Rocket 40 S/L Aluminum Water Cooling Jacket for 4074 4082 4092 RC Boat Brushless Motor Size 4:40-S Built-in Positioning Sensor: GPS/Optical Flow/Barometer/Sound

Built-in Positioning Sensor: GPS/Optical Flow/Barometer/Sound Wave

Brushless ESC: 20A-40A

Shrapnel is specially treated with beryllium copper

1 x Flight Cotnroller

Option introduction: B-WiFi Control means that the color of tank chassis is black

Rocket 40 S/L Aluminum Water Cooling Jacket for 4074 4082 4092 RC Boat Brushless Motor Size 4:40-S Built-in Positioning Sensor: GPS/Optical Flow/Barometer/SoundDescription: Item Brand: Rocket Item Number: 40 S,40 L(optional) Item Name: Water cooling jacket Material: Aluminum Color: Black Product Size: Hole Diameter: 4. 5mm Jacket inner outer diameter: 40 mm 48 mm Jacket Length: 56 mm (40 S) 71mm (40 L) Product Weight: About 47g Packaging Weight: Approx. 78g Fit For: 40 S: 4074 4082 rc boat brushless motor 40 L: 4092 rc boat brushless motor Package included: 1X Water Cooling Jacket