Heath Avn B4
2 aircraft on the U.S. register carry a Heath Avn B4 engine, rated at about 25 horsepower. The Dickenson BATHTUB is the model most often fitted with it (1 aircraft). The aircraft carrying it were built between 1929 and 2007.
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 Heath Avn B4. FAA spelling: B4.
Fitted to model families
Dickenson BATHTUB · Steimmetz SUPER PARASOL
Where they are owner's state
Kind of aircraft
When the aircraft were built by decade
What the FAA has certified, ordered and been told about the Heath Avn B4 the component layer
The design is held under 1 type certificate (Group 4-3, held by Heath Aviation Company). No FAA order in the current files names this engine series.
Certificates and bulletins
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
- Oregon 1 of these aircraft
- New Hampshire 1 of these aircraft
- Western Antique Aeroplane & Automobile Museum 1 of these aircraft
These connections as data: /graph/engine/heath-avn-b4.json · about the eFlight graph.
Aircraft newest certificates first · 2
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N724K | Steimmetz SUPER PARASOL |
Fixed-wing, single engine | Individual owner New Hampshire |
Experimental | 2021-07-20 | ValidFAA registration status code V: Valid registration. All codes |
| N538 | Dickenson BATHTUB |
Fixed-wing, single engine | Western Antique Aeroplane & Automobile Museum Hood River, Oregon |
Experimental | 2010-01-22 | 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 7, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.