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TEST: RealAcc Horns 100, first 3D FPV micro FPV brushless racer


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INTRODUCTION

The RealAcc Horns 100 is probably one of the most original FPV racer I ever reviewed. Why ? because it’s a 3D FPV model. First if you don’t own the Skyzone Sky02S V+ goggles, it’s useless to read this review. The Horns 100 is only compatible with these goggles. It’s not supporting any 3D goggles using SBS (Side By Side) technology (Fatshark, Aomway). So the Horns 100 is a 2S 100mm brushless micro FPV quadcopter with two 600TVL 25mW 48CH AIO FPV systems seperated of 60mm for the stereoscopic effect. The other electronic elements are now classic: F3 omnibus FC with a buitin OSD, 10A BLheli_S/Dshot600 ESC in a 4-in-1 board, a buzzer. Four choices or receivers are proposed: i) FrSky D8 w/ RSSI channel, ii) FrSky D16 w/ RSSI channel, iii) Spektrum DSM2/DSMX and iv) FlySky AFHDS-2A. I will review the FrSKy D16 version. Let’s check this bundle.

BOX CONTENT

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+ 1 x RealAcc Horns 100
+ 1 x 450mAh 2S LiPo Rated 80C
+ 4 x Spare props (2 CW, 2 CCW)
+ 4 x Rubber band (for the AIO camera)
+ 2 x Spare double side tape circular band (for fixing the AIO on the camera support)
+ 1 x USB to miniJST cable
+ 1 x miniJST to microUSB extender cable
+ 1 x Velcro band
+ 1 x Screwdriver
+ 1 x M2 allen key
+ 2 x Instruction manual (English)

Among accesories, we can find some spare screws for attaching motors to the frame of AIO camera to the carbon plate and some hexscrews for the props. A small velcro bands to fully secure the battery installation and four small rubber bands to hold perfectly both cameras

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OVERVIEW

The general design is original. A long central carbon frame with rear motors installed upside down probably to avoid any contact with respective props and cloverleaf antenneas. Good news, all carbon elements are 2mm.. and look solid. The machine comes with props and AIO cameras not installed. Use the M2x4mm white screws for the two AIO cameras and the M2x7mm for the props.

Both front and rear are 2mm

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also the vertical sides

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Even the carbon plate holding both camera seems relatively solid.

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Obviously the rear props will be probably more potentially breakable due to their respective positions. The inversion of rear motors changes nothing in the prop installation layout compared to a classic quadcopter. “R” props for front left and rear right, “L” for front right and rear left.

-FRONT VIEW
The look is great, a kind of rhino IHMO with two excentred eyes.

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the main originality of this machine is the presence of a dual AIO FPV modules

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separated about 60mm

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more or less the same distance betwen two human’eyes

-SIDE VIEW
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The left side welcomes the 1mm 4position microJSB connector in order to connect the Horns 100 to betaflight

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The presence of this connector means we have the V1.1 of the Eachine Minicube (eliminating completly FoD ?). Just above it, the FrSky D16 receiver installed on some small piece of foam.

Versus the Scops 100, no yaw board ajustement must be configured/corrected.

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The FrSky D16 received is installed just above the F3 Omnibus board on some circled piece of foam

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The bind button is almost invisible can be found in the lower right position of the reciever. As for all FrSky receiver, to enter into the bind mode, keep pressed this tiny button with a screwdriver for example while powering the machine. Think to turn on the RSSI in the last channel on your radio options if you want to enjoy of the RSSI in the OSD interface.

-REAR VIEW
The two antenneas of the FrSky Receiveer are really long. They installation should be secured with zipties and heatshrink tubes for example.

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No rear lights compared to the Aurora’s series.

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-UPPER VIEW
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The buzzer is well enclosed into the frame

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-BOTTOM VIEW

To secure the battery installation, the battery strap is not enough, too thin in practice. To proceed, you will need to untight the four bottom hexscrews and the M3 model.

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You will need also to use the velcro band provided in the bundle to completly secure the installation.

-WEIGHT
With the battery, strap and velcro band installed the machine is about 107.7g

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So for a simple 2S setup it’s pretty heavy. In comparaison, the aurora 100 weights 94.3g so close to 13 extra grams. It will impact for sure both thrust and flight time capacities

Motors and props

M2 x 4mm screws hold each motors

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some 1104/7500Kv…. . Should be still ok for 3S setup but you need probably to have the lowest D values you can.

