The De Havilland Canada DHC-8, commonly known as the Dash 8, is a twin-engine turboprop regional airliner designed for short to medium-haul flights. First flown in 1983, the Dash 8 was developed to replace older turboprop aircraft and compete in the regional aviation market. The aircraft is known for its excellent fuel efficiency, versatility, and ability to operate in both short-field and high-altitude environments, making it a popular choice for regional carriers around the world.

The Dash 8 features a range of variants, including the -100, -200, -300, and more recently, the Q-series, which includes modern upgrades such as quieter engines and improved aerodynamics. The Dash 8 family has been widely used by both commercial airlines and cargo operators, offering excellent performance on regional routes with a capacity of up to 78 passengers.

Key Specifications (DHC-8 Dash 8)

• Crew: 2 (Pilot and co-pilot).
• Capacity: Typically 37–78 passengers (depending on variant).
• Length: 19.3 m (63 ft 4 in).
• Wingspan: 19.7 m (64 ft 7 in).
• Height: 7.5 m (24 ft 7 in).
• Max Takeoff Weight (MTOW): 18,000–21,000 kg (39,700–46,000 lb).
• Engines: 2 × Pratt & Whitney Canada PW123 or PW150A turboprop engines (up to 5,000 shp).
• Cruise Speed: ~556 km/h (345 mph).
• Range: ~2,000 km (1,243 miles).
• Ceiling: 7,620 m (25,000 ft).

Notable Features

• Turboprop Efficiency: The Dash 8’s turboprop engines offer better fuel efficiency compared to jet engines, making it ideal for short- to medium-range regional flights where fuel savings are a key factor.
• STOL Capabilities: The Dash 8 can operate on short runways, making it suitable for regional airports with limited infrastructure. Its short takeoff and landing (STOL) abilities are enhanced by large wing flaps and slats.
• Q-Series Variants: The Dash 8 Q-series includes upgraded models featuring quieter engines (the Pratt & Whitney PW150A) that reduce noise pollution, especially useful for urban airports.
• Versatility in Operations: The Dash 8 is capable of carrying passengers, cargo, and performing specialized services like medical evacuations, making it highly versatile.
• Commonality Across Variants: Despite the variations in size and engine power, the Dash 8 family shares a high degree of commonality, making it easier for operators to maintain fleets and train crews across different models.

Operators & Usage

• Regional Airlines: The Dash 8 is widely used by regional airlines around the world, such as Horizon Air, Flybe, and Air Canada Express. Its efficiency and reliability make it a mainstay for carriers operating in regions with shorter flight distances.
• Cargo Operations: In addition to passenger service, many Dash 8 aircraft have been converted for cargo operations, benefiting from their large cargo doors and efficient turboprop engines.
• Government & Special Operations: The Dash 8 is also used by governments and specialized operators for tasks like surveillance, search and rescue, and environmental monitoring.