ADU 0187: What quadcopter frame(s) would you suggest that umbrella fold for large, coaxial setups, but also have solid locking mechanisms for the booms?

Summary: Today's question comes to us from Eric in Las Vegas. He's asking us what quadcopter frame(s) would you suggest that umbrella fold for large, coaxial setups, but also have solid locking mechanisms for the booms? We'd love to help you out, Eric, and really appreciate the question! Here's our answer for you and our loyal listeners. Fly safe! Get your questions answered: http://askdroneu.com/. Tell us what you think of the our show. We listen and tweak often. Please leave a review on iTunes: https://itunes.apple.com/us/podcast/ask-drone-u/id967352832 Follow us: Site - http://thedroneu.com/ Facebook - https://www.facebook.com/droneu Instagram - https://instagram.com/thedroneu/ Twitter - https://twitter.com/thedroneu YouTube - https://www.youtube.com/channel/UCgJ5K7wWoFlnYC3e8eIxYrA