Cant wait to get building. Any advice on motors\props or anything else appreciated as this is my first build.
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I always used TMotor and never had an issue - even their newer Velox ‘entry level’ products do not get any bad thing said about them it seems - I cannot really comment on the competition though.
My pick would be:
1750kv for proximity flying
1950kv for a more agressive throttle response
the FC has a pit function so you can easily manage a GPS spool up time without powering your VTX. I recommend the Walksnail GPS - works amazingly well but I believe any M10 GPS should do.
I always add a Buzzer to keep the search and recover parties as short as possible
for props I use HQ and they are really good - you will want to try a few different pitch to see what you like best depending on your config (Motor kv and UAW)
low pitch (less than 3) → less vibration, lower high speed, better throttle resolution, better propwash handling
high pitch (more than 4) → the opposite 
I only ever used Tattu batteries - and a few Bonka - they are amazing premium batteries and there are plenty of cheaper options but I cannot really comment on them
And don’t forget to add a capacitor!
Disclaimer - those are my own opinions and you may do as you please with them 
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Haven’t seen that film in years
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Hi @Cedric thank so much for the info. I will start looking today. I am still in the early stages flying manual so think ill go with the proximity for the first build.
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Hi All
Question number 2 and this is probably a real Noob one.
I going to be using the DJI O3 air unit as i want to use with goggles 3 and dji fp3 remote.
Does the DJI O3 only transmit video or is it used for flight controls also?
Cheers again for the advice
The air unit does both, with the goggles 3 though the controller connects direct to the goggles and they pass through the control to the air unit
So bind your goggles to the air unit and the controller to the goggles
Thats awsome
Think i may have everything other than lipo charger.
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I have the same frame.
Paint the frame before you add more to it?
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Think i have all the parts for the build. If anyone can see anything missing please let me know as this is my first time self building
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looking good
couple of things
You plan to use your DJI radio correct? (If not you may need a receiver if you want to go ELRS)
Regarding the GPS - the trick with them is you need to be able to power them up for 30s-45s before they are ‘ready’ (and you want them ready to get the fail safe/return home and all that).
On the other hand - you cannot power up a VTX for that long without airflow to cool it down as it will overheat.
To achieve that you have a few options:
If your FC has a PIT mode - then this is exactly what this does (t should be mentioned in the specs) - you can set a switch on the radio to power on/off your vtx separately.
Another option is to use a ‘RealPit’ board - a very small board that you wire between your FC and the VTX that provides the same functionality.
There is also something called GPS-Mate that provides a different solution - it is a buzzer (also Vifly brand) that includes a small battery that can just power the GPS. You switch it on and wait 45s before plugging in the main battery.
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Awsome thanks again for the advice
Ive been dry fitting a few bits tonight
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Have looked at the manual for my speedybee f405 60amp v4 and cant find any info on pit mode.
The Gps i purchased is the Walksnail WS-M181 GPS it says the built-in battery ensures hot starts and quick positioning is that ok?
a smoke stopper
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This will help between battery packs - no need to wait the 45s - but you still need a way to have the GPS running without the VTX for the first pack.
Another solution I did not mention but that would require some testing - you may be able to power the GPS through the USB of the FC. Some GPS do not like the 4.5V though - and it means you need some sort of USB power bank with you for that (you need to make sure if you want to go that way to identify on your FC what pads are powered by the USB)
GPS mate is maybe the easier to wire - but takes a bit more space. RealPit board is tiny but may be a bit more challenging to wire/solder in.
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For less than a 10 spot im getting one of these
No brainer
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I believe the gps module is powered through usb also as i can set it up without connecting lipo
I always have my anker usb in my bag
As it charges Neo batterys as quick as i can use them.
And yes i have a neo lol and i use it more than my avata 2
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Just found this in the manual.
4.5v Supported. Designed for receiver and GPS module even when the FC is powered through the USB port. Up to 1A current load.
I assume if i plug it in i should see it in Betaflight