คุณสมบัติประเภทอากาศยาน (Type Rating) (Type Rating)

What Is a Type Rating?

A type rating is an additional certification endorsed on a pilot's airline transport pilot licence (ATPL) that authorizes operation of a specific aircraft type—or family of types—that has been determined by the certifying authority to require specialized training beyond a basic pilot licence. Type ratings are required for aircraft that are turbojet-powered, have a maximum certificated takeoff weight exceeding 5,700 kg (12,500 lb), or have characteristics that require specific training. The rating is closely linked to the aircraft's type certificate and the complexity of its cockpit and systems.

How It Works

Obtaining a type rating involves a structured training programme typically conducted by an approved type rating training organization (TRTO) and consists of:

• Ground school: Intensive systems training covering hydraulics, electrics, pneumatics, fly-by-wire computers, and emergency procedures for the specific aircraft.
• Full-flight simulator (FFS): Level D simulators replicate the exact glass cockpit and motion cues of the type; most type rating courses are conducted entirely in the simulator without real aircraft flying.
• Base training (if required): Touch-and-go landings in the actual aircraft where simulator-only certification is not permitted by the authority.
• Line training: Supervised revenue flying with an experienced training captain before the pilot operates unsupervised.
• Recurrency: Operators conduct simulator checks every 6–12 months to maintain currency.

Applications in Aviation

Airlines issue type ratings for each major fleet type: Airbus A320 family, A330, A350; Boeing 737 (all variants share one rating), 777, 787. Crucially, Airbus designed the A320, A330, A340, A350, and A380 with a Common Type Rating concept—pilots transitioning between types need only a differences course rather than a full new type rating, saving airlines significant training costs. Boeing similarly offers cross-crew qualification (CCQ) between the 757 and 767. The A380 type rating is particularly demanding due to the aircraft's size and unique systems, requiring additional simulator hours. Budget airline training programmes now offer "ab initio to type rating" pathways taking cadets from zero hours to commercial co-pilot status on a specific type.

Future Developments

Increasing automation and synthetic training are reshaping type rating requirements. Evidence-Based Training (EBT), adopted by EASA and ICAO, shifts from fixed maneuver lists to competency-based assessment tailored to individual pilot performance data. Virtual reality (VR) cockpit trainers are being validated as supplements to Level D simulators for certain procedures, potentially reducing training costs. As urban air mobility vehicles enter service, new type rating frameworks will be needed for autonomous and semi-autonomous air taxis operating under novel certification categories that do not map neatly to existing ATPL structures.