I fly the whole pattern with my formosa but it is not stock. Power is a park 400 4200kv 6.6gearbox and 10x7 prop. Will go straight vertical for as long as i want. Started doing 3d with it a couple of weeks ago and its not really meant for 3d this is a pattern ship but it can be done. But my advice is if you do go brushless so if you run into trouble you can get out of it.