Anonymous ID: af13b7 June 25, 2022, 4:10 a.m. No.16511996 🗄️.is 🔗kun >>2054 >>2075 >>16511898 >>16511906 >>16511909 >>16511962 If a drone can stay in the air at 60000ft @ 390kts for 32 hours, how long if speed is less than 30 kts?