Spash
lvl.1
Czechia
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I don't see this mentioned much and even asking other owners can lead to surprising "hmm, I have no idea" answers, so adding my "real world" experience that may potentially help some people decide if Avata 2 is a good drone for their needs:
At some occasions I use Avata 2 as a sort of 'urban exploration' drone, which means lot of turning, braking, but mostly slow flying through trees, around bushes, scattered rubble, behind concrete or brick walls, over solid floors and [somewhat reluctantly, but still] shallow cellars... Reluctantly because of Avata's inability to properly hold position in low light conditions, you can lose your drone easily by having it dart from a stop to nearby wall at full speed as it just randomly decided it would be a fun thing to do right now. Generally not a good scenario when in a place with an access impossible in person, or otherwise very hard to get to and save the drone from drowning.
My best run time is 12-13 minutes (with video recording at 2160@60) until the forced landing at <5% battery.
Now, why this is a decent outcome:
1. The drone runs with the FCC hack on, boosting radio power significantly compared to CE (this in turn adds to battery consumption and while I've seen claims of some 3-4 minutes difference, my observation would be about an extra minute at most. Mileage may vary depending on conditions and I didn't test this somehow thoroughly, simply taking FCC as the go-to option, regardless of consumption differences, which are not significant enough to matter). While FCC is not strictly necessary as the radio is still "good enough" in CE for most situations, you probably want to ensure penetration and don't want the drone to randomly decide to return home straight through the roof or a nearest wall because it lost signal for a second.
2. Giving the typical spaces involved, the drone has some extras attached to it - propeller bumpers, aluminium gimbal protection bars, additional mount brackets on top and bottom (can be used for spotlight, extra camera, etc - but these are not calculated in the number above), aluminium motor protection shells, landing support legs (Avata's propellers are very close to the ground, which can be incompatible with scattered rubble - some extra ground clearance always helps.) Even if each extra piece attached to the drone is "just a few grams", in the end this adds to about 15% total weight increase and likely throws out balance in some way, increases drag, maybe adds vibrations that need to be compensated by the motors running at extra power and so on.
3. As also stated in posts earlier, if you did not charge your batteries freshly before the flight, the capacity can be unpredictably lower sometimes - I've observed a battery claiming to be full then go down from 100% to 82% in a matter of seconds until it "settled" on the new percentage and continued properly afterwards.
Now, the worst case scenario when crossing larger distances, up hills, in strong winds - is still about 8 minutes of fully controlled flight. Some extra minutes need to be reserved for return time while the battery charge can be dropping very fast (as you're pushing quickly back home, not realizing this is making the situation even worse). If you miscalculate one or the other way and run it to empty battery somewhere over a dense forest, you're not ever going to find the drone again. So assuming "close to 10 minutes, but something below that, 8-9 to be safe" in windy hills is about a right idea to have. Then of course, for flying over hills you may want to strip away any rugged parts to lose that extra weight, but this is not always very practical with screws (which usually change the original DJI screws for different lengths fitting the extra mods and you probably don't carry several sets to swap them on the go for every situation).
So anyway, of course the advertised "maximum flight time" of 23 minutes is nonsense, even a freshly unpacked vanilla Avata 2 (clean, pristine propellers, no damage, no mods, freshly topped battery, etc.) doesn't come anywhere near that. But if you can settle for half of the advertised 'paper time' in exchange for a decently rugged drone setup with very good signal penetration, then Avata 2 can fit that bill. I also use a DJI Neo with similar setup (added bumpers, gimbal protectors) and in the same scenarios can generally last about 50% longer before running empty, making it to around 18 minutes. But of course with the much worse overall performance and the bad camera that comes with Neo (and other downsides like no SD card, etc.)
(And just in case, before someone comes with "hurr durr radio spectrum laws, VLOS regulations, spotter, etc." - all my mentioned tests were conducted on a deserted island in the middle of the Pacific ocean on a private indoor property inside a closed hangar. There you go.) |
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