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Grumman G-21A · Casper, WY
N4575C is a Grumman G-21A (serial B-120), registered to Southern Aircraft Consultancy Inc Trustee (corporation) in Casper, WY. Its FAA registration is recorded as v and expires February 2033; the airworthiness certificate dates from December 1983 (42 years ago). It carries 2 P&W R-985 SERIES engines rated at 450 hp each (900 hp total), the engine on 90% of registered Grumman G-21As. Its Mode-S transponder broadcasts the ICAO 24-bit address A58F27. It is one of 34 Grumman G-21A aircraft on the FAA registry. Southern Aircraft Consultancy Inc Trustee holds 517 aircraft on the registry.
Source: FAA aircraft registry (public record). Community reviews and photos below.
28 of the 31 registered Grumman G-21A carry this engine (90%), across 4 engine variants on the type.
Source: FAA engine reference (ENGINE.txt), matched on this registration's engine code.
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Commonly available reference sources for the Grumman G-21A. Always confirm against the manufacturer's current, authoritative publication for your specific aircraft.
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