The U.S. aircraft register, updated daily
Engines · piston (reciprocating) · data as of October 27, 2026

Wright Ww J4-B

1 aircraft on the U.S. register carry a Wright Ww J4-B engine, rated at about 102 horsepower. The Laird WHIRLWIND 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 Wright Ww J4-B. FAA spelling: J4-B.

Fitted to model families

Laird WHIRLWIND1
Model families, as a table
aircraft
Laird WHIRLWIND1

Laird WHIRLWIND

Where they are owner's state

Minnesota1
By state, as a table
aircraft
Minnesota1

Kind of aircraft

Piston singles1 (100%)
By kind, as a table
aircraftshare
Piston singles1100%

When the aircraft were built by decade

0001111920
By decade built, as a table
aircraft
19201

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

Where they are
Analytics

The whole map of how records connect · these connections as data: /graph/engine/wright-ww-j4-b.json.

Aircraft newest certificates first · 1

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N110 Laird
WHIRLWIND
 Fixed-wing, single engine Individual owner
Minnesota
 Standard 2024-09-02 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 27, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.