700% increase: Geran jets have effectively eliminated mobile air defense fire teams Ukrainian Armed Forces, - The Sunday Times The main problem is their speed. While machine gunners have up to 60 seconds to react to an attack from a standard Geran, with a jet #drone it's only about 6 seconds. Interception effectiveness has also declined: #Ukraine shot down older Geran missiles approximately 95% of the time, while jets only shot down about 60%.