Yes, I’m successfully flying on a trike, some caveats….My trike is very lightweight aluminum, 15lbs. I have added a cage extension ring to protect the lines from the prop and added an additional diagonal brace to stiffen the cage during launch, without the cage additions, trike launching can be a bit more risky since the lines are extremely close to the prop. Excessive line pulling on the cage without the braces may pull the cage into the prop as well since the 140cm diameter is very difficult for the average arm length to extend to keep line tension off the cage. Check this post: New SP140 V2.5 test flight - #18 by grimmrlg