N81KW - 1971 Pitts Special S1C Aircraft Registration

N81KW is a 1971 Pitts Special S1C, a single-engine reciprocating (piston) aircraft registered to Zweigle Zachary J in Redding, CA. This aircraft holds a experimental airworthiness certificate issued by the Federal Aviation Administration on February 4, 2000. The registration certificate was issued on August 8, 2025. The registration is set to expire on August 31, 2032. Powered by a Lycoming 0-145B SERIES engine producing 65 horsepower, N81KW is. The aircraft's Mode S transponder code is AB07F9 (hex), used for ADS-B identification and flight tracking. The FAA registry record for N81KW was last updated on August 8, 2025. AviatorDB monitors aircraft positions through ADS-B surveillance data and updates records as new position data is received.

The Pitts S-12 Macho Stinker represents the pinnacle of aerobatic biplane design, serving as Curtis Pitts' final and most ambitious aircraft creation. First flown in March 1996, it is a large two-seat tandem biplane powered by a 360-horsepower Russian Vedeneyev M14P radial engine. With a 23-foot wingspan and 2,550-pound gross weight, the S-12 was specifically engineered to provide greater range and baggage capacity than previous Pitts designs while maintaining full aerobatic capability. The aircraft was manufactured through plans, kits, and factory-built variants by Jim Kimball Enterprises and later 92nd West Aviation. AviatorDB tracks 50 Pitts Special aircraft currently registered in the FAA database. The ICAO type designator for this aircraft model is PTMS.

AviatorDB has found no NTSB accident or incident reports involving N81KW. 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.