Fractal F75 75mm Tiny Whoop Build: 1S 0802 Brushless Quadcopter Guide & Flight Footage. A full parts breakdown, weight spec, and flight footage for my Mobula7-style Fractal F75 75mm quadcopter - built with RCinPower 0802 25000KV brushless motors, a Happymodel Diamond F4 ELRS flight controller, and a 1S 480mAh LiHV battery. See what it flies like and why I chose these parts.
Fractal F75: A 75mm 1S Brushless Tiny Whoop Build
Whether you're a beginner or a seasoned pilot, I hope this inspires your next Moblite/Mobula7 Tiny Whoop quadcopter build.
Over a decade ago, I was involved in designing and building radio controlled micro flight controllers, which are now commonly used in 1S LiPo/LiHV-powered quadcopters like the Tiny Whoop. While many companies, especially in China, have taken the lead in manufacturing these components, my passion for drone building remains strong. Let's dive into this exciting build!
This carbon fiber framed Mobula 7 style Whoop Drone features some of my favorite parts for analog FPV lightweight freestyle 1S LiHV flying. It's a perfect blend of performance, durability, and lightweight design.
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Moblite 7 Style 75mm Carbon Fiber Whoop Frame
The Moblite/Mobula 7 style 75mm carbon fiber frame by Fractal Engineering is renowned for its light weight and is nearly indestructible. This frame is also firm and rigid, ensuring quick responsiveness to inputs and making it ideal for freestyle and racing. Paired with the high-KV RCinPower 0802 brushless motors, this micro quad delivers ample thrust, allowing for impressive flips, rolls, and tight turns. Despite its compact size, this RC Tiny Whoop Drone handles outdoor flying conditions effortlessly, even in fairly windy scenarios.
Check out the flight footage below to see this carbon-framed Mob7 in action, zipping through the air with tight freestyle maneuvers:
Mobula 7 F75 Whoop 1S Flight Video
Fractal F75 1S 0802-25,000KV Whoop Drone Flight Video
Fractal 75 1S 0802 Brushless Quadcopter Parts List
Each component in this 75mm quadcopter build was carefully selected for its performance, durability, and weight savings, ensuring a balanced and enjoyable flight experience.
- RCinPOWER GTS V3 0802 25000KV Brushless Motors: These double ball bearing brushless motors offer a perfect balance of power and efficiency for 1S whoops, providing ample thrust for freestyle maneuvers while keeping the weight manageable.
- Fractal Engineering F75 75mm Carbon Fiber Frame Kit: This robust carbon fiber frame ensures stability in the air while maintaining a low overall weight. When combined with the Mobula 7 Frame Hoops, it absorbs impacts during crashes, making it ideal for high-energy freestyle flying.
- 40mm GemFan Props: These lightweight and durable props are essential for freestyle Tiny Whoop Drone builds, offering a great balance between thrust and control.
- Happymodel Diamond F4 ELRS Flight Controller: Serving as the heart of this build, this flight controller integrates an ExpressLRS (ELRS) receiver, providing a lightweight solution with minimal weight and wiring, excellent long signal range, and precise radio control.
- 1S 480mAh LiHV Lipo Battery: Known for its consistent performance, this battery delivers the extra power needed for freestyle tricks while maintaining long flight times.
- Foxeer Pico Razer 1200TVL 12x12mm FPV Camera: This camera offers a crisp analog image and excellent light handling. Similar to the CaddX Ant FPV Camera, it provides a clear view of the surroundings, enabling precise maneuvers and an immersive FPV experience.
