This model was built by my friend here in Norway, it has 2x30 kg turbines and weighs in at approx 140 kg or
about 300 lb. The main wheels are gocart wheels and it flies like the real thing! He is now in the process of
fitting scale details and painting it, it is an amazing feat!!
https://www.youtube.com/watch?v=cp55UvTfe34&feature=youtu.be
Here you see him taxiing in an unusual configuration!!!
https://www.youtube.com/watch?v=5xNIug2mCWs