United States, KS, Overland Park
Joined Dec 2014
Scale bomb: 1, MM Magpie: 0
HobbyKing sells some nice Quanum scale bombs with a release mechanism that plugs into the gear channel on your receiver. http://www.hobbyking.com/hobbyking/s...=quanum%20bomb
I'd had one sitting around awhile unused, so I decided to mount it to my Mountain Models Magpie. I figured it would have plenty of lift since it handled a 200g+ camera without any problems.
One problem: DRAG. These things produce loads of it. I got the plane trimmed out with the release mechanism mounted without the bomb, which weighs almost nothing, so I thought it would do fine with the bomb mounted to it. After checking the CG I thought it was ready to go.
I gave it full power down at my local school baseball field, but right after takeoff I knew something was wrong. The Magpie could barely climb and was accelerating way too slow. By the time I had enough altitude to start turning, I was already over the school on the other side of the field. I rolled into a right turn to bring it back over the field, but the plane snapped very quickly into a knife edge and lost a lot of altitude. It hit the roof of the school very hard before I could get the wings level.
Asking a school janitor to retrieve a crashed airplane from the roof wasn't my proudest moment as a pilot When I got it back, the wing was destroyed and the fuselage was in pretty bad shape too.
The Magpie desperately needs ailerons, and that was probably one of the reasons it crashed with the bomb on board. As for the bomb, I wouldn't use it on a three-channel airplane or one that you're not sure has enough power. I guess the moral of the story is that you really need to be careful when flying new equipment. Choose a large field and be prepared to make an emergency landing.
Fly safe and good luck,
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