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  1. Main Page‏‎ (104 revisions)
  2. Action Items‏‎ (48 revisions)
  3. Dictionary Edit Procedures‏‎ (32 revisions)
  4. Catadioptric‏‎ (27 revisions)
  5. Acronyms‏‎ (24 revisions)
  6. Report to PAP‏‎ (21 revisions)
  7. Dictionary Indexes‏‎ (14 revisions)
  8. Subtense Angle‏‎ (11 revisions)
  9. Sandbox‏‎ (11 revisions)
  10. Post‏‎ (10 revisions)
  11. Total Subtense‏‎ (10 revisions)
  12. Competent Authority‏‎ (9 revisions)
  13. Geographical Range‏‎ (9 revisions)
  14. Chapter Index‏‎ (9 revisions)
  15. How to...‏‎ (9 revisions)
  16. Buoyant beacon‏‎ (9 revisions)
  17. Ring‏‎ (9 revisions)
  18. Access hatch‏‎ (9 revisions)
  19. Guard-rail‏‎ (8 revisions)
  20. Whistle buoy‏‎ (8 revisions)
  21. Bell buoy‏‎ (8 revisions)
  22. TestPage‏‎ (8 revisions)
  23. Augmentation‏‎ (8 revisions)
  24. TestPage/de‏‎ (8 revisions)
  25. Winch‏‎ (8 revisions)
  26. Absorptance/de‏‎ (8 revisions)
  27. Astragals‏‎ (8 revisions)
  28. Lantern‏‎ (8 revisions)
  29. Radar reflector‏‎ (8 revisions)
  30. Focal Distance‏‎ (7 revisions)
  31. Drum Lens‏‎ (7 revisions)
  32. Fixed Lens‏‎ (7 revisions)
  33. Dioptric‏‎ (7 revisions)
  34. Chain stopper‏‎ (7 revisions)
  35. Spectral Luminous Efficiency‏‎ (7 revisions)
  36. Focus (of a fixed lens)‏‎ (7 revisions)
  37. Aberration‏‎ (7 revisions)
  38. Belt (of a fixed lens)‏‎ (7 revisions)
  39. Reserve buoyancy‏‎ (7 revisions)
  40. Allard's Law‏‎ (7 revisions)
  41. Fluorescence‏‎ (7 revisions)
  42. Frame (of an optic)‏‎ (7 revisions)
  43. Surface-following discus buoy‏‎ (7 revisions)
  44. Derrick hoist‏‎ (7 revisions)
  45. Axis (of a fixed lens)‏‎ (7 revisions)
  46. Access manhole‏‎ (7 revisions)
  47. Fresnel Profile‏‎ (7 revisions)
  48. Pre-Focus Lamp‏‎ (6 revisions)
  49. Gross errors‏‎ (6 revisions)
  50. Primary Light Source‏‎ (6 revisions)
  51. Handy-billy tackle‏‎ (6 revisions)
  52. Chart error‏‎ (6 revisions)
  53. Windlass‏‎ (6 revisions)
  54. Opal Lamp‏‎ (6 revisions)
  55. Total System Error (TSE)‏‎ (6 revisions)
  56. Coiled-Coil Lamp‏‎ (6 revisions)
  57. Fix‏‎ (6 revisions)
  58. Luminous Element‏‎ (6 revisions)
  59. Flash Tube‏‎ (6 revisions)
  60. Service Vessels‏‎ (6 revisions)
  61. Diverged Beam‏‎ (6 revisions)
  62. Shackle‏‎ (6 revisions)
  63. Double topping lift‏‎ (6 revisions)
  64. Dropping‏‎ (6 revisions)
  65. Along-track error‏‎ (6 revisions)
  66. Vacuum Lamp‏‎ (6 revisions)
  67. Kenter shackle‏‎ (6 revisions)
  68. Cross-track error‏‎ (6 revisions)
  69. Buoy lantern‏‎ (6 revisions)
  70. Regulator‏‎ (6 revisions)
  71. Mooring‏‎ (6 revisions)
  72. Sling‏‎ (6 revisions)
  73. Murette‏‎ (6 revisions)
  74. Lewis (GB)‏‎ (6 revisions)
  75. Chain locker‏‎ (6 revisions)
  76. Chayka‏‎ (6 revisions)
  77. Oil Lamp‏‎ (6 revisions)
