The OasisFly25, a thrilling 2.5-inch FPV drone, is packed with the DJI O3 air unit and weighs in at under 250 grams, making it ideal for compact, high-energy flights that demand agility and precision. This palm-sized drone boasts impressive power despite its compact dimensions. Crafted for thrill-seekers who crave the exhilaration of freestyle flight within confined spaces or bustling park environments.
In this comprehensive overview, I’ll guide you through my experience with the OasisFly25, covering its key specifications, performance, flight characteristics, and whether it meets the high expectations surrounding its release.
The drone features seamless integration with the DJI O3 system when paired with a receiver installed, but for added convenience, a plug-and-play option is available for those opting to utilize a specialized FPV system and receiver.
Within the designated area, you will find the drone situated alongside two accent bins holding.
- Two sets of high-quality (HQ) 2.5×2.5×3 tri-bladed propellers are available for use.
- Stickers and manuals
- Essential components for assembling and disassembling electronic devices: spare screws, precision-engineered standoffs, and a versatile hex key.
- Customized 3D-printed digital camera holders designed specifically for both adorned and bare GoPros.
- Will a USB-C adapter enable seamless communication between my flight controller and PC?
Batteries are available for individual purchase.
Spare propellers:
- The F7 with 35A ESC delivers impressive performance for a compact 2.5-inch drone.
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Oasis Body: Sub-250mm, featuring a compact 135mm wheelbase, bolstered by a robust 2mm-high top plate and reinforced with 0.5mm-thick arm and backside components.
- Redfox A3 F722 45A AIO
- DJI O3 Air Unit
- Sub250 1404 4500kv
- HQ2.5×2.5×3
- Professional-grade radio systems often prioritize reliability and range over portability, whereas enthusiast-oriented options focus on convenience, affordability, and ease of use. By combining the PNP module’s simplicity with the TBS Crossfire Nano’s renowned performance, this setup caters to both worlds.
The TBS Crossfire Nano’s sleek design and lightweight construction make it an excellent choice for aerial photography missions or small-scale drones, while its robust 2-mile (3.2 km) range ensures seamless communication even in challenging environments. When paired with the ELRS 2.4G system, this setup offers a cost-effective and user-friendly alternative to high-end systems.
In summary, this versatile combination of modules provides an exceptional balance between performance, portability, and affordability, making it an attractive option for both professional pilots and hobbyists alike.
- XT30
- 4S 530-730mAh LiPo (not included)
- 174g (without battery), 241g with 4S 720mAh rechargeable battery included.
The OasisFly25 showcases a sleek, sturdy design that seamlessly merges carbon fibre with CNC aluminium to deliver both energy and stability in its construction. The streamlined design enables easy disassembly when maintenance is required. The innovative design of replaceable arms allows for seamless swapping of damaged limbs, eliminating the need to replace the entire body unit. Spares for body components can be sourced from the Sub250 website.
While weighing in at 174 grams sans battery and 241 grams with a 720mAh 4S pack, this 2.5-inch drone may be slightly heavier than some of its peers; nevertheless, its construction is remarkably robust. The supply provides a superior video feed, rendering this an outstanding drone for capturing exceptional footage.
While lengthy body physique designs may obscure the propellers from the FPV camera’s view, this can be a desirable outcome since it prevents visual obstructions and preserves the overall aesthetic of the shot. There’s ample space to accommodate a secondary digital camera if desired.
The lack of a built-in USB port on the flight controller necessitates the use of a specific adapter or dongle for configuring Betaflight, which may prove inconvenient for some users? While not a deal-breaker, the need for regular adjustments can prove inconvenient if they’re necessary.
The OasisFly25 body offers flexibility in accommodating both digital and analog setups, showcasing its versatility.
The OasisFly25 boasts a robust construction that can withstand rough handling; still, it’s prudent to consider augmenting your setup with supplementary props and limbs for added security. Despite experiencing numerous crashes during testing, the drone surprisingly demonstrated remarkable resilience, sustaining only faint scratches on its motor and body components. The 3D-printed motor protectors effectively absorbed shocks and vibrations, keeping the motors in pristine condition throughout.
The majesty of flight! Let’s delve into the intricacies of how it soars through the skies with such precision and agility.
The integration of the powerful 4S 720mAh LiHV battery significantly reduces the overall weight to just 241 grams, rendering it remarkably light and manageable for a 2.5-inch FPV drone. While this setup won’t leave room for a naked GoPro weighing under 250g, it still delivers exceptional performance.
