Build: iFlight Mini Revobee32 F4 FC & Monkey X3 130 Frame

In this article we will be reviewing the Mini Revobee32 F4 flight controller from iFlight, and their Monkey X3 130mm mini quad frame.


In this build we aim to test the following parts:

  • Mini Revobee32 Tower System – Product Page
    • Revobee32 F4 FC (Betaflight OSD, ICM-20608 Gyro, 5V BEC)
    • iPeaka 18A BLHeli_S 4-in-1 ESC
  • iFlight Monkey X3 Frame – Product Page
  • iPower the Force IF1407 4100KV Motors – Product Page


Because I had a very busy schedule this couple of months, iFlight offered to put this thing together for me, so I could just install the receiver and go test it for them.

The quad came in a nice foam padded case, with a set of 3045 bullnose tribades props and a foxeer antenna for the VTX.

Closer Look

The Monkey X3 frame has a really simple and minimalist design which serves a 3-inch quad well in terms of weight saving.

However there are 2 downsides to the design: 1. it’s not designed for mounting an HD camera; 2. the VTX antenna connector is vulnerable to crashes. I think an Eachine VTX03 style VTX would be more suitable for this frame/build.

The motors are the iFlight “Force” 1407 4100KV, they also do the 3500KV version which they did send me a couple of spare too.

The bundle comes with the Foxeer Arrow Mini FPV camera, with Foxeer 200mW VTX. Good thing about this camera is that it does have OSD to report battery voltage and it has decent image quality. Many micro quad bundles from other brands would normally come with low quality CMOS cameras to lower the cost. It’s great to see iFlight isn’t cutting corner there.

The only thing that is missing is a buzzer. I am probably going to put one in for lost model alarm.

The frame “cage” is held in place by 4 nylon nuts vertically and not using any standoffs like the transitional approach.

I am using the Frsky XSR receiver with this build. Since this is a F4 flight controller without built-in inversion for Smart Port, I had to tap the “uninverted SPort signal” from the receiver (green wire).

I am setting up SmartPort on this micro quad so I can tune my PID and rates from my Taranis.

The 4-in-1 ESC is always my preferred choice for a micro build like this. It saves spaces and makes wiring easier and cleaner.

The FC and ESC are actually sold together as branded as “tower system”, the small 20mm by 20mm form factor should be a very neat solution for other micro builds and frames too. It’s a pretty powerful system as it’s also got Betaflight OSD on this tiny board, though I am not using it in this build.

By the look of this quad it doesn’t seem to be too difficult to build, however I did find it a bit confusing as where to mount the receiver in the frame. In the end I decided to put it under the VTX and that turned out to be the perfect spot for it.

Here I mounted the propellers and antenna. The quad weighs at 178g without battery. I am planning to use a 4S 600-700mah battery with it.

Now on to the next part, fly her outside and get some footage…

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