The Lehner 3060/9 has about 778 rpm/V. Or at least that is what Lehner says. That value is in the Triangular configuration. In Star config. it has 1,73 factor less rpm/V = 450 rpm/V and gains 1,73 factor more torque = 240 Ncm/A in triangular = 415,2 Ncm/A in star... of course I have to test it since those are all theoretical numbers...
A 80 mm jet has an rpm of maximum 12.000 rpm. (discovered it only today. Should had done my homework better...) That means that if i take that motor in star config. at 59 V I would get about 26.550 rpm out of it. By adding then a gearbox in factor 2.2 I would get 12.068 rpm and 913,44 Ncm out of it.
But, again, those are all theoretical numbers...
And since I'm still a student, I'm kinda slow in developing my project... If there is someone in Germany building a surfjetboard too, give me a pm. It would be nice to cooperate and join our forces together.
It would be nice to discover if it would be possible to build a jetsurf with a simple gearbox instead of these really costly motors. (Lehner 7040 and Scorpion hk7455-320kv)
A 80 mm jet has an rpm of maximum 12.000 rpm. (discovered it only today. Should had done my homework better...) That means that if i take that motor in star config. at 59 V I would get about 26.550 rpm out of it. By adding then a gearbox in factor 2.2 I would get 12.068 rpm and 913,44 Ncm out of it.
But, again, those are all theoretical numbers...
And since I'm still a student, I'm kinda slow in developing my project... If there is someone in Germany building a surfjetboard too, give me a pm. It would be nice to cooperate and join our forces together.
It would be nice to discover if it would be possible to build a jetsurf with a simple gearbox instead of these really costly motors. (Lehner 7040 and Scorpion hk7455-320kv)