Acrobee is my first racing/acro quadcopter with 4 motors. It was designed for aerobatic and FPV racing flight. First was made 2014 and there were 2 versions in total developed. Version 2 was very popular all to 2017, when it was replaced with much faster and more agile Stinger drone – new generation racing platform.
Overall width: 233mm
Overall length: 212mm
Motor X spacing: 176mm
Flying weight: ~550gr
More about AcroBee (Slovenia): http://forum.modelarji.com/viewtopic.php?f=135&t=89034