ASELSAN has announced the test firing of the GÖKTAN ground launch system for TOLUN SDB, developed in cooperation with DeltaV for the rocket booster.
TOLUN SDB, launched by the GÖKTAN system on the 18th of February 2025, successfully hit the target in the test.
GÖKTAN system includes the rocket booster developed by DeltaV, known for its hybrid fuel rockets, command & control system, and fire control system.
GÖKTAN developed to launch TOLUN SDBs from the surface, consists of a rocket booster and jettisoning system that separates TOLUN from the booster at the end of the boost phase.
The new munition in the launch state is estimated to be slightly larger than 300 mm in diameter and about 6.5 meters in length. For comparison, GÖKTAN’s U.S.-made counterpart, GLSDB, combines a 227 mm M26 rocket motor with the GBU-39/B SDB (A direct counterpart to TOLUN), which measures 3.91 meters in length. GLSDB has a firing range between 90 km and 150 km, depending on target orientation relative to the launch direction.
GÖKTAN can be expected to have a longer range than GLSDB thanks to a significantly larger booster, aside from the fact that a different type of rocket motor is used in terms of fuel type, which might be more efficient in terms of energy output upon combustion.
The ground-launched guided bomb can be launched from an angled position and offers a 360-degree engagement envelope thanks to TOLUN’s gliding trajectory. Multiple targets can be engaged at a time with salvo capability.
From an operational standpoint, GÖKTAN’s range, TOLUN’s existing precision, resistance to GNSS jamming, and structure penetration capabilities offer a new kind of precision strike weapon as an alternative to conventional artillery rockets.
