Aero Floss 2.1: RX-001 C Spec

By falconfpv on Dec 05, 2018

16  478  7

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

Part List

Frame

HyperLite Floss "V2.1" Race Frame 5mm Arms 5" (28 builds)
Pirofliprc.com
$44.99

Flight Controller

CL Racing F4S Flight Controller PDB OSD AIO (99 builds)
Getfpv.com
$34.99

ESCs

Holybro Tekko32 35A 4-in-1 BLHeli32 3-6s ESC (27 builds)
Getfpv.com
$55.99

Motors

4 x Hyperlite 2207.5-2722KV TEAM EDITION
Pirofliprc.com
$87.96

Propellers

5.1x5.0E-B4 | APC Propellers (4 builds)
Apcprop.com
$4.96

FPV Camera

1.8mm M8 Lens  version. Click Here (148 builds)
Banggood.com
$17.99

FPV Transmitter

TBS UNIFY PRO 5G8 HV (SMA) (473 builds)
Team-blacksheep.com
$49.95

Antenna

Lumenier AXII U.FL 5.8GHz Antenna (LHCP) (9 builds)
Getfpv.com
$17.99

Receiver

TBS CROSSFIRE micro receiver V2 (246 builds)
Team-blacksheep.com
$34.95

Batteries

DINOGY GRAPHENE 2.0 1300mAh 5S 80C LIPO BATTERY (4 builds)
Team-blacksheep.com
$25.00
Show stores (5)

Discussion

Sign in to comment

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!

Guides & Reviews

49 5,141  43
Jan 15, 2019

The iFlight XL5 V3 is a fantastic freestyle frame for the price. It features chamfered edges on some very nice quality carbon fiber. My goal for this build was to use high quality components at a relatively low price. Not only that, but I managed to reduce the number of solder points to the bare minimum. I've never built such a plug-in-play quad! The flight controller has an integrated VTX and doesn't..

Read more
14 2,882 
Nov 16, 2018

Update! Happymodel has released a new V2 Frame which uses a more durable plastic. The Happymodel Mobula7 is one of those rare treats to hit the micro scene. Countless models hit the market every month, but this one just happens to check all the boxes. It's a 2S brushless micro with a 75mm motor stance. It's slightly larger than the more traditional 65mm brushed micros, but it's still quite small...

Read more