Türkiye unveils next-gen twin-barrel naval cannon at IDEF 2025 in Istanbul VIDEO

The THUNDERBOLT 40/70 T, a double-barreled national naval gun developed by Bursa-based ERMAKSAN, will be showcased at the IDEF-2025 International Defence Industry Exhibition in Istanbul.

According to Savunma Hattı’s social media page, the project was executed under a strategic cooperation agreement with Türkiye’s Ministry of National Defence and was produced with 100% domestic content, Caliber.Az reports.

💢 Türkiye'nin Yerli Çift Namlulu Deniz Topu THUNDERBOLT Sahneye Çıkıyor

Türkiye'nin savunma sanayiindeki yerli üretim hamleleri hız kesmeden sürerken, yerli imkânlarla geliştirilen ilk çift namlulu deniz topu THUNDERBOLT 40/70 T, Uluslararası Savunma Sanayii Fuarı (IDEF)… pic.twitter.com/EfHUZ8T1tH

— Savunma Hattı (@savunmahatti_) July 22, 2025

Designed specifically to meet the operational needs of the Turkish Navy, the system aims to eliminate reliance on imported weapon systems and end foreign dependency. The entire gun, including spare parts, is manufactured domestically, providing a sustainable and cost-effective defence solution.

ERMAKSAN Chairman Erol Özkayan announced the successful completion of initial firing tests, highlighting the system’s naval capabilities: “Thanks to its twin-barrel design, our gun achieves a combined firing rate of 600 rounds per minute, with each barrel capable of firing 300 rounds independently. It offers high manoeuvrability, a maximum firing range of 12,500 meters, and 360-degree horizontal targeting.”

The 17th International Defence Industry Fair (IDEF 2025) officially opened on July 22 in Istanbul, drawing more than 1,000 high-level foreign delegates, including heads of state, senior military officials, and defence ministers.

Defence and aerospace companies from 44 countries are presenting over 400 advanced products across land, air, sea, and cyber domains. This year’s exhibition is notable not only for its size but also for the wide range of innovations on display, reflecting the rapid development of global military technologies.

By Tamilla Hasanova