The Skurka Aerospace 200SGL130Q-4 is a dual-function aircraft starter-generator used primarily in helicopter applications (notably Airbus Helicopters / AS350 series and related platforms). It combines two functions in one unit: it acts as an electric starter to crank the engine during start-up, and then transitions into a generator to supply DC electrical power once the engine is running.

This unit is part of the 200SGL series and represents an upgraded configuration of the earlier 200SGL130Q model, incorporating improved cooling, brush design, and internal mechanical refinements for increased durability and service life.

Key features include:

Dual-function starter and generator unit (starter-generator)
24V DC aircraft electrical system compatible
Used in turbine helicopter accessory drive systems (model dependent)
Provides engine start torque and post-start electrical generation
FAA/TSO-qualified aerospace accessory component (application dependent)
Upgraded cooling fan and improved internal brush system (Q-4 revision)
Designed for high-duty-cycle rotorcraft operations
Air-cooled, engine-driven accessory unit
Improved thermal performance over earlier 200SGL130Q version
Commonly used in Airbus Helicopters AS350 family and similar platforms