Hey all, I am new to FPV and have been trying to figure out how to setup FPV on an airplane.  I have bought DJI googles V2, 03 air unit, Motionsic gimble and head tracker.  I do not want a flight controller but would rather power my air unit directly into its own dedicated battery.  My question is "How?"  Can anyone help or suggestions?  I would like to plug directly into a 3S.  Thank you ahead for your time and consideration.

You can power an 03 directly from a 3s battery.  Via its 6 pin cable.  However, I have no idea how it will function without the FC.

Thank you! I have spoken with two others that have the DJI air unit and they cut their ribbon cable and left the ground and power wires and soldered a JST onto it. I have purchased and extra cable plus and extended one plus a Speedy bee wing FC. I may just for now use the FC as a power source.

Chris Feige Posted at 2-20 04:14
Thank you! I have spoken with two others that have the DJI air unit and they cut their ribbon cable and left the ground and power wires and soldered a JST onto it. I have purchased and extra cable plus and extended one plus a Speedy bee wing FC. I may just for now use the FC as a power source.

Hey Chris, did that work for you ? I'm kinda trying to do the same. Could you tell me what's the other cable you used ?

djiuser_ZmlbK1gX7L1M Posted at 4-13 15:27
Hey Chris, did that work for you ? I'm kinda trying to do the same. Could you tell me what's the other cable you used ?

Yes, it worked! First I bought a replacement just in case. Since I’m not using a flight controller I cut all the wires not needed except power and ground. I did find a wire guide and confirmed black and red was all I needed. I soldered on a jst to the end and purchased a on/off switch and placed between the battery  and air unit. The 03 can take up to 6c battery but I’m using a 2c. I put on the Motionsic BAG and their head tracker. I had problems with my NX8 and had to send it in before I finished the complete setup but the camera worked and was bound to my googles v2. I also found this on Amazon which dogfightFPV.com is using
https://www.amazon.com/Remote-Controlled-Electronic-Switch-Relay/dp/B08FLVGTXQ?th=1
https://fpvdogfight.com/products/motionsic-b-a-g-badass-gimbal

Hello to all, I'm trying to find out he way of connecting the o3 Unit directly to the batter. My concern with this last post is that I have read that the unit will not give the 100% Power or potential without the TX and Rx cables connected to a FC.

fansec6459ac Posted at 7-26 09:45
Hello to all, I'm trying to find out he way of connecting the o3 Unit directly to the batter. My concern with this last post is that I have read that the unit will not give the 100% Power or potential without the TX and Rx cables connected to a FC.

What I ended up doing is cutting the wires not needed and left the black and red and placed a JST connector on the one end.  I then plugged the JST into a on/off switch then into a 3S battery.  I now have at least 30 flights with no problem.  In my goggles i program full power so that I can record.  Here is my last video of me flying and you can see I am flying pretty far away from the field and have no problems.

https://www.youtube.com/watch?v=e_Et8YVPKkk

Chris Feige Posted at 7-26 10:22
What I ended up doing is cutting the wires not needed and left the black and red and placed a JST connector on the one end.  I then plugged the JST into a on/off switch then into a 3S battery.  I now have at least 30 flights with no problem.  In my goggles i program full power so that I can record.  Here is my last video of me flying and you can see I am flying pretty far away from the field and have no problems.

https://www.youtube.com/watch?v=e_Et8YVPKkk

Very grateful for you answer I will work it the same way then.

Thanks,

Hello Chris , et all ,

Im following your post with great interest , i also am new to FPV flying and am currently looking at buying an air unit 03 , to mount on a gimble  ( not motion sic as too hard to get here in uk ) to mount on my 60" scratch build swordfish ,.

Im running a Wind box hotas TX /RX which has 3 pin outputs so i have been curious to  see how others have powered the unit , but of course the air unit is simply transmiting the signal  ( gimbles are contolled by RXtx on the contoller ) so the air unit being seperatly powered make sense.

What connectors did you use and any pics of your wiring ?

Navybiker Posted at 8-20 05:57
Hello Chris , et all ,

Im following your post with great interest , i also am new to FPV flying and am currently looking at buying an air unit 03 , to mount on a gimble  ( not motion sic as too hard to get here in uk ) to mount on my 60" scratch build swordfish ,.

Hello Navy Biker, I am currently out of town but when I get back I will take a picture. I cut the 3in1 wire leaving only the black and red wires and soldered a JST connector to the end. That then plugs into a on/off switch and then into a 3c battery. Funny you talk about Motionsic as I am currently in California 45 minutes away from Robert’s field he flies at. I linked up with him last weekend and picked his brain and watched him fly. Four guys were flying formation and it was cool to watch. He was testing a new 3 axis gimble that I got to try out. He may be offering that at a later date.

SOunds likel you have a good inside line with them chris , Wahts the 3rd axis ? is it a slide side ways , may help on my swordfish as all the rigging obscures the pilot view a bit ,

Keep me posted , no rush , now you've said i can picture how youve done it ,  if i can rais ethe money ill commit to a unit and think illl run as a stand alone battery to the Power for TX and motor.

im thinking ill remove screen for the FPV camera and make a thin wire outline to maintain the look , but the diagonal braces directly in front are structural on the the upper wing

Navybiker Posted at 8-20 07:03
im thinking ill remove screen for the FPV camera and make a thin wire outline to maintain the look , but the diagonal braces directly in front are structural on the the upper wing

I removed the plastic windows and left the frame to simulate it’s still there. The swordfish will be a cool FPV platform. The 3rd axis is head tilt that he is working on. Adding that to the gimbal does take up more space.

Chris Feige Posted at 8-20 09:37
I removed the plastic windows and left the frame to simulate it’s still there. The swordfish will be a cool FPV platform. The 3rd axis is head tilt that he is working on. Adding that to the gimbal does take up more space.

AH , head tilt , that makes sense yes,  Well if your passing again and find out they want an international Guinee pig for testing , id happily volunteer the swordfish , or even my  sea vixen

Navybiker Posted at 8-21 00:16
AH , head tilt , that makes sense yes,  Well if your passing again and find out they want an international Guinee pig for testing , id happily volunteer the swordfish , or even my  sea vixen

If you have facebook, “FPV air combat” is a site that Robert is the admin. I ask lots of questions there. Is your swordfish gas engine? I have recently been asking questions about making my 1/4 scale Hemple L4 FPV.