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Türkiye introduces Gürhan hybrid 155mm self-propelled howitzer for export market
Türkiye introduces Gürhan hybrid 155mm self-propelled howitzer for export marketarmyrecognition.com
This configuration allows the Gürhan to achieve operational flexibility and improves overall system performance, while maintaining the same key specifications as the baseline Firtina.
It could be that Firtina-II will get the same treatment, but for now Gürhan does seem to be just an Firtina-I with hybrid.