Home Index Site Map Up: Paper Navigation
Up: Paper

First: Pocket Hand-Book of Electro-Glazed Luxfer Prisms - Page 1 Last: Pocket Hand-Book of Electro-Glazed Luxfer Prisms - Page 287 Prev: Pocket Hand-Book of Electro-Glazed Luxfer Prisms - Page 187 Next: Pocket Hand-Book of Electro-Glazed Luxfer Prisms - Page 189 Navigation
Handbook: 188 of 287
·1 ·29 ·57 ·85 ·113 ·141 ·169 ·202 ·232 ·260
·2 ·30 ·58 ·86 ·114 ·142 ·170 ·205 ·233 ·261
·3 ·31 ·59 ·87 ·115 ·143 ·171 ·206 ·234 ·262
·4 ·32 ·60 ·88 ·116 ·144 ·172 ·207 ·235 ·263
§5 ·33 ·61 ·89 ·117 ·145 ·173 ·208 §236 ·264
·6 ·34 ·62 ·90 ·118 ·146 ·174 ·209 ·237 ·265
·7 ·35 ·63 ·91 ·119 ·147 ·175 ·210 ·238 §266
·8 ·36 ·64 ·92 ·120 ·148 ·176 ·211 ·239 ·267
·9 ·37 ·65 ·93 ·121 ·149 ·177 ·212 ·240 ·268
·10 ·38 ·66 ·94 ·122 ·150  ... ·213 ·241 ·269
§11 ·39 ·67 ·95 ·123 ·151 §186 ·214 ·242 ·270
·12 ·40 ·68 ·96 ·124 ·152 ·187 ·215 ·243 §271
·13 ·41 ·69 ·97 ·125 ·153 ·188 ·216 ·244 ·272
·14 ·42 ·70 ·98 ·126 ·154 ·189 ·217 ·245 ·273
§15 ·43 ·71 ·99 ·127 ·155 ·190 ·218 §246 ·274
·16 ·44 ·72 ·100 ·128 ·156 ·191 ·219 ·247 ·275
·17 ·45 ·73 ·101 ·129 ·157 ·192 ·220 ·248 ·276
§18 ·46 ·74 ·102 ·130 ·158 ·193 ·221 ·249 ·277
·19 ·47 ·75 ·103 ·131 ·159 ·194 ·222 ·250 ·278
·20 ·48 ·76 §104 ·132 ·160 ·195 ·223 ·251 ·279
§21 ·49 ·77 ·105 ·133 ·161 ·196 ·224 ·252 §280
·22 ·50 ·78 ·106 ·134 ·162 ·197 ·225 ·253 ·281
·23 ·51 §79 ·107 ·135 ·163 §198 ·226 ·254 ·282
·24 ·52 ·80 ·108 ·136 ·164 ·199 ·227 ·255 §283
·25 ·53 ·81 ·109 ·137 ·165 ·200 ·228 ·256 ·284
·26 ·54 ·82 ·110 ·138 ·166 ·201 ·229 ·257 ·285
·27 ·55 ·83 ·111 ·139 ·167 ·202 ·230 ·258 ·286
§28 ·56 ·84 ·112 ·140 ·168 ·203 ·231 ·259 ·287
 
TABLE OF ZENITH-TANGENTS

Height of Opposite Building Above Bottom of Prism Plate, Feet.
* 40 45 50 55 60 65 70 80 90 100 125 150 175 200
3 .07 .06 .06 .05 .05 .05 .04 .04 .03 .03 .02 .02 .02 .01
4 .10 .09 .08 .07 .07 .06 .06 .05 .04 .04 .03 .03 .02 .02
5 .12 .11 .10 .09 .08 .08 .07 .06 .06 .05 .04 .03 .03 .02
6 .15 .13 .12 .11 .10 .09 .09 .07 .07 .06 .05 .04 .03 .03
8 .20 .18 .16 .15 .13 .12 .11 .10 .09 .08 .06 .05 .05 .04
10 .25 .22 .20 .18 .17 .15 .14 .13 .11 .10 .08 .07 .06 .05
12 .30 .27 .24 .22 .20 .18 .17 .15 .13 .12 .10 .08 .07 .06
15 .37 .33 .30 .27 .25 .23 .21 .19 .17 .15 .12 .10 .09 .07
17 .43 .38 .34 .31 .28 .26 .24 .22 .19 .17 .14 .11 .10 .08
20 .50 .45 .40 .36 .33 .31 .29 .25 .22 .20 .16 .13 .11 .10
25 .62 .56 .50 .45 .42 .38 .36 .31 .28 .25 .20 .17 .14 .12
30 .75 .67 .60 .54 .50 .46 .43 .38 .33 .30 .24 .20 .17 .15
35 .88 .78 .70 .64 .58 .54 .50 .44 .39 .35 .28 .23 .20 .17
40 1.00 .89 .80 .73 .67 .62 .57 .50 .45 .40 .32 .27 .23 .20
45 1.12 1.00 .90 .82 .75 .69 .64 .56 .50 .45 .36 .30 .27 .22
50 1.25 1.11 1.00 .91 .83 .77 .71 .63 .56 .50 .40 .33 .29 .25
55 1.37 1.22 1.10 1.00 .92 .85 .79 .69 .61 .55 .44 .37 .31 .27
60 1.50 1.33 1.20 1.09 1.00 .92 .86 .75 .67 .60 .48 .40 .34 .30
65 1.62 1.45 1.30 1.18 1.08 1.00 .92 .81 .72 .65 .52 .43 .37 .32
70 1.75 1.56 1.40 1.27 1.17 1.08 1.00 .88 .78 .70 .56 .47 .40 .35
80 2.00 1.78 1.60 1.45 1.33 1.23 1.14 1.00 .89 .80 .64 .53 .46 .40
90 2.25 2.00 1.80 1.64 1.50 1.38 1.29 1.13 1.00 .90 .72 .60 .51 .45
100 2.50 2.22 2.00 1.82 1.67 1.54 1.43 1.25 1.11 1.00 .80 .67 .57 .50
125 3.12 2.78 2.50 2.27 2.08 1.92 1.79 1.56 1.39 1.25 1.00 .83 .71 .62
150 3.75 3.33 3.00 2.73 2.50 2.31 2.14 1.88 1.67 1.50 1.20 1.00 .86 .75
175 4.37 3.89 3.50 3.18 2.92 2.69 2.50 2.19 1.95 1.75 1.40 1.33 1.00 .87
200 5.00 4.45 4.00 3.64 3.33 3.08 2.86 2.50 2.22 2.00 1.60 1.50 1.33 1.00
* Distance from Prism Plate to Face of Opposite Building, Feet.
  Pocket Hand-Book of Electro-Glazed Luxfer Prisms - Page 188