A new level of horror is unfolding over the skies of Ukraine. Waves of new jet-powered Russian drones are screaming towards cities at hundreds of kilometres per hour, slamming into bridges and buildings in broad daylight. They fly faster, higher and are harder to shoot down than previous models, and Ukraine's defences are struggling to keep up. The weapons are the latest evolution of cheap, one-way attack drones used extensively throughout the war. Until now, the propeller-driven Geran-2 has been Russia's main weapon of choice for mass long-range drone attacks. Based on the Iranian-designed Shahed-136 with its distinctive 3.5-metre triangular frame, the drones travel at about 185km/h. Carrying a 50kg warhead behind an aerodynamic nose, they dive at targets and explode on impact in kamikaze-style strikes. Ukraine pioneered defences against propeller-style drones which worked against 90 per cent of the older Shahed technology. So, Russia responded with jet power. The original Geran-4 has a Chinese-made turbojet engine, allowing it to travel nearly three times faster than its predecessors. The airframe has been reinforced to carry explosives nearly double the weight and withstand the engine's power. The new Geran-5 blurs the lines between drone and cruise missile. It is also jet-powered,...

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