  78. Extra High Pressure Mercury (Vapour) Lamp‏‎ (6 revisions)
  79. Hollow truncated cone filament‏‎ (6 revisions)
  80. Ballast Lamp‏‎ (6 revisions)
  81. Split key‏‎ (6 revisions)
  82. Stabilizing pendulum‏‎ (6 revisions)
  83. Dilution of precision (DOP)‏‎ (6 revisions)
  84. Parabolic Reflector‏‎ (6 revisions)
  85. Flashed Glass‏‎ (6 revisions)
  86. Focal Plane (of a lens or focusing reflector)‏‎ (6 revisions)
  87. Photoluminescence‏‎ (6 revisions)
  88. Douglas Lamp (G.B.)‏‎ (6 revisions)
  89. Lampholder‏‎ (6 revisions)
  90. Tackle‏‎ (6 revisions)
  91. Sinker‏‎ (6 revisions)
  92. Mooring buoy‏‎ (6 revisions)
  93. Lantern gallery‏‎ (6 revisions)
  94. Goliath Cap (G.B.)‏‎ (6 revisions)
  95. Mushroom anchor (USA)‏‎ (6 revisions)
  96. Ground and Polished Glass‏‎ (6 revisions)
  97. Thrash (chain)‏‎ (6 revisions)
  98. Life (of a lamp)‏‎ (6 revisions)
  99. Chain sling‏‎ (6 revisions)
  100. ODAS buoy‏‎ (6 revisions)
  101. Light float‏‎ (6 revisions)
  102. Automatic light vessel‏‎ (6 revisions)
  103. Optical Glass‏‎ (6 revisions)
  104. Screw Cap‏‎ (6 revisions)
  105. Main Electrode‏‎ (6 revisions)
  106. Focal Plane (of a light)‏‎ (6 revisions)
  107. Service buoy‏‎ (6 revisions)
  108. Mantle‏‎ (6 revisions)
  109. Mean Time To Repair/Restore (MTTR)‏‎ (6 revisions)
  110. Frosted Lamp‏‎ (6 revisions)
  111. Buoy light‏‎ (6 revisions)
  112. Tail chain‏‎ (6 revisions)
  113. Repeatability‏‎ (6 revisions)
  114. Lantern glazing (GB)‏‎ (6 revisions)
  115. Lead-in Wire‏‎ (6 revisions)
  116. Nigrescence Time (of a lamp)‏‎ (6 revisions)
  117. Life Test‏‎ (6 revisions)
  118. Winter buoy‏‎ (6 revisions)
  119. Time to alarm‏‎ (6 revisions)
  120. Root mean square error (RMS)‏‎ (6 revisions)
  121. Topmark‏‎ (6 revisions)
  122. Open-link chain‏‎ (6 revisions)
  123. Optical Panel‏‎ (6 revisions)
  124. Incandescence‏‎ (6 revisions)
  125. True position‏‎ (6 revisions)
  126. Service capacity‏‎ (6 revisions)
  127. Mantle Burner‏‎ (6 revisions)
  128. Diverted Beam‏‎ (6 revisions)
  129. Body‏‎ (6 revisions)
  130. Additional Secondary Factors (ASF)‏‎ (6 revisions)
  131. Shock absorber‏‎ (6 revisions)
  132. Reflector Lamp‏‎ (6 revisions)
  133. Anchor‏‎ (6 revisions)
  134. Reinforcing Mirror‏‎ (6 revisions)
  135. Tail tube (of a buoy)‏‎ (6 revisions)
  136. Cap(G.B.)‏‎ (6 revisions)
  137. Anti-fouling paint‏‎ (6 revisions)
  138. Precision‏‎ (6 revisions)
  139. Ground chain‏‎ (6 revisions)
  140. Nipple‏‎ (6 revisions)
  141. Wick‏‎ (6 revisions)
  142. High-speed launch‏‎ (6 revisions)
  143. Eye‏‎ (6 revisions)
  144. Coastal tender (USA)‏‎ (6 revisions)
  145. Incandescence Time (of a lamp)‏‎ (6 revisions)
  146. Paraffin Vapour Lamp‏‎ (6 revisions)
  147. Inland tender (USA)‏‎ (6 revisions)
  148. Flashing (Optical) Apparatus‏‎ (6 revisions)
  149. Senhouse slip (GB)‏‎ (6 revisions)
