John

Very sorry for your loss of what looked like a very nice model.

This does indeed raise concerns because as these models get bigger and bigger they need to build them in a different way to their smaller models. Strength and size are not proportional but exponential and what will do for a 120 and belowturbine size model will not do for a 170 and above.

Looseing a model is a great sadness but should one of these potentially flawed models hit a building or worse people as it fails in the air this would be tragic and of course also worrying for the hobby.

Bod