Aero Floss 2.1: RX-001 C Spec

By falconfpv on Dec 05, 2018

17  1,272  9

This build is a Floss 2.1 with a custom aero canopy that I've designed. The canopy serves as a drag reduction aero device and impact structure. It is printed in PLA with 12% infill and 3 outer shells for good strength and tested to withstand at least 23KG without breaking. It currently reaches a max ground speed of 226KPH (140MPH), with a two-way peak average of 209KPH (130MPH). Dry weight: 320g AUW: 530g

A key design choice of this build is to run a top mount battery, as bottom mounts tend to kill the battery with hard landings. It coincidentally also leaves the CG of the quad directly above the front motors at full send AOA (80 degrees). The canopy design iterations are tested in CFD (virtual windtunnel) using SimScale. Measurements done by BN-180 GPS linked to Betaflight OSD.

The speed runs are about 30-60m off the ground to avoid random dogwalkers and low flying DJIs.

I'm not using the ARX frames as it's more interesting to design the aero bodywork myself! Feel free to contribute ideas that can make this go faster!

You can download my canopy design here: https://www.thingiverse.com/thing:3261669

Photos

Discussion

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Tyger   Mar 18, 2019  

Great build, super speeds. I'm looking to use similar components in my first Marmotte build did you have any issues at all, and more specifically the FC to ECS's? Also did you add a capacitor anywhere on the ESC's?

falconfpv   Mar 18, 2019 
1

Thanks. The F4S FC (specifically V1.5) has been solid so far. I only added a 470uF 35V on one of the ESC power pads on the FC for 5S. The Tekko32 ESC was great until it died though. Probably because of all those speeds runs. Video was very clean.

Jimskane   Dec 08, 2018  
1

This is very clever. I'd love to here more. this group is very interested in things like this: https://m.facebook.com/groups/1551618814932503?ref=bookmarks please join us.

falconfpv   Dec 08, 2018 

Thanks!

IvanNik   Dec 06, 2018  
1

Awesome !! it's so minimal design !

Jodie Froster   Dec 05, 2018  
1

Too big to be a forehead. That's a 5head.

falconfpv   Dec 05, 2018 

Haha good one!

QuadStar Drones   Dec 05, 2018  

I REALLY like this build. "I'm not using the ARX frames as it's more interesting to design the aero bodywork myself!" I agree, much more rewarding! Doing your own thing is the best way to come up with new and exciting ideas - just like you did here :)

falconfpv   Dec 05, 2018 
1

Thanks! It's really fun indeed to come up with this design. It's an honour for you to like this! I've been following your project and congrats on your achievements!

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