Happy Birthday, U.S. Navy

ACROSS
1. Amphibian
4. Bathroom on Navy ship
8. Reef, sandbar, or shoal
13. Sphere
14. Bank robbery?
16. Continent
17. Duty status of some military personnel
18. Navy P-3s
19. Former Russian ruler
20. Terminate
21. What sailor does in mess
23. Make mistake
24. Burn residue
25. Snakelike fish
27. Fed. organization concerned with national security
28. Part of old Navy sailing ships
30. On ship, to rear
32. Toboggan
34. Navy vessel
37. Small amount or degree
39. Conjunction
40. A Guthrie
41. Type of moss
43. Crib sheets
45. On ship, place to steer ship
46. On ship, a level
48. Fish
50. Knight’s address
53. Warm air, rising
57. Space
58. Affirmative expression from sailor
59. To tease (someone) good-humoredly
61. Model Carol
62. Actress Blethyn
64. Norway capital
65. Military orders that govern action with enemy
66. Commander’s area of concern, in brief
67. UH-1 helicopter, informally
68. Maximum
69. Dinner starter?
70. Compass dir.

DOWN
1. Navy F-14s
2. USAF inspection
3. Shame
4. Navy F-18s
5. To omit or slur over
6. Bother
7. Desert windrows
9. Head covering
10. German city
11. Fibbers
12. Civil War hero Admiral David G. ____
14. Garden tool
15. Helpful commercial, in brief
22. 27th president
26. Den
29. Computed
31. Dubbed
33. Member of people inhabiting Mekong River area
35. Navy E-2
36. Material forming cells or tissue
38. Marina __ Rey
42. Guitar player need
43. Navy equivalent to AFB
44. Place
45. 2001: A Space Odyssey computer
47. Necessities to steer ship
49. U.S. Navy hero Oliver ___ Perry
51. Alaska home?
52. Navy equivalents to AFSCs
54. Relating to or in region of kidneys
55. Petty officer in charge of ship’s crew, anchors and cables
56. On ship, call to another ship?
59. U.S. Navy hero ___ Paul Jones
60. Dispatched
61. Appendage
63. Morgue status?