https://youtu.be/PKqGjCmEUao

Etafri Æsir - The Endurance 4" Quadcopter

Æsir is a compact, high endurance quadcopter for long range flying and cinematography. Æsir is powered by two high-capacity Lithium-Ion batteries; with a flight time of over 30 minutes. This small endurance drone has excellent performance, high-speed, and a unique form factor making it a superb all-round quadcopter.

Update: 18/04/21

Added a new configuration option based on desire to use Æsir with more flexible battery options. Created a new 'universal battery bay', which with the use of a traditional strap, can attach any battery within the undercarriage of Æsir. This part is external to the zip folder - download separately

Features:

• Over 30 min flight time: on 2S 4000 mAh Li-Ion 21700 batteries

• Aerodynamic form balancing the drone components between the frame

• Low-centre of mass for stable and efficient forward flight

• Ability to carry either FPV or GoPro mount-style cameras

• High stability with vibration absorbing dampers

• Super-easy recharging with a standard 18650-21700 battery charger

• Flexible component usage and electronics mounts

• Highly miniature and lightweight design: 275g full weight

• Entirely 3D-printable. Frame can be also purchased: based on iFlight F4 frame