  150. Focusing‏‎ (6 revisions)
  151. Distance root mean square (dRMS)‏‎ (6 revisions)
  152. Accuracy‏‎ (6 revisions)
  153. Rated Life (of a lamp)‏‎ (6 revisions)
  154. Diverting Prism‏‎ (6 revisions)
  155. Buoy pocket‏‎ (6 revisions)
  156. Cable holder (GB)‏‎ (6 revisions)
  157. Mooring line‏‎ (6 revisions)
  158. Lantern tower‏‎ (6 revisions)
  159. Cathodic protection‏‎ (6 revisions)
  160. Decca Navigator‏‎ (6 revisions)
  161. Chimney‏‎ (6 revisions)
  162. Wire rope‏‎ (6 revisions)
  163. Backing‏‎ (6 revisions)
  164. Safety hand-hold‏‎ (6 revisions)
  165. Filament‏‎ (6 revisions)
  166. Incandescent (Electric) Lamp‏‎ (6 revisions)
  167. Marginally detectable bias (MDB)‏‎ (6 revisions)
  168. Forelock‏‎ (6 revisions)
  169. Useful Life (of a lamp)‏‎ (6 revisions)
  170. Middle-Ground Marks (or Buoys)‏‎ (6 revisions)
  171. Cruciform Filament‏‎ (6 revisions)
  172. Buoy station‏‎ (6 revisions)
  173. Anchor davit‏‎ (6 revisions)
  174. Cable reliever‏‎ (6 revisions)
  175. Mooring recovery wire‏‎ (6 revisions)
  176. Gong buoy (USA)‏‎ (6 revisions)
  177. Dan buoy‏‎ (6 revisions)
  178. Capstan‏‎ (6 revisions)
  179. Navigation (2)‏‎ (6 revisions)
  180. Prism‏‎ (6 revisions)
  181. Lifting gear‏‎ (6 revisions)
  182. Depolished Glass‏‎ (6 revisions)
  183. Line‏‎ (6 revisions)
  184. High Intensity Carbon Arc Lamp‏‎ (6 revisions)
  185. Backing anchor‏‎ (6 revisions)
  186. Topping lift‏‎ (6 revisions)
  187. Order (of an optic)‏‎ (6 revisions)
  188. Colour Filter‏‎ (6 revisions)
  189. Battery rack‏‎ (6 revisions)
  190. Marginally detectable error (MDE)‏‎ (6 revisions)
  191. Pin Cap (G.B.)‏‎ (6 revisions)
  192. Plate Glass‏‎ (6 revisions)
  193. Anchor ring‏‎ (6 revisions)
  194. Simmering Current‏‎ (6 revisions)
  195. Mooring rope‏‎ (6 revisions)
  196. Large navigation(al) buoy‏‎ (6 revisions)
  197. Electroluminescence‏‎ (6 revisions)
  198. Carbon Arc Lamp‏‎ (6 revisions)
  199. Prismatic Lens‏‎ (6 revisions)
  200. Pseudolite (pseudo-satellite)‏‎ (6 revisions)
  201. Light vessel‏‎ (6 revisions)
  202. Hawsepipe (of a vessel)‏‎ (6 revisions)
  203. Chock‏‎ (6 revisions)
  204. Work barge‏‎ (6 revisions)
  205. High Pressure Arc Discharge Lamp‏‎ (6 revisions)
  206. Rack‏‎ (6 revisions)
  207. Filament Support‏‎ (6 revisions)
  208. Starter‏‎ (6 revisions)
  209. Tubular Discharge Lamp‏‎ (6 revisions)
  210. Main drum (of a winch)‏‎ (6 revisions)
  211. Service motor boat‏‎ (6 revisions)
  212. Superstructure (of a buoy)‏‎ (6 revisions)
  213. Redundancy (2)‏‎ (6 revisions)
  214. Bulb‏‎ (6 revisions)
  215. Buoy vent‏‎ (6 revisions)
  216. Anchor shackle‏‎ (6 revisions)
  217. Lashing‏‎ (6 revisions)
  218. Catoptric‏‎ (6 revisions)
  219. Assembled Lens‏‎ (6 revisions)
  220. Threshold value (or alert limit)‏‎ (6 revisions)
  221. Prismatic Section‏‎ (6 revisions)
