N6400S - 1999 Hochmuth Harold W RV-4/HARMON Rockt II Aircraft Registration
RV41999 Hochmuth Harold W RV-4/HARMON ROCKT II
Aircraft Description
N6400S is a 1999 Hochmuth Harold W RV-4/HARMON ROCKT II, a single-engine reciprocating (piston) aircraft registered to Lepper Michael in Ward, CO. This aircraft holds a experimental airworthiness certificate issued by the Federal Aviation Administration on December 14, 1999. The registration certificate was issued on September 28, 2020. The registration is set to expire on September 30, 2027. Powered by a Lycoming IO-540 SER engine producing 300 horsepower, N6400S is. The aircraft's Mode S transponder code is A867A4 (hex), used for ADS-B identification and flight tracking. N6400S was last tracked by AviatorDB at coordinates 39.9922, -105.7881 on May 26, 2026. The FAA registry record for N6400S was last updated on March 17, 2023. AviatorDB monitors aircraft positions through ADS-B surveillance data and updates records as new position data is received.
The Van's RV-4 is a high-performance homebuilt aircraft that revolutionized the kit plane industry by bringing fighter-like handling characteristics to civilian aviation. First flown in August 1979, it is a low-wing, single-engine monoplane that seats two in tandem configuration. Powered by a 180-horsepower Lycoming O-360 engine with a gross weight of 1,500 pounds, the RV-4 established Van's Aircraft as the dominant force in experimental aviation with over 1,446 examples completed worldwide by 2022. AviatorDB tracks 1 Hochmuth Harold W aircraft currently registered in the FAA database. The ICAO type designator for this aircraft model is RV4.
AviatorDB has found no NTSB accident or incident reports involving N6400S. AviatorDB cross-references all FAA registration data with NTSB accident and incident reports, providing a comprehensive safety overview for every registered aircraft in the United States.
Registered Owner
Powerplant & Avionics
Additional Details
Last Known Position
Data Source
Data provided by the US Federal Aviation Administration. View on FAA.gov
Last updated: 2026-08-01 01:32:20 UTC