How much smaller can racing multi-rotors get? When I built my first racer a couple of years ago, I thought it was difficult to cram all of the necessary components into a 250mm frame. Now many quads are half that size or less. Maybe that's why there is also a rising trend in prebuilt racing quads. Sure, there is plenty of benefit to the DIY approach. But when space is this tight, some people can save their sanity by letting the factory fit all of those parts into the right places.
The VIFLY R130 is one of these newer, factory-built racing quads. VIFLY offers the R130 in a bind-n-fly package ($170) that includes pretty much everything you need except a radio transmitter, flight battery, and FPV goggles. You can choose from versions that are compatible with either Spektrum, FrSky, or FlySky transmitters. I tested the Spektrum variant. There is also a ready-to-fly version of the quad that includes a RadioLink 8-channel transmitter ($230).
About the R130
As the name suggests. The R130 has a 130mm frame. It actually measures 134mm between diagonal motors. But let's not nitpick. This is a small quad no matter how you look at it. The main structural components are made of carbon fiber. Most of the electronics are hidden within the double-decker main frame. In fact, the upper deck is a circuit board containing several integrated components.
The R130 uses a 4-in-1 Electronic Speed Control (ESC) rather than four individual units. This approach conserves precious real estate within the quad's small footprint. The only downside is that you have to replace the entire board ($40) if one ESC goes south. VIFLY sells the ESC and other replacement parts on their website.
The ESCs are linked to tiny brushless motors spinning 3-inch-diameter (76mm) 3-blade propellers. In some places, the gap between the propeller arc and a part of the frame is just a few millimeters. Like I said…space is tight. Two of the motors use reverse-thread nuts to secure the props. This helps them to stay tight during flight.
A 700-line FPV camera is mounted on a swivel at the front of the quad. It appears to be well-protected from crash damage. You physically tilt the camera to your desired angle before taking off. I was concerned that the camera angle might drift during flight, but it has not been a problem. The R130 does not include any provision for mounting an action camera to record onboard video. I'm sure it would be a simple matter to whip up a simple mount, but I have not yet done so.