GWS Formosa is a nice plane ... you can fly her on 3S lipoly but the stock motor may not take it, my 1st Formosa motor burnt, however the 2nd did not. On the stock motor she can even do rolling circles ... I learnt my 1st rolling circle on the Formosa. I later used a Himax 2025 on her turning an 8x6, she was fabulous!!!