Claim ownership to earn the Verified Owner badge on your reviews and to reply to other pilots' feedback.
Grumman G-21A · 1951 · Hudson, MA
N985R is a 1951 Grumman G-21A (serial B-86), registered to Collings Foundation Inc Dba (corporation) in Hudson, MA. Its FAA registration is recorded as v and expires December 2029; the airworthiness certificate dates from June 1954 (72 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 ADBF2E. It is one of 34 Grumman G-21A aircraft on the FAA registry. Collings Foundation Inc Dba holds 16 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.
Reported by pilots, owners and enthusiasts — community-reported and admin-checked before they publish. Always verify anything important against the aircraft's records.
Be the first to share what you know about N985R.
Help other pilots, buyers and curious aviators. Reviews appear after a quick admin check.
Own N985R? Claim ownership to earn the Verified Owner badge on your reviews and to reply to other pilots' feedback.
Commonly available reference sources for the Grumman G-21A. Always confirm against the manufacturer's current, authoritative publication for your specific aircraft.
These are commonly available reference sources. FerryFlight Hub does not provide sample or generated documents on this page.
FerryFlight Hub is independent and not affiliated with, endorsed by, or sponsored by any aircraft manufacturer, the FAA, or any document publisher. References are NOT for operational, navigational, or flight-planning use — always rely on the current, FAA-approved documentation for the specific aircraft. We link to official or publicly available sources and do not host or redistribute copyrighted material. Provided "as is," without warranty of any kind as to accuracy, completeness, or currency.
Report a problem with this document (wrong fitment, outdated, or copyright / takedown) · Full document policy
Calculate density altitude, takeoff roll, and climb performance for a Grumman G-21A at any airport.
Airport Performance CalculatorPre-filled with G-21A performance data
FerryFlight connects you with experienced ferry pilots for domestic and international delivery flights.
Get a Quote