximum speed: 240 km/h (149 mph, 129 kn) in calm air
Cruise speed: 195 km/h (121 mph, 105 kn) at 75% power
Stall speed: 45 km/h (28 mph, 24 kn) with flaps extended
Never exceed speed: 240 km/h (149 mph, 129 kn)
Range: 680 km (420 mi, 367 nmi) at 195 km/h (with 30 mins of reserve)
Endurance: 3.5 h (with 30 mins of reserve)
g limits: +4/-2
Maximum glide ratio: 12
Rate of climb: 5.0 m/s (990 ft/min)
Take-off distance: 100 m (330 ft)
Landing distance: 80 m (265 ft)

References

^ ^a ^b ^c ^d Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, page 35. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X
^ ^a ^b ^c ^d ^e ^f ^g Jackson, Paul (2010). Jane's All the World's Aircraft 2010–11. Coulsdon, Surrey: IHS Jane's. pp. 386–387. ISBN 978-0-7106-2916-6.
^ ^a ^b Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, page 38. Flying Pages Europe SARL, 2015. ISSN 1368-485X
^ Coavio: Variants