AOS 3.5 V5.1

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Your Price: $64.00

Part Number: C324

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The AOS 3.5 v5.1 is a 3.5" frame designed by Chris Rosser

V5.1 Upgrade - This upgrade improves the interlocking arm geometry and adds a central spine to reinforce the arms and further stiffen the flight controller mounting. It improves durability and vibration performance whilst being fully compatible with all AOS 3.5R V5 frames. To upgrade the AOS 3.5R V5 all that is required is 4x Arms and the central spine.

This frame is not an open source and we can not make changes to the design. We provide the manufacturing to order and provide as a kit. Included are the carbon fiber parts and assembling hardware. 3D printed parts are not provided. We may also have a few in stock which can reduce the completion of the order. Any questions or concerns, please message us at [email protected]

Most production times are about 4-7 business days, but can be affected by work load at the time of the order.

For any 3d printing needed for the frame, files can be found at the 3D Print files tab. Please check out https://www.brain3d.co/ and they can help with having anything you need printed.

Note: We are not the designer and are not responsible if the frame is not as you expected. We only cut the files provided from the designer or from the source files links. It's your responsibility to research the frame before purchasing. Frames are all custom cut and are started once an order is placed. If you have any questions or concerns, please message us at [email protected], and someone will get back to you as soon as possible. It is also suggested to check the Discord server or aos-rc.com if you have any other questions.

If you cannot find what you are looking for and want to design your own, we would be happy to help out and provide a custom quote.

Files lasted updated with Cncmadness on Oct 30, 2025

Discover the future of sub 250g FPV with the AOS 3.5 V5.1, engineered to revolutionize your freestyle experience. Designed with cutting-edge patent pending technology and premium materials, here's why the AOS 3.5 V5.1 is the ultimate choice for drone enthusiasts:

1. Easy to build:

The AOS 3.5 V5.1 is designed to be the easiest and most user-friendly FPV frame to build. It's perfect for beginners with plenty of space, easy access to every stack screw and even fewer parts than the very user-friendly AOS 3.5 EVO!

2. Advanced Patent Pending Anti-Vibration Technology:

Say goodbye to unwanted vibrations that can hinder your drone's performance. The AOS 3.5 V5.1 boasts the new patent pending AOS X-Cell anti-vibration mount for the flight control stack, reducing vibrations by up to 50% (compared to AOS 3.5 EVO). This groundbreaking feature enables you to run lower filtering, dial in higher PID gains, and achieve unparalleled flight performance.

3. Durable and Versatile 7075 Aluminium Camera Cage:

The AOS 3.5 V5.1 is equipped with an ultra-durable 7075 Aluminium Camera Cage that accommodates all 19-20mm cameras, ensuring perfect compatibility with a wide range of camera systems. It includes an integrated soft mount specifically designed for the DJI O3 camera, with full support for ND filters. If you use a different FPV system, the frame also allows for hard mounting of all popular camera systems including Analog, WS Avatar, HDZero and DJI.

4. Immersive 155° FPV Experience:

Immerse yourself in the action with a full 155-degree field of view (FOV) for the FPV camera with no props in view. This expansive view is perfect for DJI O3 users and guarantees an immersive flight experience for both professionals and enthusiasts.

5. Unrivaled Stack and VTX Compatibility:

With two stack positions each supporting 25.5x25.5mm, and 20x20mm mounting the AOS 3.5 V5.1 ensures complete compatibility with a huge range of flight controllers, ESCs, and other electronics (including DJI O3 Air Unit and HDZero Freestyle V2 VTX), giving you the freedom to customize your drone to your heart's content.

6. Reinforced arm and stack mounting:

Say goodbye to stripping threads! The arm mounts on the AOS 3.5 V5.1 are reinforced with steel press-nuts for easy assembly and enhanced durability.

7. Flexible Battery Mounting:

Experiment with different battery configurations by choosing between lengthwise or toilet tank battery mounting options. This flexibility allows you to optimize your drone's balance and performance based on your flying style and preferences.

8. Flexible stack positions:

Choose between a front and rear stack or a single central stack. Mountings are M2 but can be drilled out to M3 as required.

Elevate your sub 250g FPV game with the AOS 3.5 V5.1. Designed to deliver the ultimate in performance, durability, and customization in a smaller form factor, it's the perfect choice for professionals, enthusiasts, and beginners alike. Unleash your creativity and push the boundaries of what's possible in the world of freestyle flying. Upgrade to the AOS 3.5 V5.1 and take your FPV experience to the next level.

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