The U.S. aircraft register, updated daily
Engines · piston (reciprocating) · data as of October 8, 2026

Franklin O-425-1

1 aircraft on the U.S. register carry a Franklin O-425-1 engine, rated at about 285 horsepower. The Consolidated Vultee/Hops L-13 is the model most often fitted with it (1 aircraft).

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 Franklin O-425-1. FAA spelling: 0-425-1.

Where they are owner's state

By state, as a table
aircraft
Minnesota1

Kind of aircraft

By kind, as a table
aircraftshare
Piston singles1100%

When the aircraft were built by decade

0001111940
By decade built, as a table
aircraft
19401

What the FAA has certified, ordered and been told about the Franklin O-425-1 the component layer

The design is held under 1 type certificate (5E-13, held by Franklin Engine Company). No FAA order in the current files names this engine series.

Certificates and bulletins

5E-13Type certificate held by Franklin Engine Company · 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

The whole map of how records connect · these connections as data: /graph/engine/franklin-o-425-1.json.

Aircraft newest certificates first · 1

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N6615C Consolidated Vultee/Hops
L-13A
Fixed-wing, single engine L-13 LLC
Blaine, Minnesota
Experimental 2004-04-21 ValidFAA registration status code V: Valid registration. All codes

Source: FAA Civil Aviation Registry, Releasable Aircraft Database (the engine reference table and each aircraft's engine code), October 8, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.