Leaving the nest.

Leaving the nest.

On Friday, Jesse reminded me of George C. Scott in Patton. Barking orders to me and a helper from TREA, he managed to get four Emriver models and our first Em4 ready for delivery to Minnesota. I tried not to get in his way. Especially when he rolled three 250 pound...

We add more Em4 parts. It works.

We add more Em4 parts. It works.

We introduced the Em4’s box to most of its parts today. Here’s a nice photo of the EDU, an acrylic energy dissipater we finished today. The Em4 is a mechanical beauty, wonderful to see in the flesh (aluminum, mostly) after after many months of design work....

An Emriver out, Em4 design/build, more spring.

An Emriver out, Em4 design/build, more spring.

Jessie and I cranked on Em4 pump testing, electronics, flow measurement, and the dye injection system. We are getting some hard lessons in hydraulics. The piped and centrifugal pump version has important differences from the open-channel kind I know well. Today it was...

Navier-Stokes video fun,  Emriver shipping, Em4.

Navier-Stokes video fun, Emriver shipping, Em4.

We had a busy Friday at LRRD. We’re hard at work on the Em4, and got an exciting and very expensive shipment of exotic materials for it. Jesse and Cara worked on shipping alternatives for the Emriver. We’re being asked to ship them to far places. At the...

Emriver models on a northbound truck.

Emriver models on a northbound truck.

Today we had a beautiful sunny day in Carbondale, and shipped two Emriver models to a Minnesota university. Our packing and shipping system needed fixing, so we did that. We’ve worked to make the Emriver as simple as it can be and do its job, but still there are...