I've written on this topic before, but I think it might be good to repeat it.
The reason that most 2m gliders "fly like crap" (quoting one CRRC flier), is that they are WAY too heavy for their span. Consider a log-log plot of weight versus span. The following three points lie roughly on a straight line: 1.5m, 10 oz 2.0m, 19 oz 3.4m, 60 oz All three gliders will have good flying characteristics, and are able to work very light lift. A 40 oz 2-meter is "off the chart", and will fly like a lead sled in comparison. Adding wing area via lower aspect ratio helps with the minimum turn radius, but it worsens the max L/D and doesn't help min sink all that much because of the increased induced drag. As was recently pointed out, the main problem with a 19 oz 2-meter is building it strong enough to take a winch sized for 3m+ gliders. Compounding the problem is that a ~20 oz 2-meter ship wants airfoils which are more like those on a DLG rather than on the 3m ships. Such thin airfoils make the structural problem even more severe. If we were all launching on 12v winches with correspondingly lighter lines, the light 2m gliders would likely be competitive with the 3m ships, because the 2m ships would launch higher. Their maneuverability and lower speeds on landing is another advantage. RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format
