The 36" rig weighs in at 2.10kg (4.60lb), nearer the mark for our choice of motors. The plastic deforms a little around the bolts but a bit of flex and deformation comes with the aeronautical territory. The 737s I flew often had ripples in the skin around the rear baggage hold (which is what they did) and the fastest jet in the shape of the Blackbird used to leak fuel at the seams.
The material is less forgiving than alloy when it comes to metal-bashing in the form of stripping and re-building prototypes, but then that won't be an issue in the fabrication of a beta-product. Meantimes prior to it's removal to the paint-shop (aka garage) we'll look at fixing the motor-mounts for those mighty 600w units.
