On 7/24/2010 12:28 AM, John Doe wrote:
I have a Bosch 36 V lithium-ion hammer drill motor with batteries
and charger. What sort of propeller would be appropriate to stick
onto the shaft of that? Would a powered paraglider propeller be
too big? I just want to get a rough idea of how much air that
motor can push. Any experienced/educated guesses would be
appreciated.

Thanks.

You have spelled out the motor, but there are two pieces of information
that would be really useful.
1) Power - expressed as input watts or HP
2) Shaft speed.

3) If you really wanted to spoil us for information, a graph showing
shaft horse power versus shaft speed would do the job.

Then, getting realistic: propeller pitch is conditioned on the useful
range of air speeds expected: more airspeed = more pitch angle.

Brian W