Outlining the scope before you design

Before we actually start putting pencil to paper (or rather mouse to CAD, in this case), we need to outline some basic needs and layout of the duck. Let's start with the problems and solutions analysis that we did on the design.

The following table lists the problems and solutions we worked up; although the original table was handwritten, this one is far more legible:

Problems we'll encounter	Solutions
Water leaking into seams of the model	CA glue seams, and fill with silicone sealant.
Water leaking into the location where the propeller shaft meets up with the body	Stationary sleeve for shaft filled with grease and sealed (on the outside) with silicone.
Water leak on access lid	Silicone sealant o-ring.
In event of water leak, waterproofing Pixhawk	Silicone moulded Pixhawk case? (No).
Pixhawk heat from silicone moulded case?	Can't seal it. Must make body as water-tight as possible. Test water-tightness in every stage leading up to Pixhawk integration.
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