Neither rain, nor snow, nor freezing cold shop… or some thing like that. In spite of the icicles on our chins we built, glued and made noise today. We are going to experiment with several different material designs for the next round of MHD tests. We made segmented plates and baked epoxy onto porcelain for the next round. We finished off the three fan units in the crew module mock up. We got to hear first hand how fan noise is a critical problem in life support systems, even with very quite fans. All the repair are complete with the chase plane so we pulled her outside to see if we could fired her up. With a few pull the engine roared to life. She feels like shes wants to fly.
Drew baking and Anthony cutting.
The top intake fan in the mock up.



A larger fan blade turning at a slower speed can move the same amount of air with less noise.