How so ? Its reduced by half. Shorly the wing must be tail heavy or is the CG point further from the nose ? Also how do you like chaos vtx (would you say its better then foxeer switcher) ? Last question where did you get cobra motor CP2207 with only 1850kv ?

I balanced the CG according to the CG point on the aircraft that's 120mm from the nose, and although on the bench it felt correct, in flight I found the aircraft wanted to pitch forward a lot. So I removed some of the nose weight untill I reached a point where it flew much nicer. Yes I like the chaos vtx, its smaller and lighter than the foxeer switcher and more powerful too. Only thing I don't like about it is the odd plug that connects the wiring harness. It's not a standard mini jst but some weird hybrid. Not really a probem though. I got my cobra motor from quadcopters.co.uk

Thank you for info. I checked the motor and they have it in stock by delivery is 12 pounds to Slovakia. they are crazy those guys. 12 pounds for delivery of small motor in EU. So I guess no cobra motor for now :) I definitely thinking to get that vtx. Is the range of this vtx much better then foxeer ?

Yup. With the Foxeer the maximum distance I could achieve was around 5km, whereas with the Chaos I've so far done 6.8km and still had a good picture. Good quality antenna's are important though. Ah that sucks about the motor. Any 1850kv race quad motor should be just as good though, it doesnt have to be a cobra :)

True no need for cobra. I just cant believe how long flight you got out of it. I have 2200mah 3s like u and get maybe 10min how is this possible? Though my motor is 2300kv

I put S800 VG's on my fury wing. Before it was having a pitch stabilization wobble, now it's rock solid.

I'm glad you enjoyed it. Do it, it'll be money well spent :p

@@gizfpv question, is there newer stuff that’s more plug abd play now, I have a wing I’m wanting like two miles of range. I have a spectrum receiver and and remote and will need to increase that range, and then I have a rushtank solo 1000 mw with immersion rc antennas and Sky zone goggles. Appreciate any help

@@nathantraucht1981 Kind of, yes. These days Mateksys make 'wing' flight controllers that have pin headers, meaning you don't have to solder everything and instead can use plugs. Typically makes builds quicker and easier to do. If you watch any of my more recent videos you'll see i use those flight controllers and do very little soldering

@@gizfpv ok awesome thank you

Have a look at my more recent videos, I use a lot of different hardware now, although still run inav on all my builds. I think a eagletree vector might be slight overkill for a s800, would be better suited to a larger aircraft that can do more range. But that's just my opinion 😊

Cheers. And yes I know. I've been meaning to change the ground wires on my vtx and cam ever since I did the maiden flight of this wing and found the OSD flicker issue, but I haven't got around to it yet.

The OSD blinks when the throttle is high due to a 'ground loop' issue. It can be fixed by taking the ground wires from the vtx and the camera and soldering them to the FC. I meant to do this but forgot, and seeing as I rarely fly with the throttle high I'm not to worried about it at the moment

I got mine from here: www.hobbyrc.co.uk/airbot-omnibus-f4-v5-flight-controller

Already have, posted it about 2 months ago. Have a look through my more recent videos 😊

The aircraft fly's significantly better if you keep all the weight as close to the centre as possible. You can use the pre-made slots on the wings for your vtx and rx if you want, but the wing will be more difficult to launch and rock around more in flight

I emailed the retailed who sold me the Omnibus, who then emailed Airbot (the manufacturer of the boards), and they say to use the Omnibus F4 pro target. Seems to work :)

In theory yes, but the TBS Crossfire diversity rx requires 1a minimum to power it. The 5v regulator on the PDB is only 2a, and the servos need a unknown amount of amps to power them. So I used a seperate 5v regulator as a precaution. Better to use that than to possibly overload the PDB regulator and loose either rx, servos or both in flight

Appreciate the quick reply and thorough breakdown!!

Sorry for the late reply. When you say the surface doesnt go all the way down do you mean that the elevon doesnt go all the way down?

