Overview: DarwinFPV BabyApe III (V3) – My Favorite Finances 3″ Simply Acquired an Improve. Is It Higher or Worse?

I completely beloved the BabyApe II (V2). It was certainly one of my favorite analog sub-250g freestyle drones, so I used to be very excited to take a look at the brand new BabyApe III (V3). Nevertheless, DarwinFPV has utterly modified the specs—from motors, prop dimension, body design, LiPo cell depend, battery mounting, to weight. This isn’t only a new model, it’s a very totally different quad. So the actual query is: do these adjustments make it higher or worse? Let’s discover out on this evaluation.

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Take a look at my evaluation of the BabyApe II (V2) right here: https://oscarliang.com/darwinfpv-babyape-ii/

The place to Purchase

Get your Darwin BabyApe III from:

It comes with:

• 1 set of propellers
• Rubber bands for mounting the battery
• Screws
• Stickers

Specs

New Body Design: Smaller and Lighter

The BabyApe III is a whole redesign—a lot in order that it’s nearly unrecognisable in comparison with the V2, and it’s not what I anticipated. DarwinFPV has made the quad smaller, transferring from the V2’s 3.5-inch props right down to a 3-inch setup on the V3.

The body is completely new, with further arm bracing for help and crash resistance. The drone is lighter, DarwinFPV additionally has lowered energy from 6S right down to 3S. The large query is whether or not it feels considerably much less highly effective within the air—I’ll cowl that intimately within the Flight Efficiency part.

New Battery Resolution: Combined Emotions

Battery Compartment

As a substitute of a conventional high plate for mounting a LiPo battery, the BabyApe III now includes a battery compartment. The battery is now safer, nevertheless it additionally restricts battery dimension—you’re restricted to packs with a most width of 16.5 mm.

Battery straps are usually not wanted. As a substitute, DarwinFPV makes use of rubber bands to carry the battery in place. This protects a few grams and really works fairly properly in observe. That stated, rubber bands are simple to lose, so DarwinFPV contains 5 spares within the field.

DarwinFPV’s Personal Battery

DarwinFPV now affords its personal battery designed particularly for the BabyApe III: a 3S 500mAh LiPo (not LiHV).

These batteries haven’t any exterior wires—solely mounted connectors.

To cost them, you possibly can both use the included wire extension:

Or purchase DarwinFPV’s devoted parallel charging board, which lets you plug the batteries instantly into the board and cost as much as 8 without delay:

Battery Mounting Challenges

As a result of the batteries haven’t any wires, they needed to make the battery lead on the drone further lengthy. For some motive, DarwinFPV selected to make use of comparatively skinny 20AWG wire, which isn’t preferrred for energy supply. On most 3-inch quads, 18AWG is extra widespread. I assume this was executed to save lots of a little bit of weight.

Truthfully, I don’t absolutely perceive why DarwinFPV is pushing this “wi-fi” battery idea. The one actual profit I can see is that it retains the battery lead safely away from the propellers. In any other case, it appears like an try and push customers to purchase their proprietary batteries when ordering this drone.

High quality management is one other concern. I solely acquired one battery, so the pattern dimension is small, however the pack I acquired has noticeable bulges on the ends—seemingly inner wiring. This turns into an actual drawback as a result of the battery compartment is already extraordinarily tight. It’s a must to push the battery in with fairly a little bit of power, which made me fear about damaging it.

With these bulges, it’s unimaginable to seat the battery correctly. I needed to place it barely additional again to keep away from placing stress on the battery, however that shifts the middle of gravity to the rear. It additionally places pressure on the battery lead and solder joints. It’s simply not preferrred.

Battery Options

Satirically, the DarwinFPV 3S 500mAh LiPo is bodily bigger than each the BetaFPV LAVA 3S 450mAh and 3S 550mAh batteries—and these third get together batteries really match higher on this drone.

The BetaFPV batteries sit barely free within the compartment, however as soon as secured with the rubber band, they’re completely safe. There’s no extreme stress on the battery in any respect. The one draw back is the free battery wires, which you’ll have to handle fastidiously to keep away from prop strikes. I merely twist the wires just a few occasions earlier than plugging them in to cut back slack.

Any third get together battery with a width beneath 16.5mm ought to match advantageous within the BabyApe III.

FC: Minimal Specs for Low Value

The flight controller may be very restricted by way of options and functionality, nevertheless it’s adequate to get you within the air.

There are solely two UARTs, however surprisingly each can be found. The analog VTX (SmartAudio) is linked through a SoftSerial, and the ExpressLRS receiver is SPI-based, so it doesn’t take up any UART. This implies you should use the out there UARTs for extra peripherals corresponding to a GPS module or perhaps a digital FPV system like DJI O4.

That brings me to one of many primary downsides of this flight controller: the SPI-based ELRS receiver. Whereas it really works advantageous in observe, updating firmware can be extra cumbersome. As a result of SPI receiver firmware is bundled with the FC firmware, it’s important to replace Betaflight itself simply to replace the receiver. This is the reason UART-based receivers are typically most well-liked—they’re way more versatile and future proof.

There’s additionally no present sensor and no onboard flash reminiscence for Blackbox logging.

One other odd selection is the firmware. The FC ships with a model of Betaflight that’s a yr outdated. It’s not a deal breaker and needs to be completely advantageous for informal flying out of the field, nevertheless it does really feel a bit dated.

