Guru
Joined: 26/07/2007
Location: AustraliaPosts: 1686
| Posted: 11:21am 24 Jul 2008 |
Obviously having too much fun.
Looks like the reverse problem of the windmill, now you have to match the blades to the power plant.
If less pitch gave higher pull, then it sounds like lack of torque at the rpm you had been running. Seems like the battery was under done.
If you have to resort to smaller prop at higher rpm, then one suspects just not enough grunt (motor or battery impedance)
What was the terminal voltage at full prop power? Maybe the batteries are the limiting factor with their current capacity.
May need higher battery voltages to get around the current deficiency of the battery design.
...........oztules
Village idiot...or... just another hack out of his depth