CT0564 1. VIEW OF ESCAPE TRAINING TANK, LOOKING NORTHEAST 2. VIEW OF ESCAPE TRAINING TANK, LOOKING NORTHWEST 3. VIEW OF ESCAPE TRAINING TANK, LOOKING SOUTH 4. VIEW OF ESCAPE TRAINING TANK, LOOKING EAST 5. VIEW OF ESCAPE TRAINING TANK, LOOKING NORTH 6. VIEW OF ESCAPE TRAINING TANK, LOOKING SOUTHEAST 7. VIEW OF ESCAPE TRAINING TANK, LOOKING UP SOUTH SIDE FROM 50-FOOT PASSAGEWAY, SHOWING 25-FOOT BLISTER AT LEFT, 18-FOOT PASSAGEWAY AND PLATFORM AT RIGHT 8. VIEW OF ESCAPE TRAINING TANK, LOOKING NORTHEAST FROM 50-FOOT PASSAGEWAY, SHOWING PORTION OF SPIRAL STAIR AND REPRESENTATIVE FLOOD LIGHT BLISTER 9. VIEW, LOOKING NORTH FROM LEFT TO RIGHT, SHOWING MEDICAL RESEARCH LABORATORY ANNEX, EXAMINING ROOM, AND EQUIPMENT ROOM 10. VIEW, LOOKING NORTHWEST FROM LEFT TO RIGHT, SHOWING PUMP ROOM AND DRESSING ROOM 11. VIEW, LOOKING EAST FROM LEFT TO RIGHT, SHOWING UNDERWATER WELDING/SCUBA ROOM, CLASSROOM BUILDING, AND MEDICAL RESEARCH LABORATORY ANNEX 12. VIEW, LOOKING SOUTH FROM LEFT TO RIGHT, SHOWING DRESSING FROM AND WORK/CHAMBER ROOM 13. VIEW, LOOKING WEST FROM LEFT TO RIGHT, SHOWING HIGH PRESSURE AIR FLASK ROOM AND PUMP ROOM 14. DETAIL VIEW OF ESCAPE TRAINING TANK, SHOWING HOLD-DOWN RODS, LOOKING SOUTH 15. VIEW OF ESCAPE TRAINING TANK, LOOKING EAST ACROSS MEZZANINE, SHOWING ENTRANCE TO SUBMARINE SECTION AT 110-FOOT LEVEL 16. INTERIOR VIEW OF SUBMARINE SECTION AT 110-FOOT LEVEL, ESCAPE TRAINING TANK, SHOWING LADDER TO ESCAPE TANK, LOOKING SOUTH 17. VIEW OF ESCAPE TRAINING TANK, SHOWING ENCLOSED PASSAGEWAY FROM ELEVATOR TO 18-FOOT LOCK, LOOKING EAST 18. VIEW OF ESCAPE TRAINING TANK, SHOWING ENCLOSED PASSAGEWAY FROM 50-FOOT LOCK TO ELEVATOR, LOOKING WEST 19. VIEW OF ESCAPE TRAINING TANK, LOOKING INTO 50-FOOT LOCK 20. DETAIL VIEW IN 18-FOOT LOCK, ESCAPE TRAINING TANK, SHOWING DOOR INTO TANK AT RIGHT 21. VIEW OF ESCAPE TRAINING TANK, SHOWING INTERIOR OF CUPOLA AND TOP OF THE TANK, LOOKING NORTHEAST 22. VIEW OF ESCAPE TRAINING TANK, LOOKING WEST FROM EAST SIDE OF CUPOLA TOWARD ELEVATOR. TWO-LOCK RECOMPRESSION CHAMBER AT REAR 23. VIEW OF ESCAPE TRAINING TANK, LOOKING NORTHWEST, SHOWING TWO-LOCK RECOMPRESSION CHAMBER IN PASSAGEWAY FROM ELEVATOR TO CUPOLA 24. VIEW OF EQUIPMENT ROOM WITH TRIPLE-LOCK RECOMPRESSION CHAMBER, LOOKING SOUTHWEST 25. VIEW OF PUMP ROOM, LOOKING EAST, SHOWING AIR COMPRESSORS 26. VIEW OF PUMP ROOM, SHOWING PORTIONS OF HIGH PRESSURE AIR SYSTEM AT LEFT AND CENTER AND OVERFLOW STORAGE TANK AT RIGHT, LOOKING NORTHWEST 27. VIEW OF UNDERWATER WELDING/SCUBA ROOM, FIRST FLOOR, LOOKING NORTH. Former location of tank indicated by circular ridge in linoleum at bottom right, and by framing of second floor at top right. Silhouettes of driver and two sharks on the floor are associated with the use of this building for scuba training. 28. VIEW OF OCTAGONAL SPREAD FOOTING AND HOLD-DOWN RODS [1929], SUBMARINE ESCAPE TRAINING TANK 29. VIEW OF SUBMARINE ESCAPE TRAINING TANK DURING CONSTRUCTION AT POINT JUST ABOVE THE SUBMARINE SECTION AT THE 110-FOOT LEVEL [1929-1930] 30. VIEW OF PHOTO CAPTIONED "SUBMARINE BASE, NEW LONDON, CONNECTICUT. 