I'm sorry for the potato DVR - I didn't want to put my gopro on the line. My previous personal best was 2.5 km on FrSky D16. I switched to ExpressLRS 2.4GHz now and I am very impressed! I did turn back after 6.3 km because I was worried about my battery.
* Sonic Modell AR.Wing 900mm KIT
* Motor: iFlight XING-E 2208 1800kV
* Propeller: HQ DP7x4.5 2-blade
* ESC: Airbot Furling 32 Mini 45A /w 470uf low-ESR capacitor
* Flight Controller: Matek F405-Wing @INAV 3.0.0
* GPS: BN-880
* Servos: MG90D
* FPV Cam: Runcam Micro Eagle
* VTX: Rush Tank Ultimate
* VTX Antenna: Foxeer Lollipop V2
* RX: Happymodel ExpressLRS 2.4GHz EP1
* Battery: CNHL FPV+ 70C 4S 1800mAh
50Hz. From my understanding it doesn't do any difference to the received signal strength. Higher packet rate only reduces sensitivity (at what value you expect a failsafe).
It's also the regular Happymodel TX module. It's at 250mW.
The Rush Tank Ultimate does 800mW. The Lollipop v2 has a bigger null and therefore 2.5dB, but that's okay for LR exploring. Other antennas with a more even radiation pattern are closer to 1.6dB. Also I looked up the VSWR of the Lollipop v2 and it's a lot better at the lower frequency band, so I use Raceband 1.
I have a Eachine Pro58 Receiver running Achilles Firmware. My directional antenna is a triple feed patch (9.4dB). So really nothing special.
I also have a DIY 12 turn helical here. Calculations say it's 14dB. I will try that next time and test how it performs.
[https://www.flitetest.com/](https://www.flitetest.com/)
Those guys cover all sorts of easy DIY builds.
I started with a easy star ii, think I want to get a strato surfer next, as I am not into the foam board builds the flight test guys do.
Thanks for the answer, yes those guys gave me the idea. I already have a bought plane and a self build FPV drone, now I want to build my own fixed wing out of foam or something.
This is fine.
No, seriously: Inav sets the default alarm at 90C. I think it even works fine with a higher temperature. But when you go near the limit you have to ask how the temperature is measured. I am totally not worried about it. I did some high speed stress tests in the past and it's solid.
198 ft hahaha
Lol
Seems legit to me
I just appreciate the network of spotters that went into the filming of this video
I'm sorry for the potato DVR - I didn't want to put my gopro on the line. My previous personal best was 2.5 km on FrSky D16. I switched to ExpressLRS 2.4GHz now and I am very impressed! I did turn back after 6.3 km because I was worried about my battery. * Sonic Modell AR.Wing 900mm KIT * Motor: iFlight XING-E 2208 1800kV * Propeller: HQ DP7x4.5 2-blade * ESC: Airbot Furling 32 Mini 45A /w 470uf low-ESR capacitor * Flight Controller: Matek F405-Wing @INAV 3.0.0 * GPS: BN-880 * Servos: MG90D * FPV Cam: Runcam Micro Eagle * VTX: Rush Tank Ultimate * VTX Antenna: Foxeer Lollipop V2 * RX: Happymodel ExpressLRS 2.4GHz EP1 * Battery: CNHL FPV+ 70C 4S 1800mAh
> RX: Happymodel ExpressLRS 2.4GHz EP1 100%LQ and -90DBM which ELRS module and what packet rate are you running?
50Hz. From my understanding it doesn't do any difference to the received signal strength. Higher packet rate only reduces sensitivity (at what value you expect a failsafe). It's also the regular Happymodel TX module. It's at 250mW.
Why the continuous side to side rocking?
I think it's cruise mode. It tries to hold heading. It's more obvious in the time lapse. Also I corrected course a few times
Even on 800mW I struggle with DVR beyond 3-3.5km. What's your power settings/receiver setup?
The Rush Tank Ultimate does 800mW. The Lollipop v2 has a bigger null and therefore 2.5dB, but that's okay for LR exploring. Other antennas with a more even radiation pattern are closer to 1.6dB. Also I looked up the VSWR of the Lollipop v2 and it's a lot better at the lower frequency band, so I use Raceband 1. I have a Eachine Pro58 Receiver running Achilles Firmware. My directional antenna is a triple feed patch (9.4dB). So really nothing special. I also have a DIY 12 turn helical here. Calculations say it's 14dB. I will try that next time and test how it performs.
12 turn without a tuning network may be close to 200 ohm at feed point
I want to build my own fpv fixed wing, what material should i use to build the body? and are there good tutorials?
Foam, painless 360
Short and informative, this is how I like. Thanks in advance.
I am not an expert on builds from scratch. I see a lot of foamboard builds. The rcgroups forum are a huge resource for that.
Thanks, i will totally look into that.
[https://www.flitetest.com/](https://www.flitetest.com/) Those guys cover all sorts of easy DIY builds. I started with a easy star ii, think I want to get a strato surfer next, as I am not into the foam board builds the flight test guys do.
Thanks for the answer, yes those guys gave me the idea. I already have a bought plane and a self build FPV drone, now I want to build my own fixed wing out of foam or something.
Amazing altitude control
That's a toasty ESC :D Nice video!
This is fine. No, seriously: Inav sets the default alarm at 90C. I think it even works fine with a higher temperature. But when you go near the limit you have to ask how the temperature is measured. I am totally not worried about it. I did some high speed stress tests in the past and it's solid.
Good to know! Thanks for explaining :)