Regente
Operational C-42 Regente of the Base Aerea Santa Cruz in 1972
Role	Utility transport and AOP Type of aircraft
Manufacturer	Neiva
First flight	7 September 1961 (360 Regente) January 1967 (420L Regente) 1972 (420 Lanciero)
Introduction	1963 (360 Regente) 1969 (420L Regente) 1973 (420 Lanceiro)
Primary user	Brazilian Air Force
Produced	1963–1975 (360 Regente) 1969–1971 (420L Regente) 1973–1976 (420 Lanceiro)
Number built	122

Neiva Regente is a Brazilian propeller-driven four-seat light utility aircraft manufactured by Indústria Aeronáutica Neiva.

History

The design was started in 1959 for a four-seat cabin monoplane aircraft with a high wing and fixed undercarriage. The prototype, designated the Neiva Regente 360C, was first flown on 7 September 1961 with a 145 hp (108 kW) Continental O-300 piston engine.

The type was ordered into production by the Brazilian Air Force with a more powerful 180 hp (134 kW) Lycoming O-360-A1D engine. Eighty aircraft were built originally designated the U-42 (later changed to C-42) for the utility role. First delivery occurred in February 1975.^[1] Neiva developed a three-seat air observation post version for the Air Force, designated the Regente 420L. Its tailcone was lowered in order to improve visibility, and it used a more powerful Continental IO-360D 210 hp engine. The aircraft was first flown in January 1967 as the YL-42. Forty were built for the Brazilian Air Force as the L-42. It had provision to carry light bombs or rockets on underwing hardpoints.

Neiva also developed a four-seat civil version designated the Lanceiro. The prototype (Registered PP-ZAH) first flew in 1970, followed by production aircraft in 1973. The company's subsequent involvement with Embraer resulted in the Lanceiro's program termination.

Variants

• Regente 360C – utility version (80 built)
  • U-42 – military designation of the Regente 360C
  • C-42 – military designation changed from U-42
• Regente 420L – air observation post version (40 built)
  • L-42 – military designation of the Regente 420L
• Lanciero – civil version (2 built)

Operators

 Brazil

• Brazilian Air Force

 Zimbabwe

• Zimbabwe Air Force^{[citation needed]}

Specifications (C-42)

Data from Jane's All the World's Aircraft 1969–70^[2]

General characteristics

• Crew: 1
• Capacity: 3 passengers
• Length: 7.04 m (23 ft 1 in)
• Wingspan: 9.13 m (29 ft 11 in)
• Height: 2.93 m (9 ft 7 in)
• Wing area: 13.45 m² (144.8 sq ft)
• Aspect ratio: 6:1
• Airfoil: NACA 4410
• Empty weight: 640 kg (1,411 lb)
• Max takeoff weight: 1,040 kg (2,293 lb)
• Fuel capacity: 172 L (45 US gal; 38 imp gal)
• Powerplant: 1 × Lycoming O-360-A1D air-cooled flat-four engine, 130 kW (180 hp)
• Propellers: 2-bladed Hartzell HC-C2YK-1A/A7666 constant-speed propeller

Performance

• Maximum speed: 220 km/h (140 mph, 120 kn) at sea level
• Cruise speed: 212 km/h (132 mph, 114 kn) (max cruise)
• Stall speed: 90 km/h (56 mph, 49 kn) (flaps down)
• Range: 928 km (577 mi, 501 nmi) at 1,500 m (4,900 ft) (econ. cruise)
• Service ceiling: 3,600 m (11,800 ft)
• Rate of climb: 3.5 m/s (690 ft/min)
• Takeoff run to 15 m (50 ft): 350 m (1,150 ft)
• Landing run from 15 m (50 ft): 460 m (1,510 ft)