The ATR 42 is a twin-turboprop regional aircraft developed by ATR (Aerei da Trasporto Regionale / Avions de Transport Régional), a French-Italian aerospace company formed by Airbus (formerly Aerospatiale) and Leonardo (formerly Aeritalia). It is designed for short-haul regional flights and is well-regarded for its fuel efficiency, reliability, and capability to operate on short or unpaved runways.

Key Specifications (ATR 42-600)

• Crew: 2 (Pilots).
• Capacity: Up to 50 passengers.
• Length: 22.67 m (74 ft 5 in).
• Wingspan: 24.57 m (80 ft 7 in).
• Height: 7.59 m (24 ft 11 in).
• Max Takeoff Weight (MTOW): ~18,600 kg (41,000 lb).
• Engines: 2× Pratt & Whitney Canada PW127XT-M turboprops.
• Cruise Speed: ~556 km/h (345 mph, 300 knots).
• Range: ~1,560 km (970 mi) with full payload.
• Ceiling: ~25,000 ft (7,620 m).

Notable Features

• High-wing design for better ground clearance and improved stability.
• Fuel-efficient turboprop engines, making it cost-effective for regional airlines.
• Short takeoff and landing (STOL) capabilities, allowing operations in remote areas and smaller airports.
• Glass cockpit with modern avionics (in ATR 42-600 models).
• Noise reduction technology for a quieter cabin experience.

Variants

• ATR 42-300 (Original model, 1984) – First production model, later replaced by advanced versions.
• ATR 42-320 – Improved engines for better hot-and-high performance.
• ATR 42-500 – More powerful engines, improved aerodynamics, and increased speed.
• ATR 42-600 (Latest version) – Features an upgraded cockpit, more powerful engines, and higher efficiency.

Operators & Usage

• Widely used by regional airlines, cargo operators, and military forces.
• Popular among airlines like Silver Airways, HOP!, Air Tahiti, and PNG Air.
• Cargo versions (ATR 42-500F & 42-600F) used for freight operations.
• Military and government applications, including maritime patrol and search-and-rescue.