Atlas 4 Micro Mid Range

By fabust on Mar 14, 2024

3  0  2

This is my first DJI build and I wanted it to look as clean as possible.
When I saw the new Flyfishrc and Flywoo parts, I knew I had to design a build around it. The white GOKU stack looks super nice and the 1804 motors have a lot of power.
This build was never intended to fit in the sub250g category. But weighing 198g dry I get very close to 250g on a GNB 550mAh with still 4-5 min flight time.
Where this quad really shines is on 4s 800-1000 mAh. Very nimble, powerful and equipped with diversity ELRS and a big GPS ready to get further out.
On a 3s LiIon it still flies decent and I get past the 10 minute mark. 20g less would surely help a lot, but I don't know what to sacrifice at this point. Maybe biblade props will do the trick.

Photos

Part List

Frame

Atlas 4 LR FPV Frame
Flyfish-rc.com
$36.90

Flight Controller

GOKU F722 PRO Mini V2 40A BLS 20X20 Stack
Flywoo.net
$69.99

Motors

4 x Flash 1804 2450KV 3500KV Freestyle Motor (2 builds)
Flyfish-rc.com
$63.60

Propellers

HQProp T4X2X3 Grey (2CW+2CCW)-Poly Carbonate
Flyfish-rc.com
$2.99

FPV Camera

DJI O3 Air Unit (70 builds)
Pyrodrone.com
$228.99

Receiver

SuperD ELRS Diversity Receiver (13 builds)
Betafpv.com
$19.99

Batteries

GNB 930mAh 4S 120C (XT30)
Rotorama.de
See Site

Batteries

Tattu 850mAh 4S 75C (XT30)
Rotorama.de
See Site

Batteries

GNB Liion 2500mAh 3S1P 12C
Rotorama.de
See Site

Goggles

DJI Goggles Integra
Store.dji.com
See Site

Hardware

GOKU GM10 Mini V3 GPS w/compass (2 builds)
Flywoo.net
$19.99
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Discussion

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fabust   29 days ago  

Thanks!
I know about the 1404's. I have the Flyfishrc 1404 on my 3 inch analog quad. They are great motors and 5.3g lighter than the 1804. So about 25g of weight saving would be no problem at all for anyone who is looking forward to build around the Atlas4 frame.
I just like the additional oomph from the 1804's and was hoping for flight times around 12-15 minutes. I will try bi-blades this week. If they add 2 more minutes I am quite happy.

Jodie Froster   29 days ago  

Nice build!
If you are only using it for long range, surely 1404's would spin 4" bi-blades. That would save you 16-17grams on the motors, add in the lighter bi-blades and you're close to 20gr.

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