Ultra Light O3 Air Unit - Flywoo O3 "Lite"

[@TRONCATFPV]

Update: I see a handful of people asking about overheating. If you let the drone sit plugged in, yes it will overheat. Even with a full sized O3/Air unit/ almost any VTX, If you plug it in and just let it sit there, after a while it will start to overheat since there's no airflow lol. A Few days ago I installed this Naked O3 in a QAV nano (2") build and have flown it multiple times with no issues. Keep in mind the QAV pro frames are extremely open and allow a lot of airflow. Also worth mentioning, once I plug in a battery the drone is in the air within 20 seconds or so. With that said, I haven't seen an overheating warning with this Naked O3 yet. If you use this in a more enclosed frame where the Air unit doesn't get airflow I could see it easily overheating.

[@B4LOoO]

Little question tho, you apparently waited 3 min to take off on the LR4 review , how did you manage the heat while waiting for the gps to get a good signal ? Thank you for all your work my good sir

[@TRONCATFPV]

@@B4LOoO on a drone like the LR4 I did that because it needs to get satellite lock. You can also just plug in USB to get sat lock so your VTX doesnt potentially overheat.

[@DominionDroneDaily]

I havent even gotten an overheating warning with a full aka clothed o3!

[@jameslaraia]

Great content. To everyone worried about overheating, this is exactly what happened with the vistas and the naked vistas when they came out. They just need airflow, and they wont overheat. If you're flying, there's nothing to be worried about.

[@KOrnhOliO1]

Yes, Naked Vista works great!

[@leonardothillet6423]

Hey bro, have you tried waterproofing the O3?

[@big-smoke-rc]

Isn't the exposed thermal paste going to just attract dust and trash, eventually making the o3 overheat even more?

[@genjitsu7448]

Excellent instructions and information for how to do this work. I am wondering though, how much durability is lost due to this conversion? I can imagine some scenarios where the change would be minimal - that would be in a drone that really does an outstanding job of protecting the camera and air unit. Dropping 19 grams could be a real difference maker for some builds. But that is the tough question - what are your goals? A sub 250g quad? A high performance over all, or a tough and durable setup... these optimization questions are not easy, and it is easy to be tricked, or not be able to take into account all of the variables that will be a part of how it is used.

[@genjitsu7448]

i have a question - I do see your post on the topic of heating but I still have some questions. I am wondering if since the thermal paste has been removed and some of the heat sink plates are also removed did this cause any problems (you do not indicate any) You mention the good airflow on the frame, that makes sense. But I wonder if there is something that could be improved... or is it simply fine and it runs without any problems, then OK nothing to fix. Any chance you took thermal values before and after? The reason I am asking is because of this - On my 2Fiddy I added a heat sink to the DJI vista air unit and to make sure I got the most out of it i used thermal paste and a thermal pad between the air unit and the heat sink. The heat sink was the one from IFlight designed for use with the 03. With very minor mods it also can fit the vista's. BUT i am much more of a builder than a flyer - so i do not have use or flight data on how warm the air units were getting before I added this modified heat sink - because I have not flown this quad yet... And I have questions - I mean is the heat sink even on the right side of the housing to do anything of value? - that is to say is one side of the housing typically warmer than the other? Should the vista be flipped over? Or perhaps it needs, or could benefit from heatsinks on both sides of the housing. Why not? Adds a bit of height but with some creative design decisions it can be integrated very nicely. I guess the question is this - is it going to run cooler in the naked configuration because of the improved air flow around the PCB's or would it stay cooler if we were using well designed heat sinks??? And sorry for the long post, I hope you had the time to read. Cheers!

[@wesleyooms]

Instead of overheating and shutting down, they should make a feedback loop to drop the clock speed and number of computations per second. That would be a much more elegant way of solving the issue.

[@MovingCameraChannel]

I think removing the radiators will cause overheating. The previous comment confirms my speculation. Thanks for showing the process. I don't think it's worth it. I'm not undressing the o3.

[@TRONCATFPV]

Of course if you plug in the drone and let it just sit there it will overheat. I have mine installed in a QAV nano where it gets great airflow and I haven't had any overheating warnings. It performs very well on the right build. On a build with minimal airflow I could see having problems.

[@KOrnhOliO1]

​@@TRONCATFPVBut, the problem is simply it shuts down, right?

[@IosuSegura]

That good video ! Do you know anything about how to waterproof the o3?

[@nicholasiotti3672]

The mod is pretty cool but the Flywoo site advertise overheating alert around 3:30 min, quite a small window to work

[@seriouslycoolful]

What happens when it overheats? Seems perhaps not so worth it to gain whatever battery/manoeuvrability from taking the heat sink off

[@TRONCATFPV]

I'm not really sure why anyone would plug any VTX in and just let it sit there for 3:30. I feel like regardless of if the O3 is naked or not that's just not a good idea in general lol.

