$23.$ The CyClon project team has started gathering information necessary to develop a

project network$$predecessor activities and activity time in days. The results of

their meeting are found in the following table:

Activity Description Duration Predecessor

$1$ CyClon Project

$2$ Design $10$

$3$ Procure prototype parts $102$

$4$ Fabricate parts $82$

$5$ Assemble prototype $43,4$

$6$ Laboratory test $75$

$7$ Field test $106$

$8$ Adjust design $67$

$9$ Order stock components $108$

$10$ Order custom components $158$

$11$ Assemble test production unit $109,10$

$12$ Test unit $511$

$13$ Document results $312$