2 JUNE 1930. SUBMARINE TRAINING TANK - STEELWORK 98% COMPLETE; BRICKWORK 95% COMPLETE, PIPING 10% IN PLACE. LOOKING NORTH. CONTRACT NO. Y-1539-ELEVATOR, SUBMARINE ESCAPE TANK." 31. VIEW OF SUBMARINE ESCAPE TRAINING TANK DURING CONSTRUCTION OF THE ELEVATOR AND PASSAGEWAYS TO THE 18- AND 50-FOOT LOCKS AND CUPOLA [1932] 32. VIEW OF PHOTO CAPTIONED "SUBMARINE BASE, NEW LONDON, CONN. OCTOBER 3, 1932. COMPLETION OF ERECTION OF STEELWORK FOR ELEVATOR. LOOKING NORTH. CONTRACT NO. Y-1539-ELEVATOR, SUBMARINE ESCAPE TANK." 33. VIEW LOOKING UP EAST SIDE OF SUBMARINE ESCAPE TRAINING TANK [No date] 34. VIEW OF SUBMARINE ESCAPE TRAINING TANK PRIOR TO ADDITION OF BLISTERS IN 1959, LOOKING SOUTHEAST 35. INTERIOR VIEW OF EQUIPMENT HOUSE, SUBMARINE ESCAPE TRAINING TANK, PRIOR TO ENLARGEMENT OF ROOM AND INSTALLATION OF TRIPLE-LOCK RECOMPRESSION CHAMBER IN 1957 36. VIEW OF CUPOLA, SUBMARINE ESCAPE TRAINING TANK, SHOWING ROVING RESCUE BELL SUSPENDED ABOVE TANK, WITH TWO-LOCK RECOMPRESSION CHAMBER AT REAR, LOOKING WEST. Photo taken after installation of recompression chamber in 1956. 37. INTERIOR VIEW OF TANK FROM THE TOP, SHOWING LADDERS ON SIDES AND THE WATERTIGHT DOOR OF THE 18-FOOT LOCK [No date] 38. INTERIOR VIEW OF TANK. Suspended wooden platform obscures bottom of tank [No date] 39. VIEW OF TRAINEE EMERGING FROM ON THE AIR LOCKS INTO THE SUBMARINE ESCAPE TRAINING TANK. HIGH HOOKS STRADDLES DOOR AT LEFT, WHILE LOW HOOKS ASSISTS TRAINEE [No date] 40. VIEW LOOKING IN TANK JUST OUTSIDE DOOR TO AIR LOCK. HIGH HOOKS IS POSITIONING THE STEINKE HOOD ON THE TRAINEE, WHILE LOW HOOKS HOLDS HIM IN PLACE [No date] 41. VIEW LOOKING IN TANK, SHOWING TRAINING DURING ASCENT (WEARING STEINKE HOOD) AT RIGHT, DIVING INSTRUCTOR AT LEFT MAINTAINING HIS POSITION ON THE WIRE [No date] 42. VIEW SHOWING A GROUP OF TRAINEES DURING 50-LB PRESSURE TEST IN RECOMPRESSION CHAMBER IN EQUIPMENT HOUSE [No date] 43. GENERAL PLAN OF TANK, Y&D No. 107721 Scales 3/16" and 3/4" = 1'; July 2, 1929 44. TANK LOFT: PLANS, ELEVATIONS AND DETAILS, Y&D No. 107722 Scales as indicated; July 2, 1929 45. STEEL FRAMING FOR LOFT, Y&D No. 107723 Scales 1/2" and 1-1/2" = 1"; July 2, 1929 46. DETAILS OF PLATFORMS & STAIRS, Y&D No. 107724 Scales 3/4" = 1' and as indicated; July 2, 1929 47. FOUNDATION PLAN, Y&D No. 107725 Scales as noted; July 2, 1929 48. DETAILS OF AIR LOCKS, Y&D No. 107726 Scale 3/4" = 1';July 2, 1929 49. DETAILS OF SUBMARINE SECTION, Y&D No. 107727 Scale 3/8" and 1-1/2" = 1'; July 2, 1929 50. PIPING FOR SUBMARINE SECTION, Y&D No. 107728 Scale 3/8" = 1'; August 26, 1929 51. LOFT. HEATING. PLANS, ELEVATIONS 7 DETAILS, Y&D No. 107729 Scales 3/16", 1/4", 1/2", and 1'; July 2, 1929 52. EQUIPMENT HOUSE, Y&D No. 107730 Scales 1/4", 3/8", 3/4", 1-1/2" and 3" = 1'; July 2, 1929 53. EQUIPMENT HOUSE AND PIPING, PLANS AND ELEVATION, Y&D No. 107731 Scale 1/2" = 1', July 2, 1929