Harmon Rocket II for Sale — The 200-mph Homebuilt Rocket
The Harmon Rocket II is a high-performance single-seat homebuilt aircraft derived from the Van's RV-4 design but substantially modified to accept the 260-horsepower Lycoming IO-540 engine — a power-to-weight combination that produces one of the fastest single-seat piston aircraft in the homebuilt category, with cruise speeds exceeding 200 mph and climb rates that rival purpose-built aerobatic aircraft. The Rocket II's lineage from the Van's RV family gives it the proven structural engineering and aerodynamic efficiency of that respected design while the powerful IO-540 installation transforms its performance into territory that few homebuilts inhabit.
Performance and Character
The Harmon Rocket II's IO-540 producing 260 horsepower in an airframe weighing approximately 1,000 lbs empty creates a power loading that demands respect and rewards precise piloting. Roll rates are impressive, the aircraft climbs at angles that attract attention, and cruise speeds consistently exceed 200 mph on typical fuel consumption. This is not a casual aircraft — it demands experienced pilots with appropriate type-specific training and the discipline to fly it conservatively until thoroughly familiar with its characteristics. For pilots who have achieved that familiarity, the Harmon Rocket II provides a flying experience available from no other sub-$100,000 aircraft.
Find Your Harmon Rocket II on Airplane Trade
Browse Harmon Rocket II aircraft for sale on Airplane Trade from verified sellers worldwide. High-performance 260 hp homebuilt with complete builder documentation and IO-540 engine records. Connect with sellers who understand this extraordinary aircraft's performance and operational demands.