3 ms·

depends on the capacity (and hence torque) of the engine, a sensible person would always wear a thick glove! besides, kids back then were pretty impervious to

depends on the capacity (and hence torque) of the engine, a sensible person would always wear a thick glove! besides, kids back then were pretty impervious to injury.

jacquesm 4y ago
Right... well the number of times I've seen the ambulance ride out to that field tells a slightly different story. The problem is that every time it goes right your risk tolerance goes up and after a while people stop seeing the risk entirely. Same story in machine shops. I think the real issue is that these are not toys, some of those motors pack an awful lot of punch, much more than the size of the motor would convey to a casual observer. Likewise for LiPo packs, those things are extremely impressive from an energy content perspective and yet, the number of idiotic things I've seen people do with them just baffles me. After a long history of making, building and using all kinds of dangerous stuff I still have all my fingers. But I did manage to break my leg on an experimental bike so even the cautious can get caught out. Oh, I just noted the helpful little table on that article I linked above: Ultra Micro- Micro= Break the skin/ light bleeding, can cause serious eye damage 20"- 25" wingspan= Deep cut requiring surface stitches 25"- 35" wingspan= Deep cut through muscle, damage to tendons requiring multiple layers of stitches and possibly even surgery. 35"- 50" wingspan= Can cut to the bone, cut tendons, surgery required to fix damage. 50"- 70" Wingspan= Damage to bone, broken fingers, cut tendons in arms hands and legs. 70"- Large Scale= Lost fingers, serious deep tissue and tendon damage, cut arteries potential death Giant scale= Dismemberment, can take off fingers even arms or legs, can likely kill especially if it hit you in the head.
watwut 4y ago
Kids back then were not "impervious to injury". Accidents and injuries did happened in the past. So did fires cause by kids.

depends on the capacity (and hence torque) of the engine, a sensible person would always wear a thick glove! besides, kids back then were pretty impervious to injury.

jacquesm 4y ago

Right... well the number of times I've seen the ambulance ride out to that field tells a slightly different story. The problem is that every time it goes right your risk tolerance goes up and after a while people stop seeing the risk entirely. Same story in machine shops. I think the real issue is that these are not toys, some of those motors pack an awful lot of punch, much more than the size of the motor would convey to a casual observer. Likewise for LiPo packs, those things are extremely impressive from an energy content perspective and yet, the number of idiotic things I've seen people do with them just baffles me. After a long history of making, building and using all kinds of dangerous stuff I still have all my fingers. But I did manage to break my leg on an experimental bike so even the cautious can get caught out. Oh, I just noted the helpful little table on that article I linked above: Ultra Micro- Micro= Break the skin/ light bleeding, can cause serious eye damage 20"- 25" wingspan= Deep cut requiring surface stitches 25"- 35" wingspan= Deep cut through muscle, damage to tendons requiring multiple layers of stitches and possibly even surgery. 35"- 50" wingspan= Can cut to the bone, cut tendons, surgery required to fix damage. 50"- 70" Wingspan= Damage to bone, broken fingers, cut tendons in arms hands and legs. 70"- Large Scale= Lost fingers, serious deep tissue and tendon damage, cut arteries potential death Giant scale= Dismemberment, can take off fingers even arms or legs, can likely kill especially if it hit you in the head.

watwut 4y ago

Kids back then were not "impervious to injury". Accidents and injuries did happened in the past. So did fires cause by kids.