A moment to congratulate ourselves, with the safety grilles in place. These are around 19" wide apiece and broadly tailored to fit, although the 1" margins allow for significant slack. I have pop-riveted the grilles in place at sixteen points that correspond with those used to fit the angle-alloy strips.
The airframe is rather harder to carry now in view of the fact you cannot step inside of its perimeter, but there'll be a fix for that in due course. I recommend fastening all four grilles in place however as they add significantly to the overall structural rigidity of what is after all, a beta-product.
These surfaces will adequately support hand-tools and so on but are 'no-step' zones as regards boarding the aircraft. A top tip is a 19" square outline of half-inch plywood to form a temporary 'air-bridge' for boarding passengers: NO STEP decals and a white silk scarf are a must for the pioneering aviator at this stage of the game.
This the last 5mm-perforation sheet before the supplier needs to re-stock, at a price uplift of over 40%. The product is from Germany (a reason for its metric size), though the ore from which it is made comes from... Russia.
