Hartzell Engine Tech has received FAA parts manufacturer approval (PMA) for its PowerUP brand Bendix S-20 and S-200 direct ...

And while this magnetic levitation motor does not break the laws of thermodynamics, it can be considered a perpetual motion machine, at least for certain values of perpetuity. The motor that ...

Hartzell Engine Tech has received FAA Parts Manufacturer Approval (PMA) for its PowerUP brand Bendix S-20 and S-200 direct ...

F. R. HAIGH has recently compared the relative advantages of magneto and coil ignition used for generating the explosions which occur in motor-car engines (Students' Quart. J. Inst. Elec.