E-PROPS propellers are manufactured entirely in France (South-East, Provence, near Sisteron). The team of 67 aeronautical engineers and technicians produces over 75,000 carbon blades a year.

1— Manufacturing process

All E-PROPS parts — blades, hubs and spinners — are made of carbon + epoxy resin, manufactured using RTM (Resin Transfer Molding).

2— Titanium leading edge protection

E-PROPS offers a great solution for reinforcing its carbon blades:

E-Props Titanium leading edge protection
E-Props Titanium leading edge protection

3— Propeller balancing

E-Props are renowned for their light weight, low moment of inertia and perfect balance. They all leave the workshops perfectly balanced — at E-Props, each set of blades is balanced with its own hub and spacer.

In a propeller, blades don't necessarily need the same mass. What counts for perfect balancing is the distribution of mass along the blade length — the static moment.

E-Props balancing (PDF) →

4— Tracking

"Tracking" is the difference in longitudinal position from one blade tip to the next. On E-PROPS, the maximum tracking tolerance is 10 mm.

E-Props max tracking
E-Props max tracking

E-Props tracking (PDF) →

5— Propellers and vibrations

E-Props propellers generate very little vibration because they are very light and all balanced on a dynamic electronic bench. The team devotes a great deal of time to this operation, with extremely low balancing tolerances on both new and repaired propellers.

However, pilots may occasionally experience vibrations during flight, which may originate from the propeller, the engine and/or the aircraft.

E-Props fixed pitch carbon propeller