  222. Light-Centre-Length‏‎ (6 revisions)
  223. Equi-Angular Lens‏‎ (6 revisions)
  224. Light vessel station‏‎ (6 revisions)
  225. Hawser‏‎ (6 revisions)
  226. Depot motor launch‏‎ (6 revisions)
  227. High Pressure Mercury (Vapour) Lamp‏‎ (6 revisions)
  228. Loran C (2)‏‎ (6 revisions)
  229. Low Pressure Mercury (Vapour) Lamp‏‎ (6 revisions)
  230. Tubular Lamp‏‎ (6 revisions)
  231. Converged Beam‏‎ (6 revisions)
  232. Stud-link chain‏‎ (6 revisions)
  233. Alert limit (or threshold value)‏‎ (6 revisions)
  234. Messenger‏‎ (6 revisions)
  235. Full Operational Capability (FOC)‏‎ (6 revisions)
  236. Coverage‏‎ (6 revisions)
  237. Kink‏‎ (6 revisions)
  238. Buoy working gangway (GB)‏‎ (6 revisions)
  239. Snatch block‏‎ (6 revisions)
  240. Profile (of a fixed lens)‏‎ (6 revisions)
  241. Hack boat (GB)‏‎ (6 revisions)
  242. Equi-Angular Profile‏‎ (6 revisions)
  243. Availability‏‎ (6 revisions)
  244. World-Wide Radio Navigation System‏‎ (6 revisions)
  245. Rotating Optic‏‎ (6 revisions)
  246. High Pressure Sodium (Vapour) Lamp‏‎ (6 revisions)
  247. Low Pressure Sodium (Vapour) Lamp‏‎ (6 revisions)
  248. Discharge Lamp‏‎ (6 revisions)
  249. Continuity‏‎ (6 revisions)
  250. Mean time between failures (MTBF)‏‎ (6 revisions)
  251. Drift circle‏‎ (6 revisions)
  252. Bridle‏‎ (6 revisions)
  253. Craft autonomous integrity monitoring (CAIM)‏‎ (6 revisions)
  254. Cupola‏‎ (6 revisions)
  255. Buoy yard‏‎ (6 revisions)
  256. Systematic error‏‎ (6 revisions)
  257. Reliability (of a position fix)‏‎ (6 revisions)
  258. Latency‏‎ (6 revisions)
  259. Grapnel‏‎ (6 revisions)
  260. Riding chain‏‎ (6 revisions)
  261. Profile (of a lens, other than a fixed lens)‏‎ (6 revisions)
  262. River tender (USA)‏‎ (6 revisions)
  263. World geodetic system (WGS)‏‎ (6 revisions)
  264. Barge‏‎ (6 revisions)
  265. Towing winch‏‎ (6 revisions)
  266. Bayonet Cap‏‎ (6 revisions)
  267. Standard Lamp‏‎ (6 revisions)
  268. Starting Electrode‏‎ (6 revisions)
  269. Radio determination‏‎ (6 revisions)
  270. Tungsten-Halogen Lamp‏‎ (6 revisions)
  271. Stepped Lens‏‎ (6 revisions)
  272. Straight-Filament Lamp‏‎ (6 revisions)
  273. Drift circle radius‏‎ (6 revisions)
  274. Correction‏‎ (6 revisions)
  275. Bridle (chain)‏‎ (6 revisions)
  276. Metacentre (of a buoy)‏‎ (6 revisions)
  277. Bullivant nipper‏‎ (6 revisions)
  278. Ambiguity‏‎ (6 revisions)
  279. Miniature Cap‏‎ (6 revisions)
  280. Anchoring‏‎ (6 revisions)
  281. Single-Coil Lamp‏‎ (6 revisions)
  282. Reliability (of an observation)‏‎ (6 revisions)
  283. Warping end (GB)‏‎ (6 revisions)
  284. Moulded Glass (or plastic)‏‎ (6 revisions)
  285. Davit‏‎ (6 revisions)
  286. Rigging‏‎ (6 revisions)
  287. Failure‏‎ (6 revisions)
  288. Spherical Reflector‏‎ (6 revisions)
  289. Filter‏‎ (6 revisions)
  290. PZ-90 geodetic system‏‎ (6 revisions)
