Specification Item No 318Item Name Transport Helicopter Engine ModelOuter diameter of cylinder 36MMInner diameter of cylinder 21MMLength of cylinder 51MMStroke 27MMDimensions 210MM long 100MM wide rotor folded 140MM highPackaging size 190MM long 110MM wide 140MM highSpeed range minimum 300 maximum 1000 continuous operation time is 20 minutes Weight Net weight 0 55KG including packaging 0 6KGMaterial of fuselage anodized aluminum alloy stainless steelAccessory material stainless steel copperCylinder material tin bronzeRotor stainless steelFuel 95 alcoholCooling method forced air coolingLubrication method drip lubrication add 0 5ml of the specified lubricating oil from the fire suction port with a syringe add once at start up and add once every 20 minutes of operation Lubricating oil special engine oil for Saihu model kinematic viscosity 50℃ mm2 s 6 10 GB T265Maintenance Maintenance without disassembly use a syringe to add alcohol from the fire suction port clean the cylinder with the waves flywheel and pour it out clean it twice and add lubricating oil note the hot engine cannot be cleaned to avoid alcohol spraying and scalding Operation instructions 1 Assemble the rotor put the rotor into the main shaft and tighten the top screw 2 Assemble the base foot cup3 Add alcohol tear off the seal of the alcohol lamp and add 95 concentration of alcohol fill it to 3 2 of the alcohol lamp and cover the lamp cover 4 Use a syringe to inh