How well does Betaflight 4.2.0 RC1 fly? Freakin Amazing!
Channel: LocoBee FPV
Date: 11/05/2020

It was an extremely gusty day with 20mph+ gusts and I wanted to try out new firmware and long range performance. The new betaflight 4.2.0RC1 firmware handled it like a champ. I had zero jello and propwash through my fpv feed. The gopro session 5 camera is a different story and you can see some jello still, but it is even better than what I had been able to achieve on previous firmware versions on calm days. Most of this is the fault of the session camera. 



 Default PIDs and filters and no oscillations on hard maneuvers. There were still some slight mid throttle oscillations, but practically non-existent. One new firmware bug I experienced was that for every other pack I plugged in, the OSD section for GPS Coordinated/Sats failed to boot. It required a extra plug in/reboot a few times. The only one tuning change I made other than adding in my rates from the default firmware is that I added dynamic idle at a value of 11. My motor idle rpm at the default 5.5% idle speed was between 1380 and 1450rpms between my 4 motors (two of my motors spin quite a bit slower at idle..). Betaflight devs recommend a lower value of dynamic idle to be safe from de-sync so I calculated based on 20% of the lowest rpm motor at idle. 1380x20%=276. 1380-276=1,104rpm. Now the recommended dynamic idle value is 1,104 divided by 100 = 11. 



Flight time was pretty decent despite the wind. I was able to go out 1km+, come back, and still have a some good freestyle for total flight times between 4:30 to 5:00 minutes. On a less windy day I'd estimate 6 minute flight time.



Music          
Aviated by Nana Kwabena
                                              

GEAR
Armattan Marmotte 5" Frame 
Pyrodrone Hyperlite F4 FC 
iFlight SucceX 50A 4 in one esc 
BN-220 Glonas GPS 
Runcam Micro Eagle Rotor Riot/Joshua Bardwell Edition 
iFlight XING 1700kv 2306 Motors 
1300MAH 6S LIPO
Lux Mini VTX 
TBS Nano Diversity RX 
Lumenier Indestructible Strap 
TBS Immortal-T RX Antennas 
VIFLY Finder V2 Lost Drone Beeper 
Brain 3d Gopro Session Mount for Marmotte 
Ethix S5 3-Blade Props
FATSHARK TRANSFORMER GOGGLES
VAS OMNI ANTENNA
TARANIS X9D+
TBS DIAMOND TX ANTENNA


Video Transcript:
"Hi everybody, I am filming with my gopro on my quad. There goes my girlfriend Kristin. This is Loco-Bee FPV, my name is Brent, and we're gonna fly this spot today. It is pretty sick, there's a big open prairie land field. We got this nice pavilion over here. So, yeah, hope I don't wreck a quad or anything today. It's a little windy out, but we're gonna see if we can still send it.


So this is my unofficial review of firmware version 4.2 release candidate 1. It is amazing. So incredibly smooth in the wind, like unbelievably smooth. No propwash. It is really gusty out here today, it was just a little bit earlier and I was flying in it, and it's just, I can't believe how smooth it is. Get it, and uh try it."