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IV TABLE I. Tangents and Externals too -a 1° Curve. <br />Chord= 100 ft. <br />Angle <br />Tangent <br />External <br />,Angle <br />Tangeut <br />External <br />. Agje <br />Tangent <br />External <br />43° <br />2257.0 <br />428.5; <br />50° <br />2671.8 <br />592.3. <br />57° <br />3110.9 <br />190.1 <br />10' <br />2266.61 <br />432.0 <br />10' <br />2681.9 <br />59G.61 <br />10' <br />3121.7 <br />795.2 <br />20 <br />2276.2. <br />435.6 <br />20 <br />2692.1 <br />600.9', <br />20 <br />3132,6 <br />800.4 <br />30 <br />2285.9 <br />439.2 <br />30 <br />2702.3 <br />605,3' <br />30 <br />3143.4 <br />805.6 <br />40 <br />2295.6 <br />442.8 <br />'40 <br />2712.5 <br />609.6; <br />40 <br />3154.2 <br />810.9 <br />50 <br />2305.2 <br />_446.4 <br />50 <br />2722.7 <br />614.0 <br />50 <br />3165.1 <br />816.1 <br />44 <br />2314.9 <br />450.0 <br />51' <br />2732.9 <br />618.4 <br />58 <br />3176.0 <br />821.4 <br />10 <br />2324.6 <br />453.6 <br />10 <br />2743.1 <br />622.8 <br />10 <br />3186.9 <br />82G.7 <br />20 <br />2334.3 <br />457.3 <br />20 <br />2753.4 <br />627.2 <br />20 <br />3197.8 <br />532.0 <br />30 <br />2344.1 <br />.461.0 <br />30 <br />2763.7 <br />631.7 <br />30 <br />3208.8 <br />537.3 <br />40 <br />2353.8 <br />464.6. <br />.40 <br />2773.9 <br />636.2 <br />40 <br />3219.7 <br />842.7 <br />50 <br />2363.15 <br />468.4 <br />,50. <br />2754.2 <br />G40.7 <br />50 <br />_3230.7 <br />8.15.1 <br />4b <br />2373.3 <br />472.1 <br />52 <br />'2794.5 <br />645.2 <br />59 . <br />3241.7 <br />853.5 <br />10 <br />2383.1. <br />475.8 <br />10 <br />2804..9 <br />649.7 <br />10 <br />3252.7 <br />858.9 <br />20 <br />2392.8 <br />479.6 <br />20 <br />2815.2 <br />654.3 <br />20 <br />3203.7 <br />SCA.3 <br />30 <br />2402.6 <br />483.4 <br />30 <br />2825.6 <br />658.8 <br />30 <br />3274.5 <br />569.6 <br />40 <br />2412.4 <br />487.2 <br />40 <br />2835:9 <br />G63.4 <br />40 <br />3285.8 <br />575.3 <br />50 <br />2422.3 <br />491.0 <br />50 <br />284.6.3 <br />668.0 <br />50 <br />3296.0 <br />880.8 <br />46 <br />2432.1 <br />494.8 <br />53 <br />2856.7 <br />672.7 <br />CO <br />3308.0 <br />8SG.4 <br />10 <br />2441.9 <br />498.7 <br />10 <br />2867.1 <br />677.3 <br />10 <br />3319.1 <br />892.0 <br />20 <br />2451:8, <br />502.5 <br />20 <br />2877.5 <br />682.0 <br />20 <br />3330.3 <br />897.5 <br />30 <br />24611.7 <br />506.4 <br />30 <br />2888.0 <br />686.7 <br />.30 <br />3341.4 <br />903.2 <br />40 <br />2,171.5 <br />510.3 <br />40 <br />2898.4 <br />691.4 <br />40 <br />3352.6 <br />90S.8 <br />.50 <br />2481.4 <br />'514.3 <br />50 <br />2008.9 <br />696.1 <br />.50 <br />3363.8 <br />914.5 <br />47 <br />2491.3, <br />518.2 <br />54 <br />2919.4 <br />700.9 <br />61 <br />3375:0 <br />920.2 <br />10 <br />2501.2 <br />522.2 <br />10 <br />2929.9 <br />705.7 <br />10 <br />3386.3 <br />925.9 <br />20 <br />2511.2 <br />;526.1 <br />20 <br />2940.4 <br />710.5 <br />20 <br />3397,5 <br />931.6 <br />30 <br />2521.11 <br />530.1 <br />30 <br />2951.0 <br />715.3 <br />30, <br />340S,8 <br />937.3 <br />40 <br />2531.1 <br />534.2 <br />40 <br />2961.5 <br />720.1 <br />40 <br />3420:1 <br />943.1 <br />50 <br />2541•:0: <br />538.2 <br />50 <br />2972.1 <br />725.0 <br />50 <br />3431.4 <br />948.9 <br />48 <br />25.;1'.0 <br />542.2 <br />55 <br />2982.7 <br />729.9 <br />62 <br />3442.7 <br />954.8 <br />10 <br />2561.0 <br />546.3 <br />10 <br />2993.3 <br />734.3 <br />10 <br />3454.1 <br />960.6 <br />- 20 <br />2571.0 <br />550.4 <br />20 <br />3003:9 <br />739.7 <br />20 <br />3465.4 <br />966.5 <br />30 <br />2.581.0 <br />554.5 <br />30 <br />3014.5 <br />744.6 <br />.30 <br />347G.8 <br />972.4 <br />40 <br />2591:0 <br />558.6 <br />40 <br />3025.2 <br />749.6 <br />40 <br />3488.3 <br />978.3 <br />50 <br />2601.1 <br />562.8 <br />50 <br />3035.8 <br />754.6 <br />50 <br />3499.7 <br />984.3 <br />,49 <br />2611.2 <br />566.9 <br />56 <br />304 G.5 <br />759.6 <br />63. <br />3511.1 <br />990.2 <br />10 ' <br />2621.2 <br />571.1 <br />10 <br />3057.2 <br />764.6 <br />10 <br />3522.6 <br />996.2 <br />,20 <br />2631.3 <br />575.3 <br />20 <br />3067.9 <br />769.7 <br />.20 <br />3534.1 <br />1002.3 <br />30 <br />2641.4 <br />579.5 <br />.30 <br />307S.7 <br />774.7 <br />30 <br />3545.6 <br />1009.3 <br />40 <br />2651.5 <br />583.8 <br />40 <br />3089.4 <br />770.8 <br />40' <br />3557.2 <br />1014.4 <br />50 <br />2661.6 <br />588.0 <br />50 <br />3100.2 <br />784.9 <br />50 <br />3568.7 <br />1020.5 <br />Corrections to'. be Added (T=Tangent. E=External,) <br />Int. <br />Angle <br />Cure 5° <br />10° <br />IS° <br />20° <br />25° <br />36° <br />35° <br />40° <br />49° <br />50° <br />55° <br />71° <br />5° <br />70° <br />40° <br />T=.13 <br />26 <br />40 <br />53 <br />.67 <br />.80 <br />.93 <br />.106 11.20 <br />1101 <br />1.34 <br />1.49 <br />20 <br />9 <br />1.94 <br />20 <br />E=.023 <br />.046 <br />.670 <br />.093 <br />.117 <br />.141 <br />.172 <br />203 <br />.234 <br />.265 <br />.277315 <br />30 <br />4681.3 <br />.341 <br />45° <br />T=.15 <br />.30 <br />.44 <br />.60 <br />.76 <br />.91 <br />1.06 <br />1.21 <br />1.37 <br />1.52 <br />1.70 <br />50 <br />04 <br />2.21 <br />50 <br />E =.030 <br />.060 <br />.093 <br />.110 <br />.153 <br />.184 <br />.216 <br />.254 <br />.289 <br />.325 <br />.35111 <br />10 <br />k2.55 <br />•.445 <br />50° <br />T=.17 <br />.34 <br />.51 <br />.68 <br />.85 <br />1.02 <br />1.19 <br />1.36 <br />1.54 <br />1.72 <br />1.91 <br />20 <br />29 <br />2.48 <br />30 <br />B=.037 <br />.075 <br />.116 <br />'.151 <br />.189 <br />.227 <br />266 <br />.305 <br />.845 <br />.384 <br />.425508 <br />40 <br />4214.0 <br />.550 <br />55o <br />T=.19 <br />.33 <br />.b7 <br />.76 <br />.95. <br />1.14 <br />1.32' <br />1.b2 <br />172 <br />1.02 <br />2.14 <br />66 <br />56 <br />2.77E=.016 <br />73 <br />4239.7 <br />A93 <br />.142 <br />.188 <br />.236 <br />.283 <br />,332 <br />8.81 <br />.420 <br />.479 <br />,530641 <br />10 <br />4822.0 <br />.7700 <br />60° <br />T:: 21 <br />.42 <br />3 <br />'16 <br />4265.6 <br />1.05 <br />1.27 <br />1.49 <br />1.71 <br />1.94 <br />2.17 <br />2.38 <br />2.60 <br />2.83 <br />3.07 <br />30 <br />E056 <br />.112 <br />.IGS <br />:225'1:'2M <br />.225 <br />.233 <br />.340 <br />.308 <br />.457 <br />.516 <br />.575 <br />.636 <br />.697 <br />.774 <br />.8a1 <br />65° <br />T=.23 <br />.46 <br />69 <br />93 <br />1.16 <br />1.40 <br />1.64 <br />1.88 <br />2.13 <br />2.38 <br />2.63 <br />2.88 <br />3.13 <br />3 9. <br />10 <br />E =.067 <br />.135 <br />.204 <br />273 <br />.343 <br />,412 <br />.483 <br />.554 <br />.625 <br />.697 <br />.711 <br />.845 <br />.922 <br />L0� <br />TABLE' 1. - Tangents and Externals to a 1° Curve. • V <br />Chord =100 ft. <br />t. <br />Angle <br />Tangent <br />External <br />A Int. <br />Tangent <br />External <br />Angle <br />Tangent <br />External <br />5D° <br />3530.3 <br />1026.6 <br />71° <br />40S6.9 <br />1308.2 <br />780 <br />4639.8 <br />1643.0 <br />10' <br />3591.9 <br />1032.8 <br />10' <br />4099.5 <br />1315.6 <br />1101 <br />4653.6 <br />1651.7 <br />20 <br />3G03.5 <br />1039.0 <br />20 <br />4112.1 <br />1322.0 <br />20 <br />4667.4 <br />1660.5 <br />30 <br />3615.1 <br />1045.2 <br />30 <br />4124.8 <br />1330.3 <br />30 <br />4681.3 <br />1669.2 <br />40 <br />3626.8 <br />1051.4 <br />40 <br />4137.4 <br />1337.7 <br />40 <br />4695.2 <br />1678.1 <br />50 <br />3638.5 <br />1057.7 <br />50 <br />4150.1 <br />1345.1 <br />50 <br />4709.2 <br />1686.9 <br />65 <br />3650.2 <br />1063.9 <br />72 <br />4162:8 <br />1352.6 <br />79 <br />4723.2 <br />1695.8 <br />10 <br />3661.9 <br />1070.2 <br />10 <br />4175.6 <br />1360.1 <br />10 <br />4737.2 <br />1704.7 <br />20 <br />3673.7 <br />1076.6 <br />20 <br />4188.5 <br />1367.6 <br />20 <br />4751.2 <br />1713.7 <br />30 <br />3685.4 <br />1082.9 <br />30 <br />4201.2 <br />1375.2 <br />30 <br />4765.3 <br />1722.7 <br />40 <br />3697.2 <br />1089.3 <br />40 <br />4214.0 <br />1362.8 <br />40 <br />4779.4 <br />1731.7 <br />50 <br />3709.0 <br />1095.7 <br />50 <br />4226.8 <br />1390.4 <br />50 <br />4793,6 <br />1740.8 <br />66 <br />3720.9 <br />1102.2 <br />73 <br />4239.7 <br />139S.0 <br />80 <br />4807.7 <br />1749.9 <br />10 <br />3732.7 <br />1108.6 <br />10 <br />4252.6 <br />1405.7 <br />10 <br />4822.0 <br />1759.0 <br />20 <br />3744.6 <br />1115.1 <br />20 <br />4265.6 <br />1413.5 <br />20 <br />4836.2 <br />1765.2 <br />30 <br />3756.5 <br />1121.7 <br />30 <br />4278.5 <br />1421,2 <br />30 <br />1850.5 <br />1777.4 <br />40 <br />3768.5 <br />1128.2 <br />40 <br />4291.5 <br />1420.0 <br />40 <br />4864.8 <br />1786.7 <br />50 <br />3780.4 <br />1134.8 <br />50 <br />4301.6 <br />1136,3 <br />50 <br />4879.2 <br />1796.0 <br />67 <br />3792.4 <br />1141.4- <br />74 <br />4317.6 <br />1444.6 <br />81 <br />4593.6 <br />1805.3 <br />10 <br />3804.4 <br />1148.0 <br />10 <br />4330.7 <br />1452.5 <br />10 <br />4908.0 <br />1814.7 <br />20 <br />3816.4 <br />1154.7 <br />20 <br />4343.8 <br />1400.4 <br />20 <br />4922.5 <br />1824.1 <br />30 <br />3828.4 <br />1161.3 <br />30 <br />4356.9 <br />1468.4 <br />30 <br />4937.0 <br />18333.0 <br />40 <br />3840.5 <br />1168.1 <br />40 <br />4370.1 <br />147G.4 <br />40 <br />4951.5 <br />1843.1 <br />50 <br />3852.6 <br />1174.8 <br />50 <br />4353.3 <br />1484.4 <br />50 <br />4966.1 <br />1852.6 <br />68 <br />3SCA.7 <br />1181-.6 <br />75 <br />439G.5 <br />1492.4 <br />82 <br />4980.7 <br />1862.2 <br />10 <br />3876.8 <br />1188.4 <br />10 <br />4409.8 <br />1500.5 <br />10 <br />4995.4 <br />1871.8 <br />20 <br />3£89.0 <br />1195.2 <br />20 <br />4423.1 <br />1508.6 <br />20 <br />5010.0 <br />1SS1.5 <br />30 <br />3901.2 <br />1202.0 <br />30 <br />4436.4 <br />1516.7 <br />30 <br />5024.8 <br />1891.2 <br />40 <br />3913.4 <br />1208.9 <br />40 <br />4449.7 <br />1524.9 <br />40 <br />5039.5 <br />1900.9 <br />50 <br />3925.6 <br />1215.8 <br />'50 <br />4463.1 <br />1533.1 <br />50 <br />5054.3 <br />1910.7 <br />69 <br />3937.9 <br />1222.7 <br />76 <br />4476.5 <br />1541.4 <br />S3 <br />5069.2 <br />1920:5 <br />10• <br />3950.2 <br />1229.7 <br />10 <br />4489.9 <br />1549.7 <br />10 <br />5084.0. <br />1930.4 <br />20. <br />3962.5 <br />1236.7 <br />20 <br />4503.4 <br />1558.0 <br />20 <br />5099.0 <br />1940.3 <br />30 <br />3974.8 <br />1243.7 <br />30 <br />4516.9 <br />1566.3 <br />30 <br />5113.9 <br />1050.3 <br />40 <br />3987.2 <br />1250.8 <br />40 <br />4530.4 <br />1574.7 <br />40 <br />5128:9 <br />1060.2 <br />50 <br />3999.5 <br />1257.9 <br />50 <br />4514'.0 <br />1553.1 <br />50 <br />5143.9 <br />1970.3 <br />70 <br />4011.9 <br />1265.0 <br />77 <br />4557.6 <br />1591.0• <br />84 <br />5159.0 <br />1980.4 <br />10 <br />4024.4 <br />1272.1 <br />10 <br />4571.2 <br />1600.1 <br />.10 . <br />5174.1 <br />1900.5 <br />20 <br />4036.3 <br />1279.3 <br />20 <br />4584.5 <br />1608.6 <br />20 <br />5159.3 <br />2000.6 <br />30 <br />4049.3 <br />1286.5 <br />30 <br />4598.5- <br />1617.1 <br />30 <br />5204.4 <br />2010.8 <br />40 <br />4061.8 <br />1293.6 <br />40 <br />4612.2 <br />1025.7 <br />40 <br />5219.7 <br />2021.1 <br />50 <br />4074.4 <br />1300.9 <br />50 <br />46126.0 <br />1634.4 <br />50 <br />5234.9 <br />'2031.4 <br />Corrections to be Added (T=Tangent. E=External.) <br />Angle <br />Carve 5° <br />10° <br />15° <br />20° 1 <br />25° 1 30° <br />35° <br />40° 1 <br />45° <br />5D° <br />55° <br />60°_ <br />65° <br />70° <br />W <br />T=.21 <br />.42 <br />.63 <br />.84 <br />1.05 1.27 <br />1.40 <br />1.71 <br />1'.94 <br />2.17 <br />2,38 <br />2,60 <br />2,83 <br />3.07 <br />E=.056 <br />.112 <br />.168 <br />.225 <br />,283 .340 <br />.398 <br />.457 <br />.516 <br />.575 <br />.636 <br />.697 <br />.714 <br />,851 <br />651 <br />T=.23 <br />.46 <br />.69 <br />.93 <br />1.16 1.40 <br />1.64 <br />1.88 <br />2.13 <br />2.38 <br />2.63 <br />2.88 <br />3.13 <br />3.39 <br />E=.007 <br />.135 <br />.205 <br />.273 <br />.3.13 .412 <br />.483 <br />.554 <br />.625 <br />.697 <br />.711 <br />.845 <br />.922 <br />1.01 <br />70° <br />T=.25 <br />.51 <br />.76 <br />1.02 <br />1.23 1.54 <br />1.80 <br />2.06 <br />2.33 <br />2.60 <br />2.88 <br />3.16 <br />3.44 <br />3.72 <br />E=.080 <br />.159 <br />.2.10 <br />.321 <br />.403 .485 <br />.568 <br />.652 <br />.735 <br />.819 <br />.006 <br />.094 <br />1.03 <br />1.17 <br />75° <br />T=.27 <br />.56 <br />.83 <br />1.12 <br />1.40 1.69 <br />1.98 <br />2.27 <br />2.57 <br />2.87 <br />3.16 <br />3.47 <br />3.78 <br />4.09 <br />E=.095 <br />.182 <br />.286 <br />.383 <br />ASO .578 <br />.678 <br />.777 <br />.817 <br />.077 <br />.1.07 <br />1.18 <br />1.29 <br />1,39 <br />80° <br />T=.30 <br />61 <br />.91 <br />tat <br />1.53 1.84 <br />2.15 <br />2.78 <br />3.10 <br />3.44 <br />3.78 <br />4.12 <br />4.46 <br />E=:110 <br />.220 <br />.332 <br />.445 <br />.558 .6171 <br />.787 <br />1.0'2 <br />1.13 <br />1.25 <br />1.38 <br />1,50 <br />1.62 <br />B5o <br />T=.33 <br />.66 <br />1.00 <br />1.33 <br />1.69 2.02 <br />2.36 <br />L2.70 <br />3.05 <br />3.40 <br />3.77 <br />4.14 <br />4.55 <br />9.89 <br />E=.128 <br />:25fl <br />.391 <br />.524 <br />.657 ."0 <br />.926 <br />1.20 <br />1.34 <br />1 1.47 <br />1.62 <br />1.76 <br />1.91 <br />A <br />