[@pumachabra]

The review we were all waiting for.... Troncat strikes yet again!

[@sethu.uumez-eronini7339]

Do you think the Naked 03 unit could be mounted on GepRc Cinebot 25? The question is for weight management to enable larger batteries while staying under 250g

[@glitchunicorn]

nice! that would work great with the Mobula8

[@cloudpandarism2627]

i am curious how much flight time will a mod like this actually give you? no estimates if you hover in one spot until battery is done. but real world scenario. 30 seconds? a minute? or 5 min? what are we talking? smallest quad i own is 4" so saving 15gramms will give me zero advantage. i do understand every gramm counts but how much?

[@willpowerfpv3246]

As you've said, it entirely depends on the craft. I ordered the same kit to shave 20 total g off of the mobula 8 03, because it flies incredibly heavy right now. It's 80 g dry, so removing 20 g from it, is a significant almost 25% weight reduction. That will not only increase performance but also flight time. I put a naked Vista in a 5-inch before, because I was trying to save as much weight as possible for an experiment. In that case, the weight savings were negligible, so I also ended up adding a bunch of LEDs to offset the weight of the extra Vista parts, after I realized that I wasn't blown away by the 9 g I saved. This is going to be fantastic for micros 3in and below, but would probably also be helpful if you were doing a sub 250 cinewhoop or a little full featured long range. Will never get down into walksnail or hd0 territory, but this is almost the exact same weight as a naked Vista with the OG DJI cam. To me, this is totally acceptable weight for the best video feed in existence. 😁🤙🏻

[@cloudpandarism2627]

@@willpowerfpv3246 plus best video quality in existence right now. yes when total quad weight is 80g it makes alot more sense of course. as i said i mever flew anything super lightweight yet. i like raw power but finessing every gramm of weight off for better performance looks interesting too. right now lipos are the biggest weight i guess. using lightweight HV lipos should also help. same for higher voltage. cable size can be reduced alot. i recently saw that on my electric paramotor project where i could reduce weight over 1,5kg just by increasing voltage to 24s and change all 6AWG wires + plugs to 8AWG and much smaller plugs. its interesting how much ideas came out by trying to save weight. back to the O3. did you already test fly it? how the O3 handles heat without thermal paste now? i guess you dont need full VTX power anymore when you dont need to fly that tiny quad into clouds?

[@TRONCATFPV]

@willpowerfpv3246 worded it pretty good. It largely depends on the build. I have mine in a sub 250g 2" cinewhoop that has a lot of airflow. That 20g took the weight of the drone to 189g which now allows me to put a naked GoPro 11 on board and STILL be under 250g w/ a 4s lipo. Hyped.

[@BoundlessFPV]

Have you conformal coated the naked o3?

[@OGKDOG104]

Can you tell me if this method would work on an old Emax Baby Hawk R? I want to upgrade it to 03 system. I've been out of FPV since covid and I want to explore my options to fly again. I do have 03 support gear.

[@nateteator3901]

Can you drill out the M 1.6 holes to 2 mm? Then, you would have a 25.5 mm hole pattern to slip over the 25.5 mm AIO stack screws.

[@talkola]

hey, i have the o3 ultra and cant get it connected via usb , i have signal in the goggles but cant access the footage from the internal storage, you know what can i do ?

[@willpowerfpv3246]

Great video dude! My kit should be arriving next week, and I'm hoping to shave 20+g off the Mobula 8 03, and hopefully get some reasonable performance out of this little chonky pig..😅👍🏻

[@TRONCATFPV]

I love how its been performing on my QAV nano build! Haven't had any overheating issues yet 🙌 Thing is PERFECT for the Mobula 8 O3

[@willpowerfpv3246]

@@TRONCATFPV mint!! I'm stoked! I've done a few naked Vistas for toothpick builds, so I'm somewhat experienced, but it's nice to have a quality reference video when ripping apart a $300+ cad piece of kit..😅🙏🏻

[@big-smoke-rc]

Looking forward to seeing your results

[@didichung4377]

how about adding mini heatsink to p1 chipset?

[@willpowerfpv3246]

@didichung4377 unnecessary, unless you are flying in the hottest of environments and leaving it plugged in without airflow. I've been flying my naked mob 8 for a month and I've never even come close to overheating. In fact, it actually doesn't feel as hot as it did when it was in the case under the canopy.

[@claugosu8189]

Could you make a video on how to replace this naked air unit with the Caddx Polar Nano Vista? I have the same built as you on the Pavo25 and I was wondering how this would attach to it if I decide to replace. Thank you a lot!

[@Ztall0880]

what about weather ? can we make it water resistant ?

[@zethca]

Hell yeah great stuff - mine is in transit. Will have to rethink my double sided sticky tape mounting solution. Then some durability testing in my 3” freestyle build😂

[@trevorperkins8828]

Have you noticed any difference in overheating versus the regular?

