This is a model that was built from a very basic shell purchased on Ebay about 12 months ago. Some of the build work is shown in a build Blog.
The propellor could be smaller 27mm or even 25mm and the run time might then Improve. After the first run it proved that motor was much too powerful so will try a much reduced rated motor say 1000KVA. (Motor: 3600KVA Fan Cooled Outrunner) (ESC: EMax Brushless) (7/10)