Menasco PIRATE D4-87
1 aircraft on the U.S. register carry a Menasco PIRATE D4-87 engine, rated at about 125 horsepower. The Ryan Aircraft STM-2 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 Menasco PIRATE D4-87. FAA spelling: PIRATE D4-87.
Fitted to model families
Model families, as a table
| aircraft | |
|---|---|
| Ryan Aircraft STM-2 | 1 |
Ryan Aircraft STM-2
What the FAA has certified, ordered and been told about the Menasco PIRATE D4-87 the component layer
The design is held under 1 type certificate (TC 67, held by Menasco Manufacturing CO.). 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
- California 1 of these aircraft
The whole map of how records connect · these connections as data: /graph/engine/menasco-pirate-d4-87.json.
Aircraft newest certificates first · 1
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.