iFlight AOS 4 V5 Frame Kit

Designed by Chris Rosser, the iFlight AOS 4 V5 is a highly optimised 4-inch freestyle frame engineered to deliver exceptionally clean gyro data. Built from premium 3K carbon fibre, this frame geometry uses advanced resonance modelling to shift structural vibrations above the critical control loop frequencies. This allows builders to run lower filtering and higher PID gains for locked-in flight performance. It hits the perfect sweet spot for pilots seeking the tight agility of a micro quad paired with the aggressive momentum of a 5-inch rig.

Key features

• Engineered via finite element analysis for minimal mid-band resonance and superior vibration handling.
• Native support for the DJI O3 Air Unit, including isolated camera mounting plates to actively eliminate video jello.
• Dual stack footprints supporting both 20x20 and 25.5x25.5 boards for flexible FC, AIO, and VTX placement.
• Durable split-arm design allows for quick and easy replacement after a hard crash.

Specifications

• Propeller support: 4-inch
• Stack mounting: 20x20, 25.5x25.5
• Camera sizing: 19mm, 20mm (O3 compatible)
• Material: 3K carbon fibre

Pair this frame with 1404 to 2004 motors and a high-quality AIO flight controller to build a lightweight, highly responsive freestyle platform that requires minimal tuning right out of the box.