Folding propeller "F5j Prop 1A" . (Design by Julian Benz)

Propeller manufactured using injection molding from high-strength, carbon fiber-reinforced plastic.

Nature provides the form and function. Julian has succeeded in designing the next generation of F5j propellers based on the concept of bionics. The result is a propeller with the greatest aerodynamic efficiency in both powered and glide flight.

The development focused on the popular F5j drive Tenshock 1515-15T with Reisenauer Micro Edition gearbox and 3s or 4s Lipo battery.

Diameter and pitch represent the optimal compromise between generated thrust and forward speed.

Particularly noteworthy is the extraordinary responsiveness when switching on the motor and the immediate acceleration of the model due to the direct airflow on the propeller. In competition, this is often decisive for victory or defeat, when in the poker for switch-off altitude in the last seconds it is determined that more altitude is needed or thermals far from the starting point are to be reached.

Usable with reservation with the following drives in regular F5j operation (max. 30 sec.) with battery capacities smaller than 1000 mAh:

Tenshock EDF 1515 - 15T - 4-pole 3770KV, Reisenauer Micro Edition 5:1NL/T both 3S and 4S
Tenshock TS-GDM1510A03-3950KV Planetary Gear Drive Motor(4.75:1) both 3S and 4S
Tenshock TS-GDM1510A04-5000KV Planetary Gear Drive Motor(4.75:1) at 3S

Technical data:

• Diameter: approx. 14 inches
• Pitch: - the average pitch is in the typical F5J range
• Weight per blade: 6.6 grams
• Propeller neck: 8 mm (suitable for all common spinners)
• Bore: 3 mm
• Maximum speed: 11,000 revolutions per minute
• Maximum power: 1,900 watts