WalleFPV Eagle3 Prototype: Sub 100g Naked O4 Pro Upgrade

WalleFPV Eagle3 Prototype - Sub 100g Naked O4 Pro FPV Drone Upgrade

Hello DIYFPV community, I’m Walle from WalleFPV, bringing an update on our Eagle3 prototype, successor to Eagle2.

The core design goal: keep Naked O4 Pro on board while keeping takeoff weight <100g, and fix the weak point of Eagle2 — the protruding camera lens.

Changelog Eagle2 → Eagle3

• New machined camera guard structure, fully wraps the Naked O4 Pro lens, reduces crash damage risk

• Switched to true X frame layout, optimized CG and motor power distribution for more predictable handling

• Compatible with 45mm / 1.8" propellers

• Buzzer fitted as standard

Dual battery choices: 3S380mAh lightweight pack, or 3S550mAh longer runtime pack

Legal note: The sub-100g takeoff weight could mean registration exemption in UK and Japan. This is not legal advice; every operator must check local drone regulations.

Flight testing is underway. Will post O4 raw footage soon. Happy to answer your technical questions below.

Walle | WalleFPV