hi i have recently been given a built up lancaster, which appears to have started off as a plan pack as it is all made from veneered foam, the model has an 89 inch wingspan airframe weight seems rather heavy but my dilemma is i have no idea what size engines it takes, i intend to use 2 strokes, can any one give me an idea as to what size i should use? and any other info that you may regard useful thanks nigel.