Was browsing through the
RD PDF, and applying the
centrifgual pump laws.
Basically what we'd be asking from Iwaki is an RD-20 that spins at 2900rpm (@ 12.0v).
Sure, it's not going to happen, but it's nice to dream.
The only moderate draw-back to this though is that the Iwaki pumps aren't that quiet. They're not horribly noisy either, but they're certainly not "near silent".