“Keep it simple” sounds like such good advice, but what exactly is the “it”; what parts of a project should you try to keep simple? You can’t always make everything simple, can you? Are all kinds of “simplicity” equally valuable, or are there aspects of a design where simplicity has multiplier effects on the rest of the project?
I ran into two seemingly different, but surprisingly similar, design problems in the last couple weeks, and I realized that focusing on keeping one aspect of the project simple had a multiplier effect on the rest — simplifying the right part of the problem made everything drastically easier.
EA Axon Great plane, but heavy!
The first example was a scratch-built airplane design. I’d made a few planes over the summer, focusing on plans on the Interwebs that emphasize simplicity of the actual build. Consequently, the planes were a bit heavy, maybe not entirely aerodynamic, and probably underpowered. And this is because the effort you expend building the plane doesn’t fundamentally have anything to do with flight. Keeping the build simple doesn’t necessarily get you a good plane.
Weight, on the other hand, is central. Wings produce lift, whether measured in grams or ounces, and anything heavier just isn’t gonna fly. But reducing weight has a multiplier effect. Less weight means smaller and lighter motors and batteries. Structures don’t need to be as stiff if they’re not subject to heavier bending forces. And, important to the noob pilot, planes with less weight per wing area fly slower, giving me (ahem, the noob pilot) more reaction time when something goes sideways. Trying to simplify the design by trimming weight has knock-on effects ..
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