Ah gotcha you are referring to the F745 20x20. What's odd is that the description states it has a 9v but the wiring diagram shows no 9v. Flywoo needs to fix that.

Have you considered the TMotor F7 20x20 stack? That's got a beefy 10v pad. I really liked how it performed when I used it. But again, these prices ... ugh.

(13-Feb-2022, 07:57 PM)the.ronin Wrote: Ah gotcha you are referring to the F745 20x20.  What's odd is that the description states it has a 9v but the wiring diagram shows no 9v.  Flywoo needs to fix that.

Have you considered the TMotor F7 20x20 stack?  That's got a beefy 10v pad.  I really liked how it performed when I used it.  But again, these prices ... ugh.

For a minute that T-Motor Mini F7 FC stack looked promising, but then I noticed it has no barometer. Damn. I guess there is always going to be some kind of compromise with the small 20x20 FC's.

I looked a bit closer at the Goku Versatile F745 Pro Mini FC and it does actually have a 9V output pad on the FC. It was only when I zoomed into the wiring diagram (HERE) that I could then read the text against that pad properly. On the Caddx Vista end it just states VCC so I previously assumed that pad on the FC was VBAT voltage. So that Goku is still an option if I think I can compromise and live with just 8Mb of blackbox logging.

I'm definitely going to start compiling a spreadsheet of potential FC / stack candidates.

(13-Feb-2022, 12:54 PM)SnowLeopardFPV Wrote: My main reason for going with 4S on this Micro Apex 3" quad is so I can share LiPos across quads rather than have to get LiPos specifically for this one new quad which I would have to do if I was to build it as a 6S quad. 4S on a 3" quad is usually more than sufficient and I will be happy if I can get ~5 minutes of hard flying time out of it which is what I am getting from my 5" quads. I guess I will just have to wait to find out if I will end up being disappointed or not. Also don't forget that with higher KV motors you can always use motor scaling in order to use them with 6S LiPos if you really want to (as long as your other hardware is all 6S capable). Not that I will likely do that.

The ImpulseRC Micro Apex frame weights 58g. The Armattan Japalura frame weighs 56g. So both are heavy 3" frames with very similar weights. By contrast the Armattan Tadpole frame weighs just 17.5g so your motor choice for that frame would probably be very different.

Below is a link to all of the 14xx and 15xx motors I deemed to be suitable for the (heavy) Micro Apex 3" frame, with the highlighted ones being my shortlisted favourites...

https://docs.google.com/spreadsheets/d/1...lhOj-EB7OU

I'm still yet to decide on what stack to put in the Micro Apex but I was originally intending to put a Caddx Vista / Nebula Pro in it. I might think about possibly putting HDZero in it instead but I'm not decided on that either yet.

I will have to buy all new batteries as mine will be to large for a 3”. I don’t expect little 6s’s to cost an arm and a leg but haven’t looked yet…I might be surprised.  I’ll take a look at the Micro apex too.I like the look of the japalura but it looks a little tighter than the tadpole. It just looks better than the tadpole IMO.

(13-Feb-2022, 12:54 PM)SnowLeopardFPV Wrote: My main reason for going with 4S on this Micro Apex 3" quad is so I can share LiPos across quads rather than have to get LiPos specifically for this one new quad which I would have to do if I was to build it as a 6S quad. 4S on a 3" quad is usually more than sufficient and I will be happy if I can get ~5 minutes of hard flying time out of it which is what I am getting from my 5" quads. I guess I will just have to wait to find out if I will end up being disappointed or not. Also don't forget that with higher KV motors you can always use motor scaling in order to use them with 6S LiPos if you really want to (as long as your other hardware is all 6S capable). Not that I will likely do that.

The ImpulseRC Micro Apex frame weights 58g. The Armattan Japalura frame weighs 56g. So both are heavy 3" frames with very similar weights. By contrast the Armattan Tadpole frame weighs just 17.5g so your motor choice for that frame would probably be very different.

Below is a link to all of the 14xx and 15xx motors I deemed to be suitable for the (heavy) Micro Apex 3" frame, with the highlighted ones being my shortlisted favourites...

https://docs.google.com/spreadsheets/d/1...lhOj-EB7OU

I'm still yet to decide on what stack to put in the Micro Apex but I was originally intending to put a Caddx Vista / Nebula Pro in it. I might think about possibly putting HDZero in it instead but I'm not decided on that either yet.

That is a cool way to look at motor data. Did it come that way or is that something you put together?

(14-Feb-2022, 02:34 AM)Kevin2112 Wrote: That is a cool way to look at motor data. Did it come that way or is that something you put together?

Nope. I hunted down all the motor data from various spec sheets and then collated it all myself into that spreadsheet  I'm now going to do the same for suitable stacks too. I might just create another tab in that same spreadsheet and add all the stack into that with their various options and features.

(14-Feb-2022, 02:49 AM)SnowLeopardFPV Wrote: Nope. I hunted down all the motor data from various spec sheets and then collated it all myself into that spreadsheet  I'm now going to do the same for suitable stacks too. I might just create another tab in that same spreadsheet and add all the stack into that with their various options and features.

I’d be interested in seeing that spreadsheet