12730-1700 KV: 1700 , Voltage: 7.4v ,  Prop: 8x3.8 , Current: 8.4A , Speed: 7600rpm , Pull: 400g , Max current＜60s : 9.2A , Application: indoor miniplane 2) 2730-1300 KV: 1300 , Voltage: 11.1v ,  Prop: 8x3.8, Current: 9.4A , Speed: 6800rpm , Pull: 340g , Max current＜60s : 10A , Application: indoor miniplane