T 155 Fırtına Wikipedia
T 155 Fırtına Turkish for Storm is a Turkish variant of K9 Thunder 155 mm self propelled howitzer co developed with South Korea utilizing Turkish technology and design into existing K9 Thunder It is manufactured and assembled by Turkish Land Forces at the 1010th Army Equipment Repair Factory using imported subsystems from Korea It has an ongoing upgrade project dubbed as T 155 Fırtına