The U.S. aircraft register, updated daily
Engines · piston (reciprocating) · data as of November 6, 2026

Jacobs L3

4 aircraft on the U.S. register carry a Jacobs L3 engine, rated at about 55 horsepower. The Spartan C2-60 is the model most often fitted with it (2 aircraft). The aircraft carrying it were built between 1931 and 1996.

The FAA records engines by code, usually at the level of a series ("O-320 series") rather than the exact variant; this page gathers every FAA code that reads as Jacobs L3. FAA spelling: L3.

Fuel: 100LL avgas.

Fitted to model families

Model families, as a table
aircraft
Spartan C2-602
Cessna 1951
Classic Aircraft Corp WACO YMF1

Spartan C2-60 · Cessna 195 · Classic Aircraft Corp WACO YMF

Where they are owner's state

By state, as a table
aircraft
Texas1
Oregon1
Iowa1
California1

Kind of aircraft

By kind, as a table
aircraftshare
Piston singles4100%

When the aircraft were built by decade

By decade built, as a table
aircraft
19302
19501
19901

What the FAA has certified, ordered and been told about the Jacobs L3 the component layer

The design is held under 1 type certificate (ATC 75, held by Jacobs Aircraft Engine CO.). No FAA order in the current files names this engine series.

Approved replacement parts 1 parts manufacturer approvals

Parts a company other than the maker may make for this engine and sell as FAA-approved. The companies holding the most:

Certificates and bulletins

ATC 75Type certificate held by Jacobs Aircraft Engine CO. · 1 model listed

Sources: the FAA's type certificate data sheets, airworthiness directives, supplemental type certificates, special conditions and special airworthiness information bulletins (Dynamic Regulatory System), and the FAA's service difficulty reports. A failure report is what an operator or repair station chose to file; the counts show reporting as much as reliability, and larger and commercial fleets report more. How the systems are grouped.

Connections how this engine series links to the rest of the register

Fitted to
Where they are
Biggest operators

The whole map of how records connect · these connections as data: /graph/engine/jacobs-l3.json.

Aircraft newest certificates first · 4

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N11016 Spartan
C2-60
Fixed-wing, single engine Western Antique Aeroplane & Automobile Museum
Hood River, Oregon
Standard 2024-03-05 ValidFAA registration status code V: Valid registration. All codes
N569W Classic Aircraft Corp
WACO YMF
Fixed-wing, single engine Khn Air LLC
Carmel, California
Standard 2023-11-18 ValidFAA registration status code V: Valid registration. All codes
N9823A Cessna
195A
Fixed-wing, single engine Individual owner
Texas
Standard 1994-05-17 ValidFAA registration status code V: Valid registration. All codes
N11904 Spartan
C2-60
Fixed-wing, single engine Individual owner
Iowa
Standard PendingFAA registration status code R: Registration pending. All codes

Source: FAA Civil Aviation Registry, Releasable Aircraft Database (the engine reference table and each aircraft's engine code), November 6, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.