  291. Flame Arc Lamp‏‎ (6 revisions)
  292. Trimming‏‎ (6 revisions)
  293. Pitch (of a chain)‏‎ (6 revisions)
  294. Metacentric height‏‎ (6 revisions)
  295. Bullseye‏‎ (6 revisions)
  296. Gas-Filled Lamp‏‎ (6 revisions)
  297. Relief‏‎ (6 revisions)
  298. Pontoon‏‎ (6 revisions)
  299. Multi-Vee Filament (G.B.)‏‎ (6 revisions)
  300. Leg (of chain)‏‎ (6 revisions)
  301. Projector‏‎ (6 revisions)
  302. Halide Lamp‏‎ (6 revisions)
  303. Derrick‏‎ (6 revisions)
  304. Diameter (of a chain)‏‎ (6 revisions)
  305. Optic‏‎ (6 revisions)
  306. Long-Arc Lamp‏‎ (6 revisions)
  307. Fenders‏‎ (6 revisions)
  308. Difference in Time Of Arrival (DTOA)‏‎ (6 revisions)
  309. Inspection cover‏‎ (6 revisions)
  310. Integrated navigation system‏‎ (6 revisions)
  311. International Terrestrial Reference Frame (ITRF)‏‎ (6 revisions)
  312. Bow roller‏‎ (6 revisions)
  313. E-Navigation‏‎ (6 revisions)
  314. Bunch Filament (G.B.)‏‎ (6 revisions)
  315. Gas Jet‏‎ (6 revisions)
  316. Relief davit‏‎ (6 revisions)
  317. Grid Filament‏‎ (6 revisions)
  318. Arc‏‎ (6 revisions)
  319. Neutral Filter‏‎ (6 revisions)
  320. Lens‏‎ (6 revisions)
  321. Centre of buoyancy (of a buoy)‏‎ (6 revisions)
  322. Projector Lamp (G.B.)‏‎ (6 revisions)
  323. Ballast‏‎ (6 revisions)
  324. Secondary Light Source‏‎ (6 revisions)
  325. Luminescence‏‎ (6 revisions)
  326. Access ladder‏‎ (6 revisions)
  327. Bower anchor‏‎ (6 revisions)
  328. Fresnel Lens‏‎ (6 revisions)
  329. Metal Vapour Lamp‏‎ (6 revisions)
  330. ELoran‏‎ (6 revisions)
  331. Buoy‏‎ (6 revisions)
  332. Gas cylinder‏‎ (6 revisions)
  333. Burner‏‎ (6 revisions)
  334. Global Maritime Distress and Safety System (GMDSS)‏‎ (6 revisions)
  335. Watch buoy‏‎ (6 revisions)
  336. Multi-point mooring‏‎ (6 revisions)
  337. Arc (Discharge)‏‎ (6 revisions)
  338. Centre of gravity (of a buoy)‏‎ (6 revisions)
  339. Whip‏‎ (6 revisions)
  340. Deck crane‏‎ (6 revisions)
  341. Lighthouse tender‏‎ (6 revisions)
  342. Link (of a chain)‏‎ (6 revisions)
  343. Fluorescent Lamp‏‎ (6 revisions)
  344. Integrity‏‎ (6 revisions)
  345. Contrast‏‎ (6 revisions)
  346. Block‏‎ (6 revisions)
  347. Phosphorescence‏‎ (6 revisions)
  348. Short-Arc Lamp‏‎ (6 revisions)
  349. Swivel‏‎ (6 revisions)
  350. Lamp‏‎ (6 revisions)
  351. Angle of Divergence/de‏‎ (6 revisions)
  352. Global Navigation Satellite System (GNSS)‏‎ (6 revisions)
  353. Slewing guy‏‎ (6 revisions)
  354. Pre-Focus Cap‏‎ (6 revisions)
  355. Arc Lamp‏‎ (6 revisions)
  356. Pricking Out‏‎ (6 revisions)
  357. Non-skid covering‏‎ (6 revisions)
  358. Roll damping device‏‎ (6 revisions)
  359. Spare light vessel (GB)‏‎ (6 revisions)
  360. Rough Service Lamp‏‎ (6 revisions)
  361. Optical Axis‏‎ (6 revisions)
  362. Differential system‏‎ (6 revisions)
  363. Initial Operational Capability (IOC)‏‎ (6 revisions)