From the moment of primary takeoff, I was struck by the drone’s vitality. Despite its compact size, this device provides impressive speed and steadiness, functioning remarkably well even in turbulent weather conditions. As I adjust the throttle to 25%, the aircraft glides smoothly, its speed steady. With a subtle increase in power, however, it bursts forward with remarkable acceleration, soaring upwards with impressive rapidity. While piloting my drone, I effortlessly navigated through a strong 23-mph headwind, yet the aircraft remained steadfast and stable, exhibiting minimal turbulence during aggressive flight maneuvers, while also being relatively quiet in operation.
Despite the added weight, the drone still performed effectively, delivering approximately five minutes of intense aerial activity. When flying at a leisurely pace, you may be able to extend your flight duration to more than seven minutes. The Oasis Fly 25 achieves a remarkable balance between agility and effectiveness.
Without visible propellers, you can capture crisp footage regardless of your speed. The antenna’s exceptional efficiency consistently maintained a strong signal throughout my flights.
Here are the most impressive 2.5-inch quads equipped with the DJI O3 that I’ve flown for freestyle purposes. With its larger quad dimensions, including a substantial 5-inch size, this model possesses an inherent “flingability,” likely stemming from its increased weight, which could contribute to its enhanced aerodynamics. With a precise punch-throwing mechanism allowing for smooth, effortless aerobatics, inverted flight maneuvers and dives are effortlessly executed, free from the unpredictable turbulence commonly associated with smaller aircraft. Elite freestyle quads demand exceptional mastery of these attributes: Although it may not rival the potency of a 5-inch model, its responsiveness, punchiness, and agility still make it a force to be reckoned with. The device operates quietly, ensuring it won’t disrupt those nearby.
While navigating dense environments, such as woodland areas, I typically operated within a 20-30% throttle range, similar to a compact 5-inch drone. Its reduced size and lightweight design made it significantly easier to maneuver compared to larger quads.
Despite examining smaller batteries, such as a 4S 450mAh model, I found that the flight time was significantly reduced, nearly cut in half, when compared to the larger 720mAh option. While the reduced weight did improve flight efficiency, I couldn’t help but feel that the resulting shorter flight duration wasn’t a worthwhile sacrifice in my opinion. For a reliable and efficient charging solution, I recommend opting for the 4S 720mAh battery pack from Sub250, offering top-notch overall performance.
I’m fairly impressed with the Oasisfly25’s design and performance overall. The one factor is weight.
While the body’s sturdiness does add weight, which in turn enhances its sturdiness, I would have preferred a lighter build for improved efficiency and agility. Despite the compromise on sturdiness being understandable.
Consider scaling back weight by removing the 3D-printed toes, which can help reduce the overall weight of your DJI O3 Air Unit by approximately 15 grams. Swapping out the distinctive O3 antenna for lightweight dipole antennas can trim grams from the overall weight, making it an accessible upgrade option for those who won’t need to fly long-range with this model.
One minor suggestion to consider is extending the battery lead by a small margin to alleviate tension on the solder connections.
To prevent damage or loss, consider adding a protective lip to the underside plate of the DJI O3 digital camera using a robust 3D printing material; a small, discreetly attached protrusion at the front could provide effective safeguarding. To safeguard your lens from scratches, I strongly recommend using an ND filter or a clear UV filter when shooting in dusty or debris-filled environments.
The flight controller arrives pre-configured with Betaflight 4.4.3, boasting a firmware target of. The ESC ships with BLHeli_32 firmware version 32.9.
Before taking to the skies with my new drone, I followed these essential steps.
- The ExpressLRS receiver arrives preloaded with ELRS 3.3.1 firmware, designed to achieve a seamless transmission experience.
- Power the device using either the battery or a USB connection, then wait for it to automatically enter WiFi mode, as signified by a brief, rapid flashing of the LED.
- Establish a connection to the ExpressLRS receiver’s Wi-Fi network using your smartphone. Next, launch a web browser and navigate to the IP address 10.0.1, followed by entering your binding phrase.
- Observe various binding strategies, as outlined in your comprehensive instructions below.
- Set your personal charges.
- Configure settings for ARM, Angle, Beeper, and Turtle mode to optimize performance and functionality.
That’s it!
Completely! The Sub-250g Oasis Fly25 FPV drone delivers unparalleled efficiency within its remarkably compact and rugged framework. This agile drone excels in freestyle flying, boasting impressive responsiveness and speed. Despite being only slightly heavier than its premium counterparts, this product’s exceptional usability and adaptability more than compensate for the minor weight gain.
The DJI O3-powered OasisFly25 offers exceptional value at $396, catering to both beginners and experienced pilots seeking a portable, lightweight (<250g) freestyle drone. Consider sourcing the OasisFly25 from these trusted distributors:
If you’re in the market for a powerful and portable freestyle drone, the OasisFly25 is an excellent choice that’s sure to deliver.