Fractal F75 1S 0802 Build Weight & Specs
| Component | Spec | Approx. Weight |
|---|---|---|
| Frame | Fractal Engineering F75 75mm carbon fiber, Mobula7-style | ~5g |
| Motors (x4) | RCinPower GTS V3 0802, 25000KV | ~8g total |
| Flight Controller | Happymodel Diamond F4, built-in ELRS | ~3.8g |
| Camera | Foxeer Pico Razer, 1200TVL, 12x12mm | ~1g |
| Props | GemFan 40mm, 3-blade | <1g total |
| Battery | 1S 480mAh LiHV | ~13g |
| All-Up Weight (AUW) | ~32g |
Weights are approximate manufacturer specs. Swap in your bench-measured AUW here if you have a scale - a verified number is worth more to readers comparing builds than an estimate.
Overall, this setup delivers exceptional flight performance. It offers plenty of power for a 1S build and can withstand crashes thanks to its lightweight and durable design. The combination of these carefully selected components makes this Tiny Whoop Drone an excellent choice for both indoor and outdoor freestyle flying.
Why I Chose These Parts
Over the years, I've experimented with a wide variety of quadcopter components. The 0802 brushless motors and Fractal Engineering F75 75mm carbon fiber frame with the Mobula7 hoops were selected to provide a stable yet agile platform for freestyle flying. The lightweight Happymodel F4 Diamond Flight Controller keeps the build compact, while the Foxeer Razer Camera ensures a high-quality analog FPV feed, which is essential for precise control and quick reaction times during flight.
0802 vs 0702 vs 1002: Why 0802 for This Build
The 0802 stator (8mm diameter, 2mm height) sits in the sweet spot for 75mm whoop frames. Smaller 0702 motors save weight and feel sharper on tight 65mm frames, but give up torque that a 75mm frame benefits from. Stepping up to 1002 or larger adds punch for open, high-load layouts, but adds weight this 75mm build doesn't need. At 25,000KV on 1S, the 0802 GTS V3 gives enough thrust for freestyle flips and rolls without pushing the frame past what's controllable for most pilots learning the class.
Build Thoughts: Fractal F75 0802 1S Brushless
This Mob7 Fractal Engineering 75mm carbon fiber framed 0802 brushless motor powered 1S build showcases the advancements in Tiny Whoop Drone and radio controlled quadcopter technology over the past decade. Reflecting on my early days in micro quadcopter development, it's incredible to see how accessible and advanced these tiny drones have become. Whether you're a beginner or a seasoned pilot, I highly recommend trying out this build. It's lightweight, durable, and incredibly fun to fly!
What do you think of this build? Let me know if you have any questions or suggestions - I'd love to hear your thoughts!
Fractal F75 1S Whoop Build FAQ
How long does a 1S whoop like this fly on a single battery?
Expect roughly 3-5 minutes of flight time on a 480mAh 1S LiHV pack, depending on how aggressively you fly. Freestyle flying with frequent full-throttle punches drains faster than cruising; carrying a few spare batteries is standard practice since 1S packs charge quickly.
Is the 0802 motor too big for a 75mm frame?
No - 0802 is actually the standard motor size for 75mm frames. It's oversized for the smaller 65mm class, where 0702 motors are more common, but on a 75mm frame it delivers the thrust-to-weight balance most builders want for freestyle and light racing.
What's the difference between 65mm, 75mm, and 85mm whoops?
The number refers to prop-to-prop diagonal size. 65mm frames are the lightest and most maneuverable, best for tight indoor spaces. 75mm frames like this Fractal F75 add stability and wind resistance for outdoor flying without much weight penalty. 85mm and larger frames trade some agility for more payload capacity and smoother flight in open areas.
Can this build handle outdoor flying, or is it indoor-only?
This build handles outdoor conditions well, including moderate wind. The 75mm frame size and 0802 motor's thrust give it enough authority to stay controllable outdoors, which is one reason to size up from a 65mm whoop if you plan to fly outside regularly.
What props work best on a 75mm 0802 build?
40mm props are the standard match for 75mm frames with 0802 motors. Tri-blade props (like the GemFan 40mm 3-blade used here) give more grip and control, which is preferable while you're learning; bi-blade props are more efficient and stretch flight time slightly once you're comfortable with the platform.