●Apply to 50 size helicopters, according to the strength character of 50 engine to design, features the highest air exhaust volume on the market.
●Great design and test to three spaces: expansion chamber, accelerated section, silencer chamber, high efficiency and the quick respond of medium speed and high speed, great for 3D flying.
●Size:Φ41.2 x 270 x 70.5mm
●Pressure nipple x1
●Tube stopper x1(Φ13xΦ16x18.5mm)
●exhaust guide x1(Φ16.5x79.75mm)
●Collar screw x2(M3x35mm)
●Spring Washer x2