Overview:
The Sub250 OasisFly35 is a 3.5-inch freestyle FPV drone designed to deliver a balance of power, efficiency and portability for pilots who want more performance than a micro quad, without stepping up to a full 5-inch platform. Built on a 175mm deadcat (DC) frame, it keeps props out of view for cleaner FPV footage while maintaining stable flight characteristics and strong durability.
At the core of the platform is a Redfox A3 45A AIO flight controller with an STM32F722 processor, paired with 1804 3450KV motors, providing fast throttle response and enough torque to handle 3.5inch props efficiently on 4S power. This gives the OasisFly35 a responsive yet controlled flight feel suited to freestyle, cruising and general FPV flying.
All versions include an integrated SUB-M10 GPS module, enabling features such as return-to-home and on-screen positioning data. This adds an extra layer of confidence, particularly for longer-range flights or when flying in unfamiliar locations.
The OasisFly35 is available in three distinct configurations, allowing you to match the drone to your existing FPV gear:
- Analogue ELRS – A lightweight and cost-effective option using a traditional analogue video system, ideal if you already use analogue goggles.
- O4 Pro with ELRS – A fully integrated digital HD setup using the DJI O4 Pro system, offering high-quality video and onboard recording capability.
- WTFPV with ELRS – A plug-and-play configuration without a video system, designed for pilots who want to install their own HD VTX.
With consistent hardware across all versions and only the video system differing, the OasisFly35 makes it straightforward to choose based on your existing 'ecosystem' while retaining the same flight performance and top-notch build quality.
Features:
- 3.5" freestyle platform designed for a balance of power and portability
- Deadcat frame layout for improved forward visibility with minimal prop intrusion
- Integrated SUB-M10 GPS module enabling return-to-home functionality
- Redfox A3 45A AIO flight controller delivering fast response and efficient power handling
- 1804 motors providing strong thrust for freestyle and cruising
- Durable carbon frame with reinforced structure and protective side plates
- Compatible with multiple FPV systems, including analogue and digital HD
- ELRS 2.4GHz receiver option for reliable long-range control
- Clean internal layout with protected electronics for improved durability
Specification (common across all versions):
- Wheelbase: 175mm
- Frame type: Deadcat (DC) carbon fibre
- Arm thickness: 3.5mm
- Flight controller: Redfox A3 45A AIO
- MCU: STM32F722
- Gyro: ICM42688-P
- ESC: 45A 4-in-1 (BLHeli_32)
- Motors: 1804 3450KV
- Propellers: HQProp 3.5x3.5x3
- GPS: SUB-M10
- Battery connector: XT30
- Approximate max battery dimensions (these can alter either way, as a velcro strap is used to secure the battery): (w)35 x (h)23 x (l)73mm
- Recommended battery (Not supplied): 4S 500–650mAh (See Related Products below for some compatible batteries)
- Receiver: ELRS 2.4GHz
Specification (by version):
Analogue ELRS Version
- Video transmitter: Sub250 Send T1600 (up to 1600mW)
- Camera: Caddx H1
- Weight: ~188g (without battery)
O4 Pro with ELRS Version
- Video system: DJI O4 Pro Air Unit
- Weight: ~194g (without battery)
WTFPV with ELRS Version (No VTX Installed)
- Video system: None
- Weight: ~162g (without battery)
Included:
- Sub250 OasisFly35 3.5" Freestyle FPV Drone
- Spare props
- Accessories
