SpecificationsDiameter/Pitch28*9.2inch(711.2mm*233.7mm)WorkingTemp-40ºC~65ºCWeigh(Singlepropeller)98gStorageTemp-10ºC~50ºCMaterialCF+EpoxyStorageHumidity<85%SurfaceTreatmentGlossyOptimumRPM1500-3700RPM/minPropellertype2blades-intergratedThrustLimitation27.5kgWarning(1)Pleasemakesurethatscrewsofcoverplatesandpropellersaremountedproperly(2)Doublecheckthatpropellersareflawless,otherwise,pleasereplacethembeforeflight(3)Fall-offorequivalentimpacttopropellerswillleadtodefromationorcracks,inthiscase,youwillneedreplacethem(4)NEVERaddforceontothepropellersordecomposethepropellers,Anydecompositionwillresultinsafetyissues(5)Forsafety,pleasestayawayfromthespinningpropellers,Specialattentionshouldbepaidtowhenusingpropellers(6)Pleasekeepthepropellersawayfromhostileenvironmentscontainingcorrosivegases,andmaintainstrictcompliaccewithstoragetemperatureandhumidityrequirements,especiallywhenitcomestolong-timestorage