The type segment of Hydraulic Thrust Reverser Actuation System differentiates products by mechanical architecture and control methodology, shaping the overall market valuation. Primary‑type actuators, which employ a direct hydraulic piston‑rod arrangement, capture the majority share due to their proven reliability and straightforward integration into existing airframe designs. Secondary‑type systems, incorporating lever‑based amplification mechanisms, hold a smaller but growing niche, especially in retrofits where space constraints limit primary actuator deployment. Electro‑hydraulic hybrids, blending electronic control with hydraulic power, are emerging as a distinct category, offering enhanced precision and diagnostics while commanding a premium price point. Lastly, modular‑type solutions—designed for rapid replacement and scalability—serve maintenance‑focused operators seeking reduced aircraft downtime. The distribution of these types directly impacts total market size, as each carries unique cost structures, certification pathways, and lifecycle service requirements that collectively shape demand across the application spectrum.