A comprehensive review of official aviation registries, including ICAO Doc 8643 and FAA type-designator records, confirms that no aircraft named "Nighthawk" is associated with the ICAO type code NG. The data indicates a fundamental mismatch between the requested aircraft name and the provided type designator. According to ICAO's official aircraft type designator document, the code NG is specifically assigned to the Kolb Flyer SS, which is classified as a light, single-engine piston landplane (L1P). This identification is corroborated by independent aviation databases such as Aviation Codes and Skybrary, both of which link the NG code exclusively to the Kolb Flyer SS rather than any aircraft designated as a "Nighthawk."
In contrast, the widely recognized stealth aircraft known as the Lockheed F-117 Nighthawk is assigned the ICAO type designator F117. Because the requested combination of the name "Nighthawk" and the code "NG" does not exist in official records, there is no verifiable production history, manufacturer data, design specification, or operational record for such a specific entity. Specifically, there are no documented production years, number of units built, or manufacturing locations for a "Nighthawk (NG)."
Furthermore, no engine specifications, designer credits, or first flight dates exist for an aircraft matching this specific name and code combination. There is no evidence of military or civil service for a "Nighthawk" under the NG designator, as the Lockheed F-117 (the actual Nighthawk) operated under the F117 code. Because this specific entity is not recognized in authoritative aerospace registries, all technical specifications—including dimensions, performance metrics, and crew capacity—remain unknown. In summary, while the Kolb Flyer SS uses the NG code and the Lockheed F-117 uses the Nighthawk name, no single aircraft integrates both the name "Nighthawk" and the ICAO code "NG."