Select desired diameter and pitch from list above. Standard (tractor) and reverse (pusher) sizes available. APC thin electric E-Series props offer high efficiency and great value for your electric powered models. The center hole of the prop is designed to accept an optional reducing bushing to fit the propeller shaft. Included with the propeller are bushings to fit the following sizes: 5-7" props: 5mm and 3/16" 8"+ props: 1/8″, 4mm, 5mm, 6mm, 5/16″ All sizes except 22" diameter props feature a 1/4" shaft diameter hole. The 22" diameter sizes have a 5/16" shaft diameter hole. The 15x7E-T uses a T-Motor style mounting hub (M3 on 12mm centers). It is compatible with a 4mm centering shaft and includes a 4.1mm ID adapter. To determine the maximum RPM for APC E-Series props, use the widely accepted Maximum RPM formula of 190,000/diameter.
