Razorback,

There are many times more r/c'ers flying the DP330L and having nothing but success than there are who are being successful at having nothing........ I'm not throwing stones; just putting the situation in perspective. There seems to be some validity to some of the kits coming with very flexible ailerons that are subject to flexing or twisting laterally.

There is some anecdotal evidence of this phenomenon (flutter) happening at very low airspeeds. I cannot personally vouch for these, and one man's "slow" is not necessarily another's. Most of the methods mentioned in this string are symptomatic in their approach. They all dampen what has already taken place, but do nothing to stop it's onset. To illustrate this, go to any site dealing with aerodynamics and do some research.

There are literally hundreds of good solid suggestions re: R/C advice on R/C Universe, and some well-intentioned advice also. Don't let it alarm you unnecessarily. There are conditions which may lead to flutter. Some are: Exceeding V-sub-ne (over-speed, that's why wings come off full-scale when they go faster than design maximum); Loose linkages; unsealed gaps between fixed and movable surfaces; Movable control surfaces having "mechanical advantage" over the servos driving them (Important!!), and what I consider to be the most important: unbalanced ailerons. (there seems to be some misunderstanding on this thread of what "balanced" control surfaces consist of). Most, if not all, full-scale aircraft utilize balanced ailerons, but it still gets the best of 'em! The larger our "miniature aircraft" the more like their big brothers they behave. That F-117 Stealth fighter that crashed at an air show back east several years ago was a victim of flutter. If you look at the tape of the crash and pay close attention to the left aileron/wingtip, you'll see a prime example of flutter! I believe they blamed that one on maintenance. My main point is this: do some research and don't take anything for gospel without it. (Including all of this :-) Satisfy your own curiosity. I have gotten some very good information and advice on RCU, and it's an invaluable source of information.

Just be aware of the difference between anecdotal and empirical evidence. Most of all: Have Fun. The DP330L is a great airplane. The DPM 60" Ultimate is.......well, read the review in RCM.