N4DH - 1946 Beech D18S Aircraft Registration

N4DH is a 1946 Beech D18S, a twin-engine reciprocating (piston) aircraft registered to Glenn L Martin Maryland Aviation Museum in Baltimore, MD. This aircraft holds a standard airworthiness certificate issued by the Federal Aviation Administration on January 5, 1973. The registration certificate was issued on March 13, 2014. The registration is set to expire on March 31, 2027. Powered by a Lycoming TIGO-541SER engine producing 400 horsepower, N4DH is. The aircraft's Mode S transponder code is A4A842 (hex), used for ADS-B identification and flight tracking. The FAA registry record for N4DH was last updated on January 22, 2023. AviatorDB monitors aircraft positions through ADS-B surveillance data and updates records as new position data is received.

The Beechcraft Model 18, known as the "Twin Beech," holds the record for the longest continuous production run of any piston-engine aircraft in aviation history. First flown on January 15, 1937, it was a low-wing twin-engine monoplane that could carry six to eight passengers or equivalent cargo loads. Spanning 32 years of production with over 9,000 aircraft built in 32 variations, it measured just over 35 feet in length with twin Pratt & Whitney Wasp Jr. radial engines. The aircraft was manufactured by Beech Aircraft Corporation of Wichita, Kansas. AviatorDB tracks 18,376 Beech aircraft currently registered in the FAA database. The ICAO type designator for this aircraft model is BE18.

AviatorDB has found no NTSB accident or incident reports involving N4DH. 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.