[@TRONCATFPV]

I surprisingly haven't. Then again, I am pretty good about not leaving my quad plugged in when i'm not about to fly. So I usually launch within 20 seconds of plugging in.

[@SegoMyEggo]

Hi! Could you make a 200mph build?? Would be tighhhhht i think ive seen one somewhere but its gone

[@lastepisode8118]

Hi I need your information. I want to install a 75mm whoop. Does the naked o3 aio fit with screwing on the esc?

[@claugosu8189]

I have a question. It is being very hard to find the HGLRC 1303.5 2500Kv Motors in stock. Do you know other variant to use on a 2.5 real estate fpv drone that would yield the same performance?

[@bobk7934]

Would it be ok or a good idea to use 422C Silicone Conformal Coating on the electronics?

[@TRONCATFPV]

that may lead to overheating faster

[@WhitCoburn]

Good video. Will the DJI fpv controller 2 work with this? Thanks!

[@happymodelmobula8]

yeah it should

[@titussby]

what happened after this video end, curious to see once it run without heatsink, is it safe or blown?

[@TRONCATFPV]

Update pinned since a lot of people are asking about this 👍 TLDR: I installed the naked O3 on a 2" Cinewhoop (QAV Pro frame) and haven't had any issues or overheating alerts.

[@KOrnhOliO1]

And, it doesn't really blow, does it? The auto circuit protection kicks in and it simply shuts down. Have some people had theirs blow?

[@mlx83]

hi nice video, but I wonder what happened to the sd card reader, it wasn't mounted or you just didn't record this?

[@TRONCATFPV]

@4:40 😉

[@its-all-harsh]

@@TRONCATFPV Did you install it at the end or just went without it?

[@KOrnhOliO1]

​@@its-all-harshwith our without... Optional. 03 has 20gb on board storage built in. Lots of recording space! 😎👍

[@mlx83]

@@TRONCATFPV thats why I;ve asked because it looks like it was removed and never instaled afterwards

[@happymodelmobula8]

How tall is it??

[@philihc]

My pigeon cable was secured with some kind of glue It destroyed my cable by trying to remove the cable with as little force at possible. So check out before you follow the instructions here, before you destroy yours

[@philihc]

It will also destroy the connector on the board, so be really careful about this mod if you haven't got money to waste On the second O3 I didn't try to loose the pigeon cable, I destroyed the cage, cause it's not needed anymore. It's easier and much less risky

[@KOrnhOliO1]

Great video! Nicely done. Do you have a video showing this Naked 03 and you flying it? Love to see that! 😎🤘

[@TRONCATFPV]

not yet! I'll probably have some in the coming weeks. If it continues performing how it has been I'll probably do a build video on it. QAV nano paired with this flies incredible!

[@WEEBER13]

Fantastic video!

[@PaulieShortcuts]

Does this keep the same specs to mount on anything that accepts a standard 03? That 75mm acrobee is gonna bee fun to fly

[@TRONCATFPV]

If you can mount a full sized O3 to it you'll be able to mount this no problem 👍 The only thing that really changes size is the camera (20mm to 18mm)

[@AileeWang-r9w]

How to contact business cooperation

[@npries4419]

No SD card anymore? :(

[@TRONCATFPV]

Just internal storage on the naked O3

[@dronesrj403]

Esqueceu o leitor de cartão.

[@johncgibson4720]

Wow. 20 grams gives everything.

[@mlentsch]

Gosh... all you guys still giving dji your money. What a shame.

[@TRONCATFPV]

What's a real shame is that there isn't a comparable VTX system out there. The video quality & range plus stabilized 4K footage on board is the best you can get. Correct me if i'm wrong.

[@KOrnhOliO1]

​@@TRONCATFPVYou are Exactly Correct. He must feel a little jealous not having this performance available to his inferior product of choice. Pathetic.

[@KOrnhOliO1]

The shame is you couldn't realize the easy to see Superior performance, reliability, and disability of the DJI FPV system. Far superior to the "other also ran's". But, there are some in this world who run their own race, not caring if they never see the best, always content with second place or a distance turd....ERRRRR.... Third. 🤪🥴

[@FIGFPV]

As soon as someone else makes something better I will keep giving dji my money. Made the mistake of giving hdzero alot of money recently.

[@maxl6058]

Aaand it burned

[@TRONCATFPV]

haven't had any issues with it yet. If you put it on a build with no airflow, you'll probably get an overheating warning. I installed mine on a QAV pro nano build (2" Cinewhoop) and it's been running great!

[@maxl6058]

This is reassuring

[@andyhoughtaling6319]

First bitches!

[@josemiguel5754]

I accept the second place

[@TRONCATFPV]

🙌🙌🙌