@@gizfpv yes sir and no worries

@@Djtoken1 Does it go down at all? It's probably fine, you'll lose a bit of downward deflection due to adding some uptilt. But it should still fly fine

The jumper determines what voltage comes out of the RAM pads on the OSD rail. Either be 5v or lipo voltage

@@gizfpv many thanks

The motor I am using seems to be one of the best options (hence why I went for it lol). You could put a even lower kv motor on, but then you'd have to use a even bigger prop for optimal efficency. With my motor I can use a 7" prop, but a lower kv motor would likely need a 8", which wont fit unless you trim the elevons

It's hard to find the amp draw specs on the Cobra. Running 4s with a 7" prop, do you know how many amps your likely to pull at full throttle and cruise ? Ideally i'd like to stick the li-ion pack in but constant draw is 18.5a and 56a max for 60s bursts. Cheers

Pretty much :)

2200 3s

Alt hold mode doesn't work by itself, it has to be tied in with angle mode too. Not sure why, just the way the inav developers have set it up. And yes, I dont put a Gopro in the front so I have to add 80g to make up for it. Then another 50g on top just to balance it perfectly. I probably don't need that extra 50g though as my batterys are quite heavy

Thanks and great video as usual! Im all ready to finally test mine but we keep getting snow! :(

The regulator comes with the S800 v1 kit

Simon Co It's 'Duck' tape

Giz FPV Thanks, for both white and orange ? You bought it on a online shop ?

The parts I used on my sub 250g nano goblin wouldn't be suitable for a z-84. The motor would be way to small. You'd be better off using a 22xx kv race quad motor

Giz FPV ok but i mean rest of the parts?

I used the Ombibusf4pro target. I believe Inav constantly telling you that you need to update firmware everytime you click save and reboot is a bug in the configurator. It happens to me on most my builds. Just ignore it and manually hit connect each time

Giz FPV nice! It isn't saving the changes, that's the annoying part, I am going to try cli commands and see if they stick

72mic laminate from flyingwings.com

Achmad Nofandi Yes. Angle or horizon mode

Yes, I laminate the top and bottom of everything (wings and fuselage). I use one sheet for the top side and a seperate sheet for the underside, and make sure the 2 sheets overlap along the leading edge. The top side sheet covers the elevons, so that somewhat reinforces the hinge. If you look at 1:12 you'll see I've then got the orange tape overlaping the hinge too

Giz FPV I didn't even notice that at the 1:12 Mark haha. Thanks for the reply.

where did you buy it? Thanks

Giz FPV im talking about the laminate film

Connect the aircraft to INAV configurator on your pc, and power the aircraft with a lipo battery. On the GPS tab in INAV have a look at the GPS statistics box on the lower left.....do you see any numbers beside 'Total messages' and 'Errors'? If you do, your GPS is most likely working fine and you're just struggling to get a GPS lock because you're in a low signal area

Giz FPV thanks

Should do. You can power the micro from the fc, you wouldn't need the regulator

Dronex TV a

I almost always fly in Horizon mode and it's fairly smooth and stable. Only time it wobbles is if the speed is too low. Ironically mine doesnt fly so well in passthrough mode

The opposite of my problem. Interesting. Any chance you could email me your PIFF settings and let me try them? Or maybe post them here for others that may be interested? Thanks,

My PIFF settings are all default and haven't been changed at all since flashing Inav. Just use the Z84 preset and you'll have the same PIFF's as me.

Thanks. I may have to give them a whirl. I was using the ones from Matte Box in Motion. His planes fly amazing but my S800 just doesn't like Horizon very well. THis is my second one and neither flew smooth on horizon. Most of my flying is pass through but I like to use Horizon for takeoff and landing.

Quadcopters.co.uk

The SCL and SDA wires are for the compass, which you don't need and shouldn't use on a wing. I'd personally just remove them from your GPS unit and just solder the TX, RX, 5V and GND wires like I have. If you really want to keep the compass however, then put your TX wire on RX6, your RX wire on TX6, and then put your SCL and SDA wires on the pads labled SCL/TX3 and SDA/RX3. Then on Inav be sure to set your GPS to UART6, rather than UART3 as I have

Thank you so much for your reply, you have confirmed what I already thought but couldn't find a definite answer specifically to this board. I have watched many, many inav KZfaq vids regarding this and alot, almost all in fact do wire the SCL/SDA up and then activate it in inav config... are they wrong and just wasting their time then or is it just because their using earlier versions of the board? Thanks

They're just wasting their time and are probably doing it because they're scared to open up the gps module and desolder the SCL/SDA wires lol. Get on the 'Rag the nuts off' page on Facebook and ask in there, you'll find everyone will tell you the same thing. For a wing you don't need a compass :)

Thanks man you're a legend! Your word is good enough for me dude and I'm definitely not scared to do that, it was apart within 5mins of coming through the letter box lol thanks again 👊

Martin Drew That's right. You definitely don't need a compass on a wing since it's always moving forward, allowing the GPS to keep track of heading.

