Key Upgrades & Features: 1. Reinforced Solid Tail Fin Enhances structural durability and crash resistance, ensuring reliability even in demanding conditions. Following the enthusiastic reception from pilots around the world for the original Steam AK420 Pro, known for its outstanding performance-to-price ratio, our HeliDirect team is proud to introduce the AK420 HDX – a refined and enhanced evolution of the beloved 420-class helicopter kit.
eBay