To: José N. Maldonado

From: Jon Hagen

Date: Nov. 5, 2001

Subject: Klystron Shipping Crates

Attached for your review are drawings for a klystron shipping container. We may need about 12 of these containers for the klystrons we expect to get from the base at Clear, Alaska. This design uses two steel rails to hold the same shock absorber/mounting ring arrangement used in the original all-metal containers. Here these rails do not tilt. Rather, the entire crate is tilted. End frames and support struts are also made from steel (welded angle stock). Outside longitudinal rails are wooden 4x4s. The entire crate is covered with 3/4" plywood, which acts as a structural element.

We have located the original manufacturer of the rubber shock mounts and have placed an order with them.

I welcome your comments, modifications to the design, and help with selecting the dimensions of the angle stock.