The 5v on the PDB can't supply enough Amps to power the servos and the RX. So a second 5v regulator is needed

@@gizfpv Ah got it I didn't know how much the Crossfire pulled.

Depends what you want to do. If you plan to do long range flights get the V1 as its lighter, if you want to do fast proximity flying get the v2 because its stronger and will survive crashes better. Again which battery you use depends on what sort of flying you're gonna do. For long range flights go for the bigger battery

Giz FPV Thanks for the quick answer, if I understood correctly, the difference between v1 and v2 is in the material, so the design is the same design? I plan longrange, so the place for the battery is important to me.

yehonatan Bellaiche Yup the design is identical on both the v1 and the V2, just a slightly different material. The v1 is still very tough, but lighter, so for long range get the v1

Thank you very much, you helped me alot!

Because that's the target that the instruction leaflet that came with the FC said to use

@@gizfpv ok well i have the same fc. The paper mine came with says omnibusf4sd for betaflight. So idk which one to use for inav.. cause the sd one isnt in there...? Should i use the omnibusf4pro? Also im using rmrc mini gps and tbs crossfire and unify. What uarts should i comnect the gps and crossfire to?

Use the same target i did, it should be fine. Put GPS on uart 3 and crossfire on uart 1.

@@gizfpv ok . Thank you for your help. I have tries xfire on uart6 and no luck. So i tried uart 3 and it works . I also put the gps on uart 1 and it works.. i have smartaudio that i need to hook up too so hopefully uart 6 will work.... donyou know if smartaudio needs to be inverted or uninverted? Also why is the looptime at 500hz why so low? Thanks

So I can get the aircraft to fly back to me automatically at the flick of a switch. You could have RTH on a switch instead, its the same thing

RandomGuy Because the 5v regulator on the PDB is unable to safely supply enough amps to power the servos and Rx. The Rx needs a minimum of 1amp

oh ok, good to know, i wanted to just use supplied PDB for all of this

You don't have too, but I do as GPS works fine

On this flight I believe it was a 1400 3s

7000=7000cm, or in other words, 70 meters

Giz FPV thank you.

I use a 6" and get about 30 mins flight, I've tested a 7" once and got a slightly longer flight time but also a slower speed. So depends how quickly you want to do long range flights I guess lol

Giz FPV ever try the folding props ?

30mins flight with 6" props with what kind of battery ? 3s or 4s ? what capacity ? Thanks :) I have cheap racerstar 2205 2600kv and planning to use 6040 props.

i got racestar 2600kv mount in s800 and 6040 overheating the motor, 4" with 4s battery and 5" with 3s battery get good results

I'm currently using the racerstar br 2205 2600kv with 6045 prop but it's not overheating. but still power is not enough. I've just bought a DYS 2208 1800kv to use it with 7045 props on 3s lipo

patrickcol Haha, Nah it's not actually that much ballast if you think about it. The S800 is specifically designed to carry a Gopro which is around 80g, but if you're not using one you need to substitute that weight. So in reality I've only actually had to add 50g of additional weight on top of what should be there, and I could probably get away with less. I reckon 100g would be fine, and I may reduce my ballast in the near future. Once properly balanced the S800 is a fantastic platform. I've been using my other S800 for long range flying for 6 months now and it fly's really well 😊

yokonunz Nothing wrong with inav 1.7.1, I've been using it for 6 months on my other s800 and works fantastic. That's true about the ESCe calibration, the only reason I showed the Blheli option is to show people how to also change motor direction if they need it.

Giz FPV iNAV 1.7.1 has buggy failsafe. Lost a plane due to it.

yokonunz Used failsafe countless times and not had a problem

Giz FPV same until I had it. If the altitude at the time of Fail-Safe start is lower than the slow down altitude the plane will land instead of coming home for instance.

Lachezar Krastev How did it kill the project with the crossfire? The crossfire is awesome, and also necessary if you want to do long range

Its just too big for this wing. I am going 5 km with Frsky XM+ which is about 2-3 grams.

Lachezar Krastev The main reason for installing the diversity Rx was for its built in battery and beacon function. When doing long range it's nice to know there's some method of tracking on standby incase you have a accident

I did not knew it has a beacon - I will check it.

Henning M Not really. Just figured I'd put in a f4 as it was the same price as the F3. But you don't gain anything useful for using a f4. Only thing that is slightly useful is you get a extra uart, but you don't need it. F3 is just fine 😊