Testing now began at VAFB on the West Coast .
The first attempt ended ignominiously when Missile 27E lifted from OSTF - 1 ( Operational Silo Test Facility ) on June 7 .
Testing now began at VAFB on the West Coast , but the first attempt ended ignominiously when Missile 27E lifted from OSTF - 1 ( Operational Silo Test Facility ) on June 7 .