Overview
The Sub250 Nanofly20 is a 1S 2-inch analog micro quad built on an 88 mm wheelbase with an A30 battery connector. It uses a highly integrated AIO flight controller solution and is designed for indoor flight and small-space freestyle. For setup help or order support, contact support@rcdrone.top or visit https://rcdrone.top/.
Key Features
- 2-inch mini drone platform (Nanofly20 / frame NF20)
- Weight less than 250 g (marketing statement); listed weight: 33 g (ELRS)
- Carbon fiber bottom plate design for improved frame strength
- Highly integrated AIO flight controller (integrated electronics except the camera)
- 1002 21000KV motor
- Analog video system: 5.8G 200 mW VTX + CADDX ANT ECO camera
- Quiet flight / small flying noise (marketing statement)
Specifications
| Brand | Sub250 |
| Product name | Nanofly20 |
| Version | Analog Version |
| Frame | NF20 |
| Wheelbase | 88 mm |
| Weight | 33 g (ELRS) |
| Arm thickness | 1.5 mm |
| Flight controller | Redfox A1 F4 5A 4in1 AIO FC |
| MCU | STMF411 |
| IMU | ICM42688-P |
| OSD | BetaFlight OSD w/ AT7456E chip |
| ESC firmware/setting | Bluejay O-H-5 96K |
| VTX | 5.8G 200 mW |
| Camera | CADDX ANT ECO |
| Propeller | HQ prop 51 mm x 3 |
| Antenna | Copper tube antenna |
| Motor | Sub250 1002 21000KV |
| Receiver options | ELRS 2.4G (SPI) or TBS Nano RX |
| Battery connector | A30 |
| Recommended battery | 530 mAh 1S 90C LiHV (not included) |
What’s Included
- 1 x Nanofly20 Analog Quad
- 4 x HQ 51MM-3 propellers
- 1 x Phillips-head screwdriver
- 1 x 1.5 mm screwdriver
- 3 x M1.4*3 Phillips screw
Applications
- Indoor FPV flying
- Small-space freestyle (home / courtyard)
Details

Sub250 Nanofly20 is a 1S 2-inch analog micro quad built for indoor FPV and small-space freestyle.

Lightweight micro size makes it easy to pack and fly in tight spots.

A carbon-fiber bottom plate adds rigidity while keeping the build compact.

The 2-inch platform is tuned for indoor flight and small-room freestyle practice.

Choose the video system version that matches your FPV setup; this listing is for the analog build.

1002 motors paired with 2-inch props deliver quick response for tight indoor lines.

Low-profile layout keeps the camera and antenna protected while maintaining a clear FPV view.

Top and front views highlight the compact 88 mm wheelbase and tidy electronics stack.

Listed dry weight for the analog version is shown on the scale for quick comparison between builds.

In the box: the quad plus spare props, drivers, and mounting screws for basic setup and maintenance.
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