Using Photoshop, it is extremely easy, just a couple of clicks, to either enlarge or reduce the printed sheet parts to the correct size. No doubt any modern Guillow scale kit is too heavy for good flying performance with rubber power, however, if you carefully sand all balsa sheets to 1mm and reduce by half the wing ribs and other lightening issues reasonable flights can be. I wonder if there was a problem with the printer scaling at your end? As best I can tell, the printwood is correctly scaled - or at least very close to correct. Regarding the Ionosphere plan, where is c of g? I am thinking of buildingone for electric power. Probably not exactly there, but close enough to start trimming. Peter, as a general rule, locate the Mean Aerodynamic Chord (MAC) and the C/G will be near the 1/3 point from the leading edge. Hello, perhaps by enlarging the moving surface of the rudder a little, just as it is I had no problems giving it more angle of movement.
This is quite similar, study the plan: Pit : I have been thinking on how the performance would be with a one pound wieght. I’ve been scrolling through the plans to find a good high wing, relatively large surface area plane with a similar wingspan as the not quite. The book 'For What It's Worth' edited by Don Dewey can be downloaded at Martin Huebner : Thank you, Martin, and I see the Gruppo Falchi have quite a good library of dowloadable books at Miguel :
