cloud produced by the Fig device rose to approximately , with a base of roughly . Thirty minutes post detonation, radiation measurements at the blast site reached over 10,000 R/hr. The DOD experiments for Quince and Fig included Projects 1.4, 1.7. 2.4, 2.9, 2.10, 2.11, 2.14. and 8.7. Barge tests Barge mounted test detonations was a technique first used in 1954, and also compensated for the lack of land at the HP. When testing returned to Bikini atoll the use of barges as the shot point had begun, with one notable advantage, no radioactive surface zero areas were developed. Two large underwater craters were formed in 1954 and these were used as subsequent surface zeros for detonations fired from barges. This allowed the available land area to be used for the placement of measurement instrumentation and reuse of the same burst point without the long delays required for radiological cooling by natural decay or expensive and long decontamination procedures. Reuse of zero points also allowed reuse of instrument locations and recording shelters for several tests saving construction costs and time and Increasing test-scheduling flexibility. In HARDTACK the 26 barge events used only five detonation areas. Fir Fır predicted fallout, surface radiological exclusion (radex) areas, ship position, and aircraft participation. FIR was the first Bikini detonation of the Hardtack series. Detonated at 0550 on May 12, 1958. Fır was detonated on a barge in the Bravo crater, producing a yield range. After detonation, the cloud rose to . The FIR detonation was shortly followed by BUTTERNUT detonation on Enewetak 25 minutes later. DOD-sponsored experiments for FIR included Projects 3.7, 5.1, 6.4, 6.5, 6.6 and 6.11. Butternut BUTTERNUT predicted fallout, surface radiological exclusion areas (radex), ship positions, and aircraft participation. Butternut was detonated at 0615 on May 12, 1958, 25 minutes after FIR had been detonated at Enewetak. BUTTERNUT was detonated on a barge west of Runit, producing a yield range of . The cloud rose to , stabilizing at . The DOD-sponsored experiments for BUTTERNUT were Projects 5.1, 5.2, 5.3, 6.5, 6.6, and 6.9. Holly HOLLY predicted fallout, surface radiological exclusion (radex) areas, ship positions, and aircraft participation. HOLLY was detonated at 0630 on May 21, 1958, on a barge west of Runit, from the nearest edge of the island, producing a yield range. The detonation produced a cloud that stabilized at an altitude of at the top and at its