For clutch equipped machines | Rope Trick II another version
As we’ve covered, props eat body parts on a regular basis. Clutched machines are no better since, although the prop may not spin at idle, it sure spins up fast at throttle-up. Further, the fact that a unit is clutch equipped may lure pilots into a more casual approach to their running machine—a misplaced trust.
Francesco DeSantis came up with this safety improvement for clutched machines, the Prop-Stopper rope—an easy-to-build device that prevents the prop from spinning while you start the machine. Even at full power it would stop the prop. Yes, that would obviously be hard on the clutch, but a clutch is cheaper to replace than a hand. And much less messy.
This piece of rope with a short tube attaches to the prop in such a way that it can’t spin, even if the throttle were at full. Then the pilot gets buckled in and removes the rope while seated, nearly eliminating the possibility of an accidental prop strike during startup.