Updated version with slightly strengthened arms, and enables larger zipties for grass standoffs and rollbar. 

An acro FPV racer made to flex on impact and for the newer pilots has moutning points for standoffs, zipties, and impact foam depending on if you need to dampen impacts or just keep the props barely above grassline.

This version is a 1.5mm CF which will be a bit fragile so avoid trees and concrete.  This is more of an experimental version to see if sometimes bendier and lighter really do survive better. It should flex distributing shock and deformation along the entire body.  Its primarily designed to take forward impacts on an arm. The stubs of CF are meant to become a bit frayed, or to be mounting points for zipties, hot glue, expanding foam, or similar sacrificial high density impact absorbers.

To keep weight down I sandwitch the FC and reciever in foam but use a zip tie to hold the unit down in the center just clear of the props.

After building it up it flies great. Top speed around 35mph for the following config.

AUW 159grams,   Sans battery  118grams,

• DYS 1306 motors
• 6A 2gram ESC's
• Nano-tech 450mah battery
• clover leaf 5.8 antenna with an MX-VTX-B 200mW
• 3545 props
• Diatone V1.3 PDB with 5V step down regulator and custom LC filter.
• A tinny 1g 600TVL camera with modified M12 mount for a 1.8mm Wide angle lens
• a stripped racing FC and a stripped 6g reciever
• 13 2mm zip ties, trimmed down
• A bit of spongy low and medium density foam

This is the lighter frame and will require careful vibration dampening of the FC or filter functions to dampen frame flex vibrations.  Go to the 2mm thick CF frame if you want to alleviate this problem for an increase of 3.3 grams and a lot more impact resistance.  That said, I have yet to break this hitting trees and fences.