Originally Posted by
birdofprey
However, to get the torque to the brakes, we are talking some serious voltage. How does 270V DC sound to a mechanic standing in a puddle next to a wet landing gear with highly conductive brake dust spread over the truck? Surely this is a major health and safety risk overlooked by Boeing?? Equally, to get the power to the electric motors you will need some serious wiring - resolvers, power, parking systems in each motor all need to be individually wired which must be a massive weight disadvantage over a single hydraulic pipe.
Anyway, does anyone else see an advantage to these machines? Any ground engineers concerned about being zapped???!!
Interesting subject, those brakes. Perhaps the weight advantage is a result of the system savings taken as a whole. I can see advantages in weight, reliability, and maintenance costs.
Plenty of high voltage at the wheels already:
Brake Fans, Anti-Skid actutators, gear truck pivots, APU control boxes and landing lights. All very safe, rain or shine.
