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TABLp is -,Tangents and. Externals to a 1° Curve. <br />Chord =100 ft. <br />Int. <br />Angle" <br />Tangent, <br />External <br />Int. <br />Int. <br />Angle <br />Tangent <br />External <br />Int. <br />Angle <br />Tangent' <br />External <br />85° <br />5250.3 <br />2041.7 <br />92° <br />5933.2 <br />2518.5 <br />99°-- <br />'6708:6 <br />3092.7 <br />10' <br />5265.6 <br />2052.1 <br />10' <br />5950.5 <br />2531.0 <br />10' <br />6729.4 <br />3107.7 <br />20 <br />5281.0 <br />2062.5 <br />20 <br />5967.9 <br />2543.5 <br />20 <br />6748.2 <br />3122.9 <br />30 <br />5296.4 <br />2073.0 <br />30 <br />5985.3 <br />2556.0 <br />30 <br />6768.1 <br />3138.1 <br />40 <br />5311:9 <br />2083.5 <br />-40 <br />6002.7 <br />2568.6 <br />40 <br />6788.1 <br />3153.3 <br />50 <br />5327.4 <br />2094.,1 <br />50 <br />6020;2 <br />2581.3 <br />50 <br />6808.2 <br />3168.7 <br />:80 <br />5343.0 <br />.2104.7 <br />93- <br />6037.8 <br />2594.0 <br />100 <br />'682S.3 <br />3184.1 <br />10 <br />5358.6 <br />2115.3 <br />10 <br />6055.4 <br />2606.8 <br />10 <br />6845.5 <br />3199.6 <br />.20 <br />5374.2 <br />2126.0 <br />20 <br />6073.1 <br />2619.7 <br />20 <br />6868.8 <br />3215.1 <br />30 <br />.5389.9 <br />2136.7 <br />30 <br />6090.8 <br />2632.6 <br />30 <br />6889.2 <br />3230.8 <br />40 <br />5405-.6 <br />2147.5 <br />40. <br />6108.6 <br />2645.5 <br />40 <br />6909.6 <br />3246.5 <br />50 <br />542l.A <br />2158.4 <br />50 <br />6126.4 <br />2658.5 <br />50 <br />6930..1 <br />3262.3 <br />87 <br />5437.2 <br />2169.2 <br />94 <br />6144.3 <br />2671:6 <br />101 <br />6950.6 <br />3278.1 <br />10 <br />5453.1 <br />2180.2 <br />10 <br />6162.6 <br />2684.7 <br />10 <br />6971.3, <br />3294.1 <br />20 <br />5469.0 <br />2191.1 <br />20 <br />6180.2 <br />2697.9 <br />20 <br />6992.0 <br />3310.1 <br />30 <br />5484.9 <br />2202.2 <br />30 <br />6198.3 <br />2711.2 <br />30 <br />7012.7 <br />3326.1 <br />40 <br />5500.9 <br />2213.2 <br />40 <br />6216.4 <br />2724.5 <br />40 <br />7033.6 <br />3342.3 <br />,,,.;50 <br />5517.0 <br />2224.3 <br />60 <br />6234.6 <br />2737.9 <br />50 <br />7054.5. <br />3358.5 <br />88 <br />5533.1 <br />2235.5 <br />95 <br />6252.8 <br />2751.3 <br />102 <br />7075.5 <br />3374.9 <br />10 <br />5549.2 <br />2246.7 <br />10 <br />6271.1 <br />2764.8 <br />10 <br />.7096.6 <br />3391.2 <br />20 <br />55,35.4 <br />2258.0 <br />20 <br />6289.4 <br />2778.3 <br />20 <br />7117.8 <br />3407.7 <br />30 <br />5581.6 <br />2269.3 <br />30 <br />6307.9 <br />2792.0 <br />30 <br />7139.0 <br />3424.3 <br />40 <br />5597.8 <br />!2280.6 <br />40 <br />6323.3 <br />2805.6 <br />40: <br />7160.3 <br />3440.9 <br />50 <br />5614.2 <br />2292.0 <br />50' <br />6344.8 <br />2819.4 <br />50' <br />7181.7 <br />3457.6 <br />-88' <br />5630.5 <br />2303.5 <br />96 <br />6363.4 <br />2833:2 <br />103 <br />7203.2 <br />3474.4 <br />.10 <br />5646.9 <br />2315.0 <br />10 <br />6382.1 <br />2847:0 <br />10 <br />7224.7 <br />3491.3 <br />20 <br />5663.4 <br />2326.6 <br />20 <br />6400.8 <br />2861.0 <br />20 <br />7246.3 <br />3508.2 <br />30 <br />5679.9 <br />2338.2 <br />30 <br />6419.5 <br />2875.0 <br />30 <br />7268.0 <br />3525.2 <br />40 <br />5696.4 <br />2349.8 <br />40 <br />6438.4 <br />2889.0 <br />40' <br />7289.8 <br />3542.4 <br />50. <br />5713.0 <br />2361.5 <br />50 <br />6457.3 <br />2903.1 <br />50 <br />7311.7 <br />3559.6 <br />90 <br />5729.7 <br />2373.3 <br />97 <br />6476.2 <br />2917..3 <br />10.4_ <br />7333.6 <br />3576.8 <br />10 <br />5746.3 <br />2385.1 <br />10 <br />6495.2 <br />2931.6 <br />10 <br />7355.6" <br />3594.2 <br />.20 <br />5763.1 <br />2397.0 <br />`'20 <br />6514.3 <br />2945.9 <br />20 <br />7377.8 <br />3611.7 <br />30 <br />5779.9 <br />2408.9 <br />30 <br />6533.4 <br />2960.3 <br />30 <br />7399.9 <br />3629.2 <br />40 <br />5796.7 <br />2420.9 <br />40 <br />6552.6 <br />2974.7 <br />40 <br />7422.2 <br />3646.8 <br />50 <br />5813.6 <br />2432.9 <br />50 <br />6571.9 <br />2989.2 <br />50 <br />7444.6 <br />3664.5 <br />91 <br />5830.5 <br />2444.9 <br />98 <br />6591.2 <br />3003.8 <br />105 <br />7467.0 <br />3682.3 <br />10 <br />5847.5 <br />2457.1 <br />10 <br />6610.6 <br />3018.4 <br />10 <br />7489.6 <br />3700.2 <br />20 <br />5864.,6 <br />2469.3 <br />20 <br />6630.1 <br />3033.1 <br />20 <br />7512.2 <br />3718.2 <br />30 <br />5881.7 <br />2481.5 <br />30 <br />6649.6 <br />3047.9 <br />30 <br />7534.9 <br />3736.2 <br />40 <br />5898.8 <br />2493.8 <br />40 <br />6669.2 <br />3062.8 <br />40 <br />7557.7 <br />3754.4 <br />50 <br />5916.0 <br />2506.1 <br />t5o <br />6688.8 <br />3077.7 <br />50.' <br />7580.5 <br />3772.6 <br />m <br />a <br />- Corrections to be Added (T=Tangent. 'E.=External.) <br />Int. <br />Angle. Curve 5°, 10° 15° 20° 25° 30° 1 35° 40° 45° 1 50° 55° I 600 65° 700 <br />85° T=:33 86 1.00 1.33 1.G8 2.02 2.36 2:70 3.05 3.40' 3.77 4.14 4.55 4.89 . <br />E =.128 259 .391 :524 .657 .790 .926 1.06 1.20 1.34 1.471.62 1.76 1.91 <br />11 °° ° °n 19 67 12 ed 3 32 1390 4-10 4-50 4.91 5.32 <br />- - - B=.14`0 I z VV .,Ou .t)W .100 .1 <br />. "v! 1.cG <br />95 T=.39 .79 1.19 1.55 2.00 2.40 2.80 3.20 3.61 4.02 4.49 '4.98 5.38 <br />E=;174 .350 .522 .706 .985 1.06 1.25 1.43 1.62 1.80 1.99 2:18 2.38 <br />100°" T=.43 .86 1.30 1.71 2.18 2.62 3.06 3.50 3.95 4.40-•4.88 5.37 5.85 <br />E=:200 .401 .604 .809 1.01 1.22 1.43 1.64 1.85 2.06 2.28 2.50 2.73 <br />105° T=.46 .94 1.42 11.90 12.38 2.87 3.34 3.84 4.35 4.84 5.35 5.87 6.40 <br />E=.230 .470 .700 .938 1.17 1.42 1.65 1.90 2.14 2.39 2.64 2.90 3.16 <br />TABLE I. - Tangents and Externals to a 1° Curve. <br />-Chord =100 ft.. <br />Int. <br />Angle. <br />Tangent, <br />External <br />I . <br />Int. <br />Angle <br />Tangent <br />g <br />External <br />Inti <br />Ang,e <br />Tangent <br />g <br />External <br />106° <br />7603.5 <br />3791.0 <br />111° <br />8336.7 <br />4380.1 <br />116° <br />9169.4 <br />5082.7 <br />10' <br />7626.6 <br />3809.4 <br />10' <br />8362.7 <br />4407. r, <br />10' <br />9199.1 <br />5107.9 <br />20 <br />7649.7 <br />3827.9 <br />20 <br />8388.9 <br />4429.2 <br />20 <br />9229.0 <br />5133.3 <br />30 <br />7672.9 <br />.3846.5 <br />30 <br />8415.1 <br />4450.9 <br />30 <br />9259.0 <br />5158.8 <br />40 <br />7696.3 <br />3865.2 <br />40 <br />8441.5 <br />4472.7 <br />40 <br />9289.2 <br />5184.5 <br />50 <br />7719.7 <br />3884.0 <br />50 <br />8468.0 <br />4494.6' <br />50 <br />9319.5 <br />5210.3 <br />107 <br />7743.2 <br />3902.9 <br />112 <br />8494.6 <br />4516.6 <br />117, <br />9349.9 <br />5236.2 <br />10 ' <br />7766:8 <br />3921.9 <br />10 <br />8521.3 <br />4538.8 <br />10 <br />9380.5 <br />5262.3 <br />20- <br />7790.5 <br />3940.9 <br />20 - <br />8548.1- <br />4561.1 <br />-20 <br />'9411.3 <br />5288.6 <br />30 <br />7814.3• <br />3960.1 <br />30 <br />8575.0. <br />4583.4 <br />30 <br />9442.2 <br />5315.0 <br />40 <br />7838.1 <br />3979.4 <br />40 <br />8602.1• <br />4606.0 <br />40 <br />9473.2 <br />5341.5 <br />r '50 <br />•7862.1 <br />3998.7• <br />50 <br />8629.3 <br />4628.6 <br />50 <br />9504.4.. <br />5368.2 <br />108 " <br />7886.2 <br />4018.2 <br />113 <br />8656.6 <br />4651.3 <br />118 <br />9535.7 <br />.5395.1 <br />10 <br />7910.4 <br />4037.8 <br />10 <br />8684.0 <br />4674.2 <br />. 10 <br />9567.2 <br />5422.1 <br />20, <br />7934:6 <br />4057.4. <br />20 <br />8711.5 <br />4697.2 <br />20 <br />9598.9 <br />5449.2 <br />;30 <br />7959.0 <br />4077.2 <br />30 <br />8739:2. <br />4720.3 <br />30 <br />.0630.7 <br />5476.5 <br />40', <br />7983.5 <br />4097.1 <br />40 <br />8767.0, <br />4743.6 <br />40 <br />9662.6 <br />5504.0 <br />50 <br />8008.0 <br />4117.0 <br />50 <br />8794.9 <br />4766.9 <br />50 <br />9694.7 <br />5531.7 <br />109 <br />8032.7 <br />4137.1 <br />114 <br />8822.9 <br />4790.4 <br />119 <br />9727.0 <br />5559.4. <br />-10 <br />8057.4 <br />4157.3 <br />10 <br />3851.0 <br />4814.1 <br />10 <br />9759.4 <br />5587.4 <br />20 . <br />8082.3 <br />4177.5 <br />20 <br />8879.3 <br />4837.8 <br />20 <br />9792.0 <br />5615.5 <br />30 <br />8107.3 <br />4197:9. <br />30 <br />8907.7 <br />4861.7 <br />30 <br />9824.8 <br />5643.8 <br />40 <br />8132.3 <br />4218:4 <br />40 <br />8936.3 <br />4885.7 <br />40 <br />9857.7 <br />5672.3 <br />50 <br />-8157.5 <br />4239.0 <br />50 <br />8965.0 <br />4909.9 <br />50 <br />19890.8 <br />5760.9 <br />110 <br />8182.8 <br />4250.7 <br />115 <br />8993.8 <br />4934.1 <br />120 <br />9924.0 <br />5729.7 <br />10 <br />8208.2 <br />4280.5 <br />10' <br />9022.7 <br />4958.6 <br />10 <br />9957.5 <br />5758.6 <br />;• 20_ <br />8233.7 <br />4301.4 <br />20 <br />9051.7 <br />4983.1 <br />20 <br />9991.0 <br />5787.7 <br />=30 <br />8259.3 <br />-4322.4 <br />30 <br />9080.9 <br />5007.8 <br />30 <br />10025.0 <br />5817.0 <br />40 <br />8285.0 <br />4343.6 <br />40 <br />9110.3 <br />5032.6 <br />40 <br />10059.0 <br />5846.5 <br />50 <br />8310.8 <br />4364.8 <br />50 <br />9139.8 <br />5057.6 <br />50 <br />10093.0 <br />5876.1 <br />Corrections to be Added (T =Tangent. E = External.) <br />Int. <br />Angle Curve 5° 10° 15° <br />20° <br />25° <br />30° <br />35° <br />40° <br />45° <br />50° <br />55° 60° <br />65° 700 <br />100° T=.43 .86 1.30 <br />1.74 <br />2.18 <br />2.62 <br />3.06 <br />3.50 <br />3.95 <br />4.40 <br />4.88 5.37 <br />5.85 6.34 <br />E=.200 .401 .604 <br />.800 <br />1.01 <br />1.22 <br />1.43 <br />1.64 <br />1.85 <br />2.06 <br />2.28 2.50 <br />2.73 2.96 <br />105° T=.46 .94 11.42 <br />1.90 <br />2.38 <br />2.87 <br />3.34 <br />3.84 <br />4.35 <br />4.84 <br />5.35 5.87 <br />6.40 6.93 <br />E =.230 .470 .700 <br />.938 <br />1.17 <br />1.42 <br />1.65 <br />1.90 <br />2.14 <br />2.39 <br />2.64 2.90 <br />3.16 3.41 <br />110° T=•50 1.03 1.55 <br />2.08 <br />2.60 <br />3.14 <br />3.66 <br />4.21 <br />4.76 <br />5.31 <br />5.86 6.43 <br />7.01 7.59 <br />' D6.260 .535 .808 <br />1.08 <br />1.36 <br />1.63 <br />1.91 <br />2.19 <br />2.49 <br />2.61 <br />3.05 3.35 <br />3.65 3.95 <br />115° .7 <br />' T=.54 1.13 ':9739 <br />2.29 <br />2.86 <br />3.45 <br />4.03 <br />4.63 <br />5.23 <br />5.83 <br />6.44 7.07 <br />7.70 8.35 <br />E =.307 .624 .939 <br />1.26 <br />1.57 <br />1.89 <br />2 * 211 <br />2.54 1 <br />2.87 1 <br />3.20 <br />3.53 3.88 <br />4.23 4.58 <br />I20° T=.61 1.25 1.89 <br />2.52 <br />3.16 <br />3.81 <br />4.44 <br />5.11 <br />5.78 <br />6.44 <br />7.11 7.80 <br />8.51 9.21 <br />E=.339 .720 1.08 <br />1.45 <br />1.82 <br />2.20 <br />2.56 <br />2.95 <br />3.33 <br />3.72 <br />4.10 4.50 <br />4.91 5.32 <br />