  364. Fluorescent Mercury Discharge Lamp‏‎ (6 revisions)
  365. Random error (2)‏‎ (6 revisions)
  366. Stray Light‏‎ (6 revisions)
  367. Metallised Lamp‏‎ (6 revisions)
  368. Vessel Technical Error (VTE)‏‎ (6 revisions)
  369. Signal Lamp‏‎ (6 revisions)
  370. Mirror‏‎ (6 revisions)
  371. Gaseous Discharge Lamp‏‎ (6 revisions)
  372. Single point of failure‏‎ (6 revisions)
  373. Cylindrical Filament‏‎ (6 revisions)
  374. Blondel-Rey Law‏‎ (5 revisions)
  375. Audible Signal/es‏‎ (5 revisions)
  376. Light float (2)/es‏‎ (5 revisions)
  377. High Focal Plane Buoy‏‎ (5 revisions)
  378. Classification of emissions‏‎ (5 revisions)
  379. Stakeholder(s)‏‎ (5 revisions)
  380. Absorptance‏‎ (5 revisions)
  381. Detection of an AtoN light‏‎ (5 revisions)
  382. Direction Light‏‎ (5 revisions)
  383. Isolated Danger Mark (or Buoy) (G.B.)‏‎ (5 revisions)
  384. Vertical Beam Divergence‏‎ (5 revisions)
  385. Astragals (2)‏‎ (5 revisions)
  386. Direction Light (2)‏‎ (5 revisions)
  387. Automatic control system‏‎ (5 revisions)
  388. Daytime Character‏‎ (4 revisions)
  389. Retro-Reflection‏‎ (4 revisions)
  390. Light Valve‏‎ (4 revisions)
  391. Lighting (of a light)‏‎ (4 revisions)
  392. Wreck Mark (or Buoy)‏‎ (4 revisions)
  393. Optical Density‏‎ (4 revisions)
  394. Image‏‎ (4 revisions)
  395. Standby Lamp‏‎ (4 revisions)
  396. Two buoys mored abreast in a channel‏‎ (4 revisions)
  397. Stiles-Crawford Effect‏‎ (4 revisions)
  398. Photoelectric Photometer‏‎ (4 revisions)
  399. VTS Manager‏‎ (4 revisions)
  400. Meteorological Optical Range‏‎ (4 revisions)
  401. Vessel Traffic Management‏‎ (4 revisions)
  402. Angle of Uncertainty‏‎ (4 revisions)
  403. Retro-Reflector‏‎ (4 revisions)
  404. Whistle Buoy (2)‏‎ (4 revisions)
  405. Light controller‏‎ (4 revisions)
  406. Winter Buoy (U.S.A.)‏‎ (4 revisions)
  407. Rollers‏‎ (4 revisions)
  408. Coastal Mark‏‎ (4 revisions)
  409. Optical Focus‏‎ (4 revisions)
  410. Standby Light‏‎ (4 revisions)
  411. Luminous Exitance‏‎ (4 revisions)
  412. Semaphore‏‎ (4 revisions)
  413. Two buoys mored not abreast in a channel‏‎ (4 revisions)
  414. Manned Light (U.S.A.)‏‎ (4 revisions)
  415. Unlighted Buoy‏‎ (4 revisions)
  416. Inverse Square Law‏‎ (4 revisions)
  417. Ship Domain‏‎ (4 revisions)
  418. Mercury Bath‏‎ (4 revisions)
  419. Front Light‏‎ (4 revisions)
  420. Meteorological Visibility‏‎ (4 revisions)
  421. Mixed Reflection‏‎ (4 revisions)
  422. Revalidation Training‏‎ (4 revisions)
  423. Audible Signal‏‎ (4 revisions)
  424. Winter Light (U.S.A.)‏‎ (4 revisions)
  425. Spoil Ground Mark (or Buoy)‏‎ (4 revisions)
  426. Quick-Flashing Light‏‎ (4 revisions)
  427. Luminous Flux‏‎ (4 revisions)
  428. Flasher‏‎ (4 revisions)
  429. Bell Buoy (2)‏‎ (4 revisions)
  430. Permanent Light‏‎ (4 revisions)
