BetaFPV Air75 II Brushless Whoop Frame, 4.00g PP, 75mm Wheelbase, 25.5 x 25.5mm FC Mount
BetaFPV Air75 II Brushless Whoop Frame, 4.00g PP, 75mm Wheelbase, 25.5 x 25.5mm FC Mount
BETAFPV
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Overview
BetaFPV Air75 II is a brushless whoop frame for 75mm builds. It uses a reshaped structure (4 arm braces vs 6 on Air75 Gen 1) with optimized ducts and connecting braces to reduce vibration and improve response, while keeping the frame weight at 4.00g and using PP material.
Key Features
- Frame reshaped for +11% thrust (stated vs Air75 Gen 1)
- 4g ultra-light (10% weight reduction stated vs Gen 1)
- Optimized connecting braces to reduce frame amplitude and support near-perfect PID step response (with Feedforward tuning)
- Optimized PP blend for improved crash resilience
- Pilot-focused details: motor fixed slots, motor screw protection structure, enlarged FC mounting holes (25.5 x 25.5mm), lowered duct profile
For compatibility questions or spare-part selection help, contact support@rcdrone.top or visit https://rcdrone.top/.
Specifications
| Item | Air75 II Brushless Whoop Frame |
| Material | PP |
| Weight | 4.00g |
| Wheelbase | 75mm |
| Motor Mounting | 3-M1.4-6.6mm |
| Flight Controller Mounting Hole | 25.5 x 25.5mm |
| FC mounting hole (max) | phi 1.2mm |
| Battery Slot Size | 16.3 x 6.3mm |
| Maximum Size | 99.1 x 99.1 x 16.2mm |
| Duct Diameter | 42.0mm |
| Duct Height | 4.5mm |
| Arm Braces | 4 |
| Propellers | 40mm propellers |
| Color | Black, Transparent Blue, Transparent Orange, Transparent Purple, Transparent White, Transparent Gray |
| Diagram callouts | 25.5mm, 75mm, 42mm, 99.1mm, 16.2mm, 16.3mm, 6.3mm, 4.5mm, phi 6.6mm, phi 4mm, phi 1.4mm |
Air75 II vs Air75 (Gen 1) Comparison
| Air75 II Brushless Whoop Frame | Air75 Brushless Whoop Frame | |
| Weight | 4.00g | 4.45g |
| Wheelbase | 75mm | 75mm |
| Duct Diameter | 42.0mm | 42.5mm |
| Duct Height | 4.5mm | 4.7mm |
| Arm Braces | 4 | 6 |
| Motor Fixed Slot | Supported | Supported |
| Screw Protection Structure | Supported | Not Supported |
| Propellers | 40mm propellers | 40mm propellers |
Thrust comparison chart label: Air75 (0802SE 23000KV motor + GF 40mm props).
Recommended Parts
- Battery: LAVA 1S 450mAh 75C Battery; LAVA 1S 550mAh 75C Battery; BT2.0 550mAh 1S Battery; BT2.0 450mAh 1S Battery
- FC: Air Brushless Flight Controller; Matrix 1S Brushless Flight Controller (3IN1/4IN1); Matrix 1S Brushless Flight Controller (5IN1)
- Motors: 0702 II Brushless Motors; 0802SE Brushless Motors; 1102 Brushless Motors
- Canopy: Air Canopy; Canopy for Micro Camera 2022; Micro Canopy Lite; Canopy for O4 Air Unit
- Propellers: GF 40mm 2-Blade Propellers; GF 1611 3-Blade Propellers
- Screws: Meteor Series Motor Fixing Screws Pack (40PCS)
What’s Included
- Air75 II Brushless Whoop Frame
Details
Air75 II keeps a 4.00g PP frame while refining the duct and brace layout for a lighter, more responsive 75mm whoop build.
A reshaped structure reduces arm bracing from six to four to help cut vibration and improve control response.
Key fit points include a 75mm wheelbase, 42mm duct diameter, and up to 25.5 × 25.5mm flight controller mounting.
Thrust results are compared against the Air75 (Gen 1) using 0802SE 23000KV motors and GF 40mm propellers.
Optimized connecting braces are designed to reduce frame resonance for cleaner step response with Feedforward tuning.
Pilot-focused details include motor fixed slots, added screw protection, and enlarged FC mounting holes for easier builds.
In the box: the Air75 II frame and a clear canopy for a straightforward 75mm whoop build.
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