12 Km from home long range flight with DJI FPV system, Chimera 7 LR frame and massive Li-ion battery

Video of a 12.3 km / 7.6 miles long range trip with the Chimera 7 LR & DJI FPV system. There’s potential for even more distance!

*DISCLAIMER*
THIS VIDEO WAS SHOT IN ACCORDANCE WITH ENAC AND EASA REGULATIONS.
I AM NOT AFFILIATED TO ANY COMPANY, I AM JUST AN ENTHUSIAST AND I BUY ALL MY PRODUCTS.

Video feed is from DJI Air Unit. Check the separate video with the DJI OSD data from the DJI Goggles until video breaks up : https://www.youtube.com/watch?v=nIf_yg9fJns

The overlay was made using Dashware, joining the logs from the goggles and the opentx telemetry. Credits to Drone racing Hungary:
( https://droneracehungary.hu/dji-srt-tool/ ) and Snappy FPV ( https://www.youtube.com/watch?v=7UY5R80u8QE) for their tools.
See my tutorial video : https://www.youtube.com/watch?v=P45cLDBmBGk

Antennas used on goggles :
- 2x prodrone.pl helical 12 turn 14 db ( https://shop.prodrone.pl/pl/p/PRO-Helical-antenna-12-turn-5.8-GHz-14dbi-v2/332 )
- Truerc 5.8ghz Sniper II 13.5 DBi ( https://www.truerc.ca/shop/5-8ghz-2/receiver-long-range/sniper-ii-5-8 )
- RC 5.8GHz 14dBi Circular Polarized High Gain Flat Panel Antenna ( https://www.banggood.com/ZRC-5_8GHz-14dBi-Circular-Polarized-High-Gain-Flat-Panel-Antenna-SMA-or-RP-SMA-LHCP-or-RHCP-for-FPV-Transmitter-p-1530381.html )

Images of my gear (goggles, drone, radio) : https://onedrive.live.com/?id=4E7DDD48D75DE089%2130110

Distance of test : 12.3 Km / 7.6 miles at the point where i turn back. I did this flight by myself without a spotter to help me keep the perfect orientation with the goggles. This, together with a lower altitude, is the reason why video bitrate is lower than previous 10km flight on the same path: https://www.youtube.com/watch?v=tnJZ0ULwzHo .
I lost video signal after the turning point, because I oversteered and I was flying sideways, which is the worst position for the antennas, otherwise it would have been fine. I recovered video signal a few seconds after, and turned off GPS rescue continuing my trip home.

Drone : Chimera 7 LR ( https://shop.iflight-rc.com/index.php?route=product/product&product_id=1386&search=chimera+7 )
Weight all-out in this test was 1.434 grams.

Motors : 4x T-motor F90 1.300kv long range ( https://www.banggood.com/T-MOTOR-F90-5-6S-1059W-1300KV-Brushless-Motor-for-6-or-7-or-8-Inch-FPV-Racing-Drone-Multirotor-Multicopter-RC-Drone-p-1737906.html)

Props : Gemfan flash 7040x3 ( https://it.banggood.com/2-Pairs-Gemfan-Flash-7040-7x4-7-Inch-Long-Range-3-Blade-Propeller-Support-POPO-for-RC-Drone-FPV-Racing-p-1520190.html ).

ESC : Mamba f60 PRO ( https://www.diatone.us/products/mamba-f60pro-dshot1200-4in1-esc-60a-6s-30-30mm )

FC : Mamba F722S blutooth ( https://www.diatone.us/products/mamba-f722s-flight-controller )

Battery : 6s Li-On 6s2p 8.000Mah, 21700 Samsung INR-40T cells (https://www.farinsframes.com/6s-8000mah-40a-21-6v-6s2p-li-ion-battery-pack/ )

BN-220 GPS ( https://it.banggood.com/Beitian-Dual-BN-220-GPS-GLONASS-Antenna-Module-TTL-Level-RC-Drone-Airplane-p-1208588.html ).

Radio : Radiomaster TX16S ( https://it.banggood.com/RadioMaster-TX16S-Hall-Sensor-Gimbals-2_4G-16CH-Multi-protocol-RF-System-OpenTX-Mode2-Transmitter-for-RC-Drone-p-1652191.html )

JR Module : TBS Crossfire TX lite ( https://www.team-blacksheep.com/products/prod:crossfire_tx_lite . I set it to 2W but forgot to connect the lipo battery to the module, so it stepped back to 500mw and that’s the reason for some link quality dropouts. Now I configured the tx16s to continuously play a warning message if I forget connecting the radio lipo to the tx module.

Radio antenna : TBS shapeshifter ( https://www.team-blacksheep.com/products/prod:vas_shapeshifter_900 ) , set in vertical position and in directional mode.

Receiver : TBS crossfire diversity nano rx ( https://www.team-blacksheep.com/products/prod:xf_nano_div_rx ) set at 8CH. Dynamic power set to off, because i want it to always work at the output power that i select in the radio.

RC Link antennas : 1x Truerc planar bazooka dipole 868mhz antennas vertically placed at the back ( https://www.truerc.ca/shop/linear-antennas/900mhz-2/truerc-bardpole-868-mhz ) set at 20 degrees, and 1x stock dipole antenna horizontally placed at the front

Video antennas : 2x tbs triumph pro (long range) ( https://www.team-blacksheep.com/products/prod:triumph_pro_sma_lr ).

Dji unit settings : 1.200mw, 50 mbit, High Quality, 4/3 screen, autofocus off, power control on

Betaflight main settings : 4.2.8 firmware
PIDS : multiplier 1.1
Filters settings sliders : 1.8 / 1.8, RPM filters ON.
ESC settings : 48 PWM, timings 11 (my tests with a power meter show that those settings allow for a 7% less power consumption vs the standard 24 PWM / 16 degrees timings)

Battery after the flight was not totally discharged, i have space to try a couple Km longer flight next time.

See you in my next 14 km adventure, stay tuned.

Видео 12 Km from home long range flight with DJI FPV system, Chimera 7 LR frame and massive Li-ion battery канала Fab FPV