[1] Between 2001 and 2003, new versions of Turna/S was developed with designations Turna-101A, -111B and -201C, featuring roll-damping avionics, aerodynamic packages, improved stability and greater reliability.

[1] Based on experience gained by launches from frigates and sorties in bad weather conditions, a new generation was evaluated under the name Tuna/G.

Intermediate versions such as Turna-303C, -401C, -411C-501D and-502D served for improvements to autonomy, reliability, aerodynamics, lateral and directional stability as well as available volume for modular payloads.

Payloads of the drone are passive radar cross-section enhancer (Luneburg lens), acoustic miss distance indicator (MDI), infrared flares and smoke.

Data link is accomplished by encrypted real-time telemetry, and guidance/tracking takes place fully autonomous based on GPS integrated waypoint navigation system.