9. ATTACH THE SCIENCE BOOM TO THE SPUN BUS.

• Locate the black tab C at the inboard end of the SCIENCE BOOM. Insert this tab, black side up, into slot A on the SPUN BUS. Slot A is outboard on support S S.

  

• As you insert the tab, two V-shaped notches approach the outboard end of support S S. Engage both notches. Apply a generous amount of glue to the notches and to tab C, and at all points of contact. Adjust the SCIENCE BOOM so it extends straight and level out from the SPUN BUS, and allow the glue to dry thoroughly.

• Option: Nutation Damper. If you wish to represent the nutation damper, insert a straight pin into the upper inboard end of the SCIENCE BOOM, on the right side as viewed looking outboard. It should enter the paper just outboard of, and above, the end of support S S. Rotate the pin so that its head rests beside the nearest S on top of the SPUN BUS.