Jiro's meticulous craftsmanship is clearly evident in this photo. Note how he has established locations for the structural components, starting with a basic 3-view drawing, without needing to make a complex construction drawing, thus saving considerable time. Most 'gyros require extensive "de-bugging" during flight-testing, so having extra rotors, or at least extra blades, is truly prudent. As model rotorcraft specialist "Jojo" CHAULET put it: "Let us go forth and break blades together!"