Arfun Pro 95mm (In-Depth Review)
The Arfun Pro 95mm is one of the fastest, if not the fastest, sub-100mm micro FPV racer currently in the market today. Featuring a BLHeli-S 4-in-1 20A ESC with a maximum current burst of 25A and light overall weight, it’s not surprising why the Pro 95mm has such blistering speed.
Now to put that into perspective, most sub-100mm FPV racers come with 10-15A ESCs only so to have 20A ESCs in such a small drone is simply overkill. With its high capacity ESC, the Pro can easily handle 3S batteries. It is also the updated version of the earlier Arfun 90mm with a few small upgrades compared to its predecessor. These upgrades include the rear LED lights, slightly bigger propellers, a buzzer and a larger frame.
- Dimensions: 118 x 120 x 39mm (with battery)
- Platform: Quadcopter
- Diagonal motor distance: 95mm
- Flight controller: micro F3
- ESC: BLHeli-S 20A (compatible with 2S/3S)
- Propulsion: DYS 1104 7500kV brushless motors / Gemfan 2035 4-blade propellers
- Weight: 87g (with battery) / 54g (without battery)
- Supplied battery: 7.4V 500mAh 2S Li Po (30C)
- Charging time: about 60 minutes
- Flight time: about 3-4 minutes
- Control distance: about 200m (clear line of sight) / approximately 150m (indoors)
- Versions available:
- Camera resolution: 600TVL
- FPV channels: 48
- FPV transmission power: 25mW
- FPV transmission range: 150 – 200m
- Includes rear LED lights and buzzer
A high capacity ESC isn’t just the only reason why the Pro is so fast. Another key reason is its light overall weight — 83g with the included 2S 500mAh battery. This creates for a very impressive power-to-weight ratio. Arfun claims that the DYS BE1104 7500kV motors can generate at least 118g of thrust each when paired with the supplied Gemfan BN2035 four-blade propellers. This brings the total thrust to between 400g and 900g or more depending on what battery and propellers you fit it with — more than four times the weight of the Pro, at least.
With such an impressive maximum thrust, I was initially surprised why Arfun did not ship the Pro with a 3S battery. Instead, it is shipped with a 2S 500mAh 30C battery but this isn’t actually bad and I’ll explain why later in this review.
The Pro features a full carbon fiber frame. Plate thickness of its main frame is 3mm while a thinner 1.5mm plate is used to cover the top of the fuselage. The battery sits at the bottom with a velcro strap to hold it in place. I find the velcro strap a bit old school and not as good as the newer elastic straps that some brands are now shipping their brushless FPV racers with. Getting the battery to sit properly is harder when using a velcro compared to an elastic strap.
Although the carbon fiber frame is both light and strong, main components such as the flight controller and ESCs are not fully enclosed and protected from the elements.
With that said, flying the Pro over a grassy field after it rains is not a good idea, unless you’re very sure you’re not going to crash. It would have been great if Arfun had provided the Pro with a plastic canopy like on the Kingkong 95GT. Unfortunately, they chose not to.
At the rear are two bright LED lights that greatly help in orientation. These lights can also be programmed with three different colors for various purposes. The Pro 95mm also has a loud 80dB built-in buzzer that helps if you’re trying to locate it after a crash. The buzzer can also be used as a low voltage alarm. Another nice feature is the built-in OSD (On Screen Display) which provides important information such as voltage level, flight duration and an artificial horizon.
At the heart of the Pro is an F3 flight controller. As for radio compatibility, it is available in five different kits — PNP, FrSky 8-channel, DSM2 6-channel, FlySky AFHDS 8-channel and FlySky AFHDS 2A 8-channel kits. The sample unit featured in this review is a PNP kit sponsored by GearBest.
This is the part that has many reviewers raving about the Arfun Pro 95mm. Thanks to the Pro’s high capacity ESCs, it is capable of handling 3S comfortably, something which other brushless micros could not. The KingKong 95GT, for example, has 10A ESCs and although it can fly on 3S batteries, it is simply not recommended especially if you like throttling hard most of the time.
Interestingly, I find the Pro to be best flown with a 2S battery instead of a 3S. This is probably because the Pro was tuned to fly with a 2S and there doesn’t seem much benefit to gain from using 3S batteries due to the extra weight. When flown with a Turnigy Nano-Tech 3S 450mAh 65C battery, the Pro starts to feel a bit sloppy and less agile, particularly when making tight turns or sudden changes in direction. This is probably due to the heavier weight of the Turnigy (40g) compared to the supplied 2S battery (31g). The extra 9g may not seem much in your hands but considering that 9g is an increase of about 10% in the total weight (83g) of the Pro, it is significant. Another thing worth considering if you plan to fly it with a 3S is that the stock PID settings do not perform well with 3S and you need to dial them down a bit.
There is really nothing much you can do to counter the 8g increase in weight. One approach would be to remove the upper carbon fiber piece and its four screws which saves about 3g although this is something I wouldn’t recommend because it will leave the FC a lot more exposed than it already is. Another approach would be to remove the buzzer and LED lights which could save about 5 to 10g but doing so would mean you lose two very useful features.
On a positive note, using a 3S battery does bring along some benefits. Punch ups are slightly more powerful and the Pro feels a lot more zippy when accelerating in any direction. The only downside, as mentioned earlier, is that it starts to feel a bit more cumbersome and the stock PIDs settings are meant for 2S batteries.
Default flight settings such as the PIDs are fine (as long as you’re using 2S batteries) and should suit most pilots although they can always be customized in Betaflight. Other features that can be customized include the LED light colors and data fields on the OSD.
The Pro comes with a 600TVL 5.8G FPV camera with a total of 48 channels and a transmission range of approximately 200m. Transmission power is fixed at 25mW and the camera has a fixed tilt. Image transmission quality from the camera isn’t too bad though not as good as some other micros that feature cloverleaf antennas (the Pro features an omnidirectional antenna).
Occasionally the video feed can get a bit choppy even when flying within 200m and with a clear line of sight although it’s not too big an issue.
No doubt, the Arfun Pro 95mm is the fastest brushless micro FPV racer that I’ve tested to date. It features a high capacity 4-in-1 20A ESC and is obviously faster than other recent models that I currently own such as the KingKong 95GT. Although it is a very fast micro, it isn’t perfect as evident in its naked frame design that leaves both the FC and 4-in-1 ESC exposed to the elements. Other details, such as the supplied velcro strap didn’t impress me either.
The FPV system is also mediocre and features an omnidirectional antenna which doesn’t provide the best image transmission you can get in a sub-100mm micro. On a positive note, there is the customizable twin LED lights at the rear, built-in OSD and a loud buzzer.
The Pro is obviously a very fast micro and is one model to consider if you’re looking for a micro purely for flying aggressively. It is not as well polished as the KingKong 95GT, DYS Elf 83mm or the Eachine Lizard 95. Such micros offer a better package and a more refined overall performance although they are not as fast as the Pro. The Pro is a micro you’ll want to get if speed and thrills are your priority.
The Arfun Pro is currently available at GearBest for $130 shipped in PNP kit. Kits for popular radios such as FrSky are also available at slightly higher prices. Click here for more details.
Arfun Pro 95mm
Build Quality and Design9/10
- Probably the fastest sub-100mm brushless FPV racer at press time
- BLHeli-S 20A 4-in-1 ESC
- Buzzer and programmable rear LED lights
- Partially exposed fuselage with no canopy
- Old school velcro battery strap
- Uninspiring FPV system