  431. Unwatched Light‏‎ (4 revisions)
  432. Photometer‏‎ (4 revisions)
  433. Ship Safety Zone‏‎ (4 revisions)
  434. Pilot Light‏‎ (4 revisions)
  435. Reflector (2)‏‎ (4 revisions)
  436. Mixed Transmission‏‎ (4 revisions)
  437. Cut-off screen‏‎ (4 revisions)
  438. White‏‎ (4 revisions)
  439. Purkinje Phenomenon‏‎ (4 revisions)
  440. Transition Mark (or Buoy)‏‎ (4 revisions)
  441. Fixed Light‏‎ (4 revisions)
  442. Competence‏‎ (4 revisions)
  443. Luminous Intensity‏‎ (4 revisions)
  444. Main Light‏‎ (4 revisions)
  445. Stripes‏‎ (4 revisions)
  446. Photometry‏‎ (4 revisions)
  447. VTS Operator Certificate‏‎ (4 revisions)
  448. Vaporiser‏‎ (4 revisions)
  449. Micrometer Valve‏‎ (4 revisions)
  450. Fusion Frequency‏‎ (4 revisions)
  451. Mixer‏‎ (4 revisions)
  452. Gong Buoy (U.S.A.) (2)‏‎ (4 revisions)
  453. Emergency Light‏‎ (4 revisions)
  454. Threshold of Illuminance‏‎ (4 revisions)
  455. Audible Signal/fr‏‎ (4 revisions)
  456. Chequers (G.B.)‏‎ (4 revisions)
  457. Background Luminance‏‎ (4 revisions)
  458. Diffuse Reflection‏‎ (4 revisions)
  459. Colorimetry‏‎ (4 revisions)
  460. Radial Screens‏‎ (4 revisions)
  461. Fixed Mark‏‎ (4 revisions)
  462. Sector (of a sector light)‏‎ (4 revisions)
  463. Luminous Pencil Beam‏‎ (4 revisions)
  464. Intermediate Light(s)‏‎ (4 revisions)
  465. Photopic Vision‏‎ (4 revisions)
  466. VTS Operator Course Certificate‏‎ (4 revisions)
  467. Course‏‎ (4 revisions)
  468. Shutter‏‎ (4 revisions)
  469. Mid-Channel Mark (or Buoy)‏‎ (4 revisions)
  470. Synchronous Lights‏‎ (4 revisions)
  471. Landfall Light‏‎ (4 revisions)
  472. Channel Light‏‎ (4 revisions)
  473. Occasional Light‏‎ (4 revisions)
  474. Topmark (2)‏‎ (4 revisions)
  475. Diffuse Transmission‏‎ (4 revisions)
  476. Colour (G.B.)‏‎ (4 revisions)
  477. Trichromatic System‏‎ (4 revisions)
  478. Starboard Hand Mark (or Buoy)‏‎ (4 revisions)
  479. Luminous Range‏‎ (4 revisions)
  480. Flashing Light‏‎ (4 revisions)
  481. Aberration/de‏‎ (4 revisions)
  482. Focusing Device‏‎ (4 revisions)
  483. Rear Light‏‎ (4 revisions)
  484. Physical Photometer‏‎ (4 revisions)
  485. Alarm‏‎ (4 revisions)
  486. VTS Personnel‏‎ (4 revisions)
  487. Mesopic Vision‏‎ (4 revisions)
  488. Alternating Light‏‎ (4 revisions)
  489. Easily recognizable structure‏‎ (4 revisions)
  490. Landfall Mark (or Buoy)‏‎ (4 revisions)
  491. Leading Lights (G.B.)‏‎ (4 revisions)
  492. Revolving Screen‏‎ (4 revisions)
  493. Occultation‏‎ (4 revisions)
  494. Light reflection properties‏‎ (4 revisions)
  495. Diffuser‏‎ (4 revisions)
  496. Sector Angle‏‎ (4 revisions)
  497. Luminous beam‏‎ (4 revisions)
  498. Constant-failure-rate period‏‎ (4 revisions)
  499. Docking Signals‏‎ (4 revisions)
  500. Refractive Index‏‎ (4 revisions)

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