The last Depron Delta project version 5 (linked above) was an amazing simple flyer that had super crazy roll rates.
I wanted to see how much further I can push the simplicity of the build while actually improving the design. In version 6 as you'll see below utilised carbon fibre more to create a frame work just 6mm thick using 3mm depron.
The design directly follows version 5 size specification of 50cm span by 36cm long. So Based on these dimensions I cut out the 6/4mm carbon fibre rod to the outline shape of the delta. I then used the 4mm glass fibre rod to push inside the carbon rod to hold the frame together basically.
I used the 3mm depron foam cut out of the shape to pin the frame together while I used regular CA glue on the glass fibre rod in the corners. Just enough to hold the shape together while it's worked on.
This is more likely the most difficult part, ensuring the motor mount has a 1.5-2 degree downward angle, you can also add a bit of right twist (1-2 degrees).
I used 2mm plywood board accross the entire center length which the engine mount uses for additional support and gives a solid place for servos and lipo to rest on.
On the bottom I used the same 2mm plywood to create a brace around the engine mount area and on the tips to make the frame rigid. I just used regular CA glue to do this.
The magic of duck tape strikes again, use the tape all around the edges laying half over one side then wrap it under tight. Does this all around the frame. It will turn the frame into a solid stiff structure. Note I also opted to cover the engine mount, this was more for aesthetics than actually required.
I'm using 950 and 1000mAh 3S lipo packs for the model, with the lipo as far forward as it can go. COG is at 26-30% back from nose tip which will vary upon your motor length.
Carbon depron delta version 6. Thinner, lighter and faster
