VIII 70 aircraft missions were cancelled, many of them because of requirements, This happened frequently during the later weeks of the test series.” Chart: Schedule for Operation PLUMBEOB Shot Date BOLTEMAN 28 May 1957 Type. FRANKLIN 2 June 1957 LASSEN S June 1957 WILSON 18 June 1957 PRISCILEA | * 2), June 1957 7 500-foot tower 300-foot tower 500 feet balloon 1,700 feet balloon , 700 feet 1 Jaly 1957 Surface HOOD 5 July 1957 1,000 feet 15 July 1957 JOHN 19 July 1957 18,000 feet altitude KEPLER 2 July 1957 500-foot OWENS 25 July 1957 PASCAL A 26 July 1957 STOKES 7 August 1957 Not sampled ; balloon DIABLO ~ ~ balloon COULOMB A : Remarks 500-foot _ tower of) . So Launched from P-89J tower 500 feet balloon | Well Not sampled 1,000 feet balloon *See Appendix II for number of samples taken on each shot, SWEH~2-003), APWL/HO 1s