A range of twin-bladed props for racing monohulls from ECO class electrics through 2.5 to 15cc glow engines. For larger engines, including spark ignition, please see the 14E series (General Purpose) props. Generally these props are intended for submerged drive, but experimentation may reveal other uses. This range is available in aluminium (LM25 grade) bronze AB2 or stainless steel.
The typical thread type for these props is M4. You can specify another thread type, such as Dog drive (not recommended for Aluminium props) if you know exactly what you need. Owing to the difficulty of threading stainless, certain threads may not be available in this material. The reference numbers for this range are: Diameter in mm followed by Pitch to Dia. ratio. Eg. prop ref 3514 has a dia of 35mm and a pitch of 49mm (35 x 1.4).