Engines · two-cycle piston · data as of October 27, 2026

Power 4 Fl B29I

2 aircraft on the U.S. register carry a Power 4 Fl B29I engine, rated at about 2 horsepower. The Latitude Engineering HQ-40 is the model most often fitted with it (2 aircraft). The aircraft carrying it were built between 2015 and 2016.

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 Power 4 Fl B29I. FAA spelling: B29I.

Fitted to model families

Latitude Engineering HQ-402

Model families, as a table

	aircraft
Latitude Engineering HQ-40	2

Latitude Engineering HQ-40

Where they are owner's state

Arizona2

By state, as a table

	aircraft
Arizona	2

Kind of aircraft

Drones2 (100%)

By kind, as a table

	aircraft	share
Drones	2	100%

When the aircraft were built by decade

By decade built, as a table

	aircraft
2010	2

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

Where they are

Arizona 2 of these aircraft

Analytics

The whole map of how records connect · these connections as data: /graph/engine/power-4-fl-b29i.json.

Aircraft newest certificates first · 2

Tail no.	Maker and model	Group	Owner and base	Certificate	Registered	Status
N403BN	Latitude Engineering HQ-40	Defense drones	Latitude Engineering LLC Tucson, Arizona	Experimental	2016-03-01	Valid
N402BN	Latitude Engineering HQ-40	Defense drones	Latitude Engineering LLC Tucson, Arizona	Experimental	2016-02-17	Valid

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.