Russia Launches Mass Piston-Nagin UAVs In Ukraine Between November 1 and 2, Russian forces fielded a large number of standard Geran drones alongside jet versions. Data from the receiving side recorded 326 drones between 06:30 and 19:00 on November 1, with only 55 engines. The change in ratio probably reflects cumulative stocks of piston-engine models. Although the low flight speeds pose challenges, these drones remain effective due to their long range, low cost, and suitability for mass application. Six Bandarul missiles were also reported. @Slavyangrad.