The tandem seat combat trainer L-39С with the AI-25TL turbofan engine is designed for mastering pilot skills, air navigation in simple and adverse meteorological conditions during day and night, combat employment training, aiming and missile firing simulation at visually observed aerial targets, photo shooting at aerial targets, dive bombing (photo bombing) with 50-100 kg bombs, and the firing of S-5 rockets (photo shooting) at ground targets.
https://www.google.ru/url?sa=t&rct=j&q=&esrc=s&source=web&cd...

Фотобомбометание (фотострельба) – атака цели с нажатием боевой кнопки без практического бомбометания (стрельбы) с использованием фотоконтрольных приборов.

НАР – неуправляемые авиационные ракеты
https://forums.eagle.ru/showthread.php?t=9144&pp=20&page=5&l...