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The same pentablade 2035 (50mm) props we can find in the RealAcc scops 100, bundle this time in orange color

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LiPo

In practice, it’s exactly the same 450mAh 2S LiPo battery provided in the Aurora 90/100, announced to have 80C as discharge and comes with a JST connector.

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FPV-Camera module

The same AIO FPV module we can find for all the last Eachine/RealAcc models with a 600TVL CMOS camera + 25mW 48CH 5.8G VTX. In practice, the light sensitivity is about 1Lux. The FOV about 120 degrees, so perfect for outdoors flights.

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Each AIO camera must be completly secured by two rubber bands

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The rigth module will be plugged to the OSD system. So if for any reason, you want to fly in none-3D mode, pick up the right AIO Vfreq on your FPV ground station.

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The setting of this AIO module can be done by two tiny switch button. The front one is long pressed select either NTSC (default) or PAL format. The rear one if shortly press select one of the eight Vfreq Inside the current Vband while if long pressed you can cycle Inside the six supported bands. The blue light is associated to the bands while the greean for the frequency index.

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UNBOXING, ANALYSIS, BINDING, CONFIGURATION AND DEMO FLIGHT

The assembling of the props and the two AIO cameras take only a couple of minutes. Be aware to no break any wires for the camera during the installation.
No problem to insert the microJST connector for USB connexion even with the props installed. The F3 omnibus comes with BF 3.1.0 installed. Except the receiver part, no specific optimization have been done. We have the default PIDs; rates and OSD layout.

At least the board alignement is correctly set to 0 degrees. No bad surprize at take off like it was for the scops 100. When the battery is installed, the battery strap thickness forces the machine to be bent forward. It’s not a big drame and I would say it’s even more a good news for the rear props protection, at least for take of.. The bind button is a little bit hard to reach and the binding procedure more tricky consequence.

For the 3D configuration, we must select two Vfreqs for the left and right channels respectively. I advise to use more two racerband Vfeq to minimize as much as possible the interférences between the two sources emitting simultaneously. In practice, I used more two boscam Vfreq without any particular interférences … Inside a radius of 50m

As epected with almost 108g, the Horns 100 is not as powerfull than the Aurora 100 for sure…. it’s not castrophic and can still perform some figures without problem but clearly you feel more inertial. With Betaflight 3.1..7, the machine responds pretty well, it’s stable no need to speed a lot of hours to tune PIDS. Let’s focus to the most important part of this review and try to answer: Is the 3D immersion effect effective ? and the answer is YES !!!! for any obkect between 1m up to 10m. Clearly this machine must be used in park with a lot or trees, branches, flowers. You can really separate the foreground objects with backgrounds ones. Branches, flowers seems to “jump” on your face… It’s impressive. If you get altitude, the 3D effect is null … Unfortunatly, we can notice the presence of Jello in the FPV video. Be sure to completly secure the AIO with rubber bands but the carbon camera plate must introduce some extra vibrations in the system. The flight time are disapointing with the 2S 450mAH… 3min 🙁 :(. This machine must be pushed into a 3S setup… what a pity there is no XT30 connector instead the JST one.

CONCLUSIONS

A very original model but with a very limited potential audience reserved only actuallu for the SKY02 V+ owners. The 3D immersion of the Horns 100 works admirably for any object situated in the (1m-10m] range. The 3D FPV signal is crips and if you like low riding flights arounds trees and branches, the 3D immersion can bring something really interesting; The Horns 100 is not a bad quadcopter but with 3 poor minutes of flight time, it limit the fun. The 2S setup choice is guilty here. I am not afraid that 3S LiPo can be plugged instead to boost both thrust and flight time.

PROS

+ Efficient 3D immersion for [1-10m] objects
+ Original design
+ F3 Omnibus w/ OSD
+ FrSky D16 w/RSSI (telemetry & OSD)
+ Solide frame
+ Great control range
+ BLheli_S/Dshot 600
+ Spare screws

CONS

– Lack a bit of power in 2S
– Short flight time (3min)
– 3D immersion compatible only with the Sky02S V+ goggles (not compatible with 3D SBS)
– A bit of jello

dump_RealAcc_horns_100

This quadcopter have been courtesy provided by Banggood in order to make a fair and not biased review. I would like to thank them for this attitude.
You can find it actually for 164USD at https://www.banggood.com/Realacc-Horns-100-Micro-3D-FPV-Racing-Drone-BNF-Dual-600TVL-Cameras-5_8G-25MW-48CH-VTX-F3-OSD-p-1151159.html

Cet article TEST: RealAcc Horns 100, first 3D FPV micro FPV brushless racer est apparu en premier sur Drone-Maniac !!!!!!!.

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