I additionally seen a minor QC challenge: one of many stack nuts was overtightened, compressing and deforming the rubber grommet beneath. This might doubtlessly scale back the effectiveness of sentimental mounting. Fortunately, it’s a simple repair.

Motors: Non-Customary Mounting Screws

The motors have a T-mount fashion, which means the propeller is mounted to the motor bell utilizing two small screws. Nevertheless, as an alternative of the usual M2 hex screws, these motors use these tiny M1.3 Phillips screws. This caught me off guard. Whereas it technically works, it feels low-cost and fewer sturdy, and the small screw are a lot simpler to strip.

I additionally bumped into points when mounting the propellers. There was a 1–2 mm hole between the prop and the highest of the motor bell, and the prop merely wouldn’t seat absolutely down regardless of how arduous I pushed. Ultimately, I needed to enlarge the outlet within the prop hub utilizing a 1.5 mm drill bit (the motor shaft is 1.5 mm). It was a bit of irritating and can be unimaginable to resolve with out the precise instruments.

Flight Efficiency

Instantly, I used to be a bit of dissatisfied that DarwinFPV lowered each the scale and energy of the BabyApe. The V2 was already very light-weight and comfortably beneath 250g anyway. My guess is that they had been attempting to make the V3 as low-cost and minimal as doable—and it exhibits.

In flight, the BabyApe V3 is noticeably slower than different 3-inch quads I just lately reviewed, such because the Seeker3 and RATE S30, though these are considerably heavier. That is anticipated: the BabyApe V3 runs on 3S and makes use of a lot smaller motors. The lowered energy and lighter weight additionally imply it struggles extra in windy situations. Even in 15mph wind, it was barely transferring in a headwind and consistently being pushed round.

Flight video, 0:00 – 1st flight with Darwin 3S 500mAh LiPo, 4:27 – 2nd flight with BetaFPV 3S 550mAh LiHV

That stated, it’s nonetheless a reasonably agile and nimble quad. It’s nice for fundamental freestyle, proximity flying, or ripping round timber and obstacles. In fact, it’s not as succesful as extra highly effective choices for aggressive freestyle, nevertheless it’s nonetheless plenty of enjoyable to fly. And due to the decrease energy, it’s comparatively quiet, though the sound is fairly higher-pitched—nearly like a wasp.

Vary is first rate and 1km+ needs to be achievable in principle. The true bottleneck is the VTX antenna placement. It sits instantly in entrance of the battery, which blocks the sign when flying away, leading to noticeably worse video. As quickly as you flip sideways or head again, the sign improves instantly. This significantly limits most vary. On high of that, the drone makes use of a linear-polarized antenna. When you’re utilizing circularly polarized antennas in your goggles (which most individuals do), you’re mechanically dropping round 50% of sign. With that stated, it’s completely flyable at shut vary, however if you happen to plan to fly past 500m, upgrading to an longer circularly polarized antenna would make an enormous distinction.

Digicam picture high quality isn’t nice, nevertheless it’s flyable. Readability is appropriate, however the picture seems a bit too darkish, even after rising brightness to 100% in my goggles.

The included DarwinFPV 3S 500 mAh LiPo labored advantageous, however the BetaFPV LAVA 3S 550 mAh was clearly higher by way of each energy supply and flight time. With the Darwin battery, I used to be instantly getting low voltage warning when doing punch out initially, however the BetaFPV battery held up rather well.

Flight time with the Darwin 3S 500 mAh battery is round 4–5 minutes. With the BetaFPV 3S 550 mAh, I used to be getting nearer to five–6 minutes.

The BabyApe III ships with a customized PID tune, however the filter settings are principally left at default, so there’s positively room for enchancment if you wish to fine-tune it. Nevertheless with out reminiscence for blackbox this turns into a difficult job.

Tips on how to Setup

• FC Firmware: DARWINF4SX1280HD, Betaflight 4.4.2
• ESC Firmware: Bluejay (BETA), 0.14, 48kHz

Betaflight Setup

• The drone runs “props in” (normal motor path)
• Configuration Tab: the drone has no beeper, so ensure to setup DShot Beacon
• PID Tuning tab: Set your personal charges
• Receiver tab: Enter your personal binding phrase
• Modes tab: Setup switches for Arm, Angle mode, Turtle mode and Beeper
• OSD tab: Customise it to your choice (it makes use of NTSC format)

Conclusion

To be utterly sincere, this quad is affordable—and it feels low-cost. The {hardware} and QC aren’t the best, and you may inform DarwinFPV minimize corners wherever doable. The battery becoming challenge can be annoying, and the VTX antenna actually wants an improve. That stated, it does fly fairly properly for a quad that prices solely $145.

Get your Darwin Child Ape 3 from:

Personally, I nonetheless choose the BabyApe II (V2). It’s rather more highly effective and flies brilliantly out of the field. The V2 is roughly the identical value because the V3 and nonetheless beneath 250g. I believe it’s nonetheless out there from each AliExpress and DarwinFPV, in order that’s the one I’d suggest as an alternative.

Get the Darwin Child Ape 2 from:

That stated, the V2 is louder and considerably quicker resulting from its greater energy. When you choose a quieter, extra tame, and simpler to manage micro drone, then the BabyApe III (V3) should be the higher selection for you.