SC-4198 (TR) (Report: SECRET) Card: UNCLASSIFIED Sandia Corp., Albq., N. Mex. 1. WARHEAD SYSTEM FOR THE HARDTACK 2. UNDERWATER NUCLEAR DETONATIONS. 3. I.D. Hamilton, R.J. Burton and C. E. Long. January, 1959. 80p. I. Il, Umbrella Burst WahooBurst _ Underwater Bursts Authors (3) Corp. Author N8 (Report: CONFIDENTIAL) GRAPHY, FILM CATALOG AND CAMERA DATA, OPERATION HARD- TACK, PHASE I, illp. October 15, 1958, l, 2, 3. 4. 5. I. HW. Corp. Author L-369 6. 7. Yucca Burst-Photography Wahoo Burst-- Photograph UmbrellsBurst -- Photography Teak Burst-- Photography Orange Burst-Photograp iy Fig Burst-- Photography Hardtack-- Photography \ N10 aw Edgerton, Germeshausen & Grier, Inc., Las Vegas PROGRAM 9: AFSWP-DOD PHOTO- \v EG&G-L-369