Registry / Grumman / G-21A / N121SR

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N121SR V

Grumman G-21A · 1940 · Middletown, DE

FAA Registry ↗ FlightAware ↗ FlightRadar24 ↗ ADS-B Globe ↗

This aircraft — FAA registration facts

N121SR is a 1940 Grumman G-21A (serial 1084), registered to Stick And Rudder Aviation Inc (corporation) in Middletown, DE. Its FAA registration is recorded as v and expires April 2028; the airworthiness certificate dates from June 2009 (17 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 A05909. It is one of 34 Grumman G-21A aircraft on the FAA registry.

Registered owner
Stick And Rudder Aviation Inc
Owner type
Corporation
Based in
Middletown, DE
Serial number
1084
Year built
1940 · 86 yrs old
Airworthiness class
Standard – Normal
FAA status
V
Mode-S / ICAO24
A05909 · 50054411 octal
Certificate issued
Apr 14, 2012
Airworthiness date
Jun 1, 2009
Last FAA activity
May 5, 2023
Registration expires
Apr 30, 2028
FAA region
1

Source: FAA aircraft registry (public record). Community reviews and photos below.

Engine on this aircraft

Engine
P&W R-985 SERIES
Engine type
Reciprocating (Piston)
Rated power
450 hp × 2 (900 hp total)
Power per seat
113 hp
FAA engine code
52008

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.

Community facts about N121SR

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Flight history & live tracking

ICAO24: a05909
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Aircraft Type — ACFTREF 3951204

Grumman G-21A
Engines: 2
Type: piston
Seats: 8
Cruise: 130 KTAS
Category: Experimental

Engine — CODE 52008

Manufacturer: P&W
Model: R-985 SERIES
Type: Reciprocating (Piston)
Horsepower: 450 HP

FAA Registration Record

N-Number: N121SR
Serial Number: 1084
Year Manufactured: 1940
ACFTREF Code: 3951204
Engine Code: 52008
Status: V (V)
Certification: Standard – Normal
Type Aircraft: Fixed Wing Multi Engine (5)
Type Engine: Reciprocating (Piston) (1)
Source: master

Documents & resources

Commonly available reference sources for the Grumman G-21A. Always confirm against the manufacturer's current, authoritative publication for your specific aircraft.

View the Grumman G-21A model overview, reviews & photos →

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.

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Transponder / ADS-B

Mode S (octal): 50054411
ICAO 24-bit (hex): A05909
ADS-B Exchange ↗ | FlightAware ↗

Registrant

Stick And Rudder Aviation Inc
Corporation
1232 Choptank Rd
Middletown, DE, 197099038
FAA Region: 1

Key Dates

Certificate Issued Apr 14, 2012
Airworthiness Jun 1, 2009
Expiration Apr 30, 2028
Last Activity May 5, 2023
Data as of Sep 7, 2026

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