Me too! It was on a maiden flight on my Sky Raider Mach 2 back a few years. I understood the issues of flutter but didn't hear it happening at the time, I just wanted to go fast too and how cool I thought to do it on a $99 plane ($69 at the time) with some tweaking.
The top side of my entire wing flew off at full throttle in a downward angle but I wouldn't call it a dive , it was moving good with an AX 46 on it using a GMS muffler. The wing was under too much strain exceeding the speed for which the wing was intended to be flown. It's not even fully symmetrical? I did all the anti-flutter chores, but the wing failed. In my ignorance I mailed the pieces of the plane back to World Models asking for a replacement thinking it was poorly glued.

They replaced the plane no questions asked but a note saying they couldn't determine the cause of failure was included.

I later realized it was more likely I pushed the plane too hard. It really goes to show you how nice World Models was to replace the plane, probably knowing all along I was wrong, but wanted me to be a happy customer. I buy a lot from them ever since, without incident, cutting back on my abuse of overpowering the wrong planes. Unless you're competing with Sky Raiders as a requirement for the event, get yourself a "fast" plane to go fast. I learned by a few crashes, you can't defy physics with just a bigger engine and a higher steep dive.

You want to go fast? Get one of these!

http://www.rcplanet.com/ProductDetai...=22233_daa71c1