Recent content by jloram

In an ideal system, any amount of torque will accellerate any amount of weight. The amount of accelleration will depend on the amount of torque and the amount of weight. In a real world system you'll have to know the static friction (sometimes called stick-friction) which will determine the...

Is this an elastic balloon or a bag? If elastic, you'll have to put the helium in under pressure, hence extra helium and less lift.

You know the power (200kw) and you know the rpm (1400). Open any first year physics book and look up the relationship between hp-rpm-torque.

Assume direct drive; diameter of the wheel will tell you the torque you need. If not direct drive divide wheel torque by gear ratio. HP is tricker: on the level you'll have to determine (assume?) the drag (rolling friction + aerodynamic). For uphill add hp required to lift weight at vertical...