Eachine S.E.5a 378mm Wingspan Balsa Wood RC Airplane With Power SystemIndoor Fly:Two Different Optional Install Ways: (The servo and receiver are not included.)History:The Royal Aircraft Factory S.E.5 was a British biplane fighter aircraft of the First World War.It was designed by Henry Folland、 John Kenworthy and Major Frank Goodden of the Royal Aircraft Factory in Farnborough. It was built around the new 150 hp (112 kW) Hispano-Suiza 8 a V8 engine that、 while providing excellent performance.The S.E.5 entered service with No. 56 Squadron RFC in March 1917、 although the squadron did not deploy to the Western Front until the following month. The S.E.5a is the improved production version、powered by a 200 hp (149 kW) Hispano-Suiza 8b V-8 or 200 hp (149 kW) Wolseley Viper piston engine.About 38 of the late-production Austin-built S.E.5a were assigned to the American Expeditionary Force、 with the 25th Aero Squadron getting its aircraft (mostly armed only with the fuselage-mounted Vickers gun) at the very end of the war.Description:Brand Name: EachineItem Name: S.E.5aMaterial: Balsa woodWingspan: 378mmLength: 302mmFlying Weight: 36-40gCG: 5-10mm after the leading edge of the lower wingEnvironment: Indoors or outdoors in calm weatherBrushed Motor: Double 716 Coreless motorPropeller: 138mmFeatures:Laser Cut Balsa Wood Parts、ultralight takeoff weight plus large wing area、very easy to fly and controlAllow you to build your own flying model from scratchWith little space and very few tools required、 these models can be put together almost anywhereSupport brushed and brushless dual power systemRequired Parts For Brushed System (Not Included):Battery: 3.7V 150-200mAh Lipo、 Click HereServo: 1.7-2gRadio System: 3CHBrushless Power System(Not Included):Brushless Motor: Eachine 1104 4000KV、 Click HereESC: 1S 5A ESCServo: 2* 2.5g servoReceiver: F949 receiver or Hisky HFW400 receiverNote: This version doesn't include the servo、radio system、battery or charger.Install Manual、please Click HereIf you want to buy the Kit version、 please click herePackage Included:1x Eachine S.E.5a 378mm Wingspan Balsa Wood RC Airplane with Power System( Double 716 Coreless motor and 138mm Propeller)