Quiet Electric Ducted Fans

Lectratek’s unique ultra-quiet electric ducted fans have their roots in sister company CRG’s participation in the AFRL/IARPA Great Horned Owl (GHO) program. The technologies and design tools have evolved from that point to today, where Lectratek can rapidly design ducted fan propulsor systems for a wide variety of electric aircraft types.

Quietly Effective
Lectratek quiet, electric ducted fans (EDFs) produce far less noise than propellers
Safe to Spin
Improved safety when compared with open rotors, eliminating tip strikes beyond the fan case
Integrate Your Way
Integrate our fans into fixed wing, STOL, and VTOL aircraft with pylons or embedded in ducts
COTS or Custom
Choose from existing products, or ask about a custom solution for your application

Our EDFs have been built and tested at various sizes from 3.5” (2.5kW) to 14” (50kw).  Thrusts within those size ranges have run from 8 pounds to 150 pounds, and will depend on what performance parameters the fan designs are optimized for. Lectratek’s ultra-quiet ducted fans are scalable up to 35”.

While our EDFs are very efficient, with consistent performance across a wide range of vehicle velocities, they are most notable for their acoustics. Lectratek’s EDFs do not use compensation or mitigation to achieve quiet performance – the quiet performance is designed in. The figure below gives an idea of the relative acoustic performance of these ultra-quiet ducted fans.