Category XIX
Gas Turbine Engines and Associated Equipment
Paragraphs marked SME are Significant Military Equipment.
| Paragraph | Text |
|---|---|
| (a) | Turbofan and Turbojet engines (including those that are technology demonstrators, developmental engines, or variable cycle engines) capable of 15,000 lbf (66.7 kN) of thrust or greater that have any of the following: SME |
| (1) | With or specially designed for thrust augmentation (afterburner); |
| (2) | Thrust or exhaust nozzle vectoring; |
| (3) | Parts or components controlled in paragraph (f)(6) of this category; |
| (4) | Specially designed for sustained 30 second inverted flight or negative g maneuver; or |
| (5) | Specially designed for high power extraction (greater than 50 percent of engine thrust at altitude) at altitudes greater than 50,000 feet. |
| (b) | Turboshaft and Turboprop engines (including those that are technology demonstrators or developmental engines) that have any of the following: SME |
| (1) | Capable of 2000 mechanical shp (1491 kW) or greater and specially designed with oil sump sealing when the engine is in the vertical position; or |
| (2) | Capable of a specific power of 225 shp/(lbm/sec) or greater and specially designed for armament gas ingestion and non-civil transient maneuvers, where specific power is defined as maximum takeoff shaft horsepower (shp) divided by compressor inlet flow (lbm/sec). |
| (c) | Gas turbine engines (including technology demonstrators, developmental engines, and variable cycle engines) specially designed for unmanned aerial vehicle systems controlled in this subchapter, cruise missiles, or target drones (MT if for an engine used in an aircraft, excluding manned aircraft, or missile that has a “range” equal to or greater than 300 km). SME |
| (d) | The following engines: SME |
| (1) | AGT1500, CTS800, GE38, GE3000, HPW3000, MT7, T55, T408, or T700; or |
| (2) | XT900. |
| (e) | Digital engine control systems (e.g., Full Authority Digital Engine Controls (FADEC) and Digital Electronic Engine Controls (DEEC)) specially designed for gas turbine engines controlled in this category (MT if the digital engine control system is for an aircraft, excluding manned aircraft, or missile that has a range equal to or greater than 300 km). SME |
| (f) | Parts, components, accessories, attachments, associated equipment, and systems as follows: |
| (1) | Parts, components, accessories, and attachments specially designed for the engines listed within paragraph (f)(1)(i) or (ii) of this category, excluding those common to engines that are or were in production that are not listed within paragraphs (f)(1)(i) through (iii) of this category, as follows: |
| (i) | F101, F107, F112, F118, F119, F120, F135, F136, F414, F415, J402, T901, XA100, XA101, XA102, and XA103; and military variants thereof; |
| (ii) | Engines described in paragraph (d)(2) of this category; or |
| (2) | Hot section parts and components (i.e., combustion chambers and liners, and related cooled structures; high pressure turbine blades, vanes, disks, and related cooled structures; cooled intermediate pressure turbine blades, vanes, disks, and related cooled structures; cooled low pressure turbine blades, vanes, disks, and related cooled structures; cooled shaft-driving power turbine blades, vanes, disks, and related cooled structures; cooled augmenters; and cooled nozzles) specially designed for gas turbine engines controlled in this category; SME |
| (3) | Uncooled turbine blades, vanes, disks, and tip shrouds specially designed for gas turbine engines controlled in this category; |
| (4) | Combustor cowls, diffusers, domes, and shells specially designed for gas turbine engines controlled in this category; |
| (5) | Engine monitoring systems (i.e., prognostics, diagnostics, and health) specially designed for gas turbine engines and components controlled in this category; |
| (6) | Any part, component, accessory, attachment, equipment, or system that: SME |
| (i) | Is classified; |
| (ii) | Contains classified software directly related to defense articles in this subchapter or 600 series items subject to the EAR; or |
| (7) | Investment casting cores, core dies, or wax pattern dies for parts or components enumerated in paragraphs (f)(1), (f)(2), or (f)(3) of this category; |
| (8) | Pressure gain combustors specially designed for engines controlled in this category, and specially designed parts and components therefor; |
| (9) | Three-stream fan systems, specially designed for gas turbine engines controlled in this Category, that allow the movement of airflow between the streams to control fan pressure ratio or bypass ratio (by means other than use of fan corrected speed or the primary nozzle area to change the fan pressure ratio or bypass ratio), and specially designed parts, components, accessories, and attachments therefor; |
| (10) | High pressure compressors, specially designed for gas turbine engines controlled in this Category, with core-driven bypass streams that have a pressure ratio greater than one, occurring across any section of the bypass duct, and specially designed parts, components, accessories, and attachments therefor; |
| (11) | Intermediate compressors of a three-spool compression system, specially designed for gas turbine engines controlled in this Category, with an intermediate spool-driven bypass stream that has a pressure ratio greater than one, occurring across any section of the bypass duct, and specially designed parts, components, accessories, and attachments therefor; or |
| (12) | Any of the following equipment if specially designed for a defense article described in paragraph (f)(1): Jigs, locating fixtures, templates, gauges, molds, dies, caul plates, or bellmouths. |
| (g) | Technical data (see § 120.33 of this subchapter) and defense services (see § 120.32 of this subchapter) directly related to the defense articles described in paragraphs (a) through (f) of this category and classified technical data directly related to items controlled in ECCNs 9A619, 9B619, 9C619, and 9D619 and defense services using the classified technical data. (See § 125.4 of this subchapter for exemptions.) (MT for technical data and defense services related to articles designated as such.) |
| (h) | -(w) [Reserved] |
| (x) | Commodities, software, and technology subject to the EAR used in or with defense articles controlled in this category. |
Source: eCFR, version
2026-08-01, retrieved
2026-08-20T04:08:36+00:00.