Thanks Larry . I am putting a ASP 160 twin in mine , my buddy has a OS 180 in his . The 180 really yanks it around the sky but it is pretty thirsty . His flights are only 8 mins tops . What do you have in yours ? I am thinking a OS120 or a DLE 20 might be good matches . I haven't run this ASP twin yet but I have run the Gemini Twin in a 1/4 Cub .