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VI TA$1d0-I. = Tangents and Externals to a' 10. Curve. <br />Choid=100 ft_; <br />Int. <br />Angle <br />Tangent <br />External <br />Int. <br />'Angle <br />Tangent <br />Externa] <br />Int.. <br />Angle <br />Tangent <br />External <br />B5° <br />5250.3 <br />2041.7 <br />92° <br />5933.2 <br />2518.5 <br />991 <br />6708.6 <br />3092.7 <br />10' <br />$265.6 <br />2052.1 <br />'10' <br />:5950.5 <br />2531.0 <br />.10' <br />6728.4 <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 />86 ' <br />5343.0 <br />2104.7 <br />93 <br />6037.8 <br />2594.0 <br />100 <br />6828.3 <br />3184.1 <br />10 <br />5358.6 <br />2115.3 <br />10 <br />6055.4 <br />2606.8 <br />:10. <br />6848.5 <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 />5421.4 <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 />1 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 />50 <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 />5565.4 <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 />3449.9 <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 />89 <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 />„' <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 />3508.21 <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 />96 <br />5729.7 <br />2373.3 <br />97 <br />6476.2 <br />. 2917.3 <br />104 - <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 />50 <br />6688.8 <br />3077.7 <br />50 <br />7580.5 <br />3772.6 <br />Corrections to be Added (T =Tangent. E. =External.) <br />Int. <br />Angle <br />Curve 5° <br />10°.'. <br />15° 20°_ 25° <br />30° 35° <br />40° <br />456 <br />50° <br />55° 60° 65° 70° <br />1. 850 , <br />,',T=.33 <br />.66 <br />1.00 1.33 1.68 <br />2.02 2.36 <br />2.70 <br />3.05 <br />3.40 <br />3.77 4.14 4.55 4.89 <br />10' <br />E=.128 <br />.259 <br />.391 .524 .657 <br />.790 ..926 <br />1.06' <br />1.20 <br />1.34 <br />1.47 1.62 1.76 1.91 <br />mo <br />T=.36 <br />' <br />.72 <br />1.09 1.45 1.83 <br />2.20 2.57 <br />2.94 <br />3.32 <br />3.70 <br />4.10 4.50 4.91 5.32 <br />30, <br />E=.149 <br />.299 <br />.450 .603 .758 <br />.910 1.07' <br />1.22 <br />1.38" <br />1.54 <br />1.70 1.87 2.03 2.20 <br />95° <br />T=.39 <br />'.79 <br />2.00 <br />2.40 2.80 <br />3.20 <br />3.61 <br />4.02 <br />4.49 4.98 5.38 5.83 <br />50:. <br />E=.174 <br />.350 <br />.985 <br />1.06 1.25 <br />1.43' <br />1.62 <br />1:80 <br />1.99 2.18 2.38 2.58 <br />100o <br />T=.43 <br />.86 <br />2.18 <br />2.62 3.06 <br />3.50 <br />3.95 <br />4.40 <br />4.88 5.37 5.85 6.34 <br />10 <br />E=.200 <br />..401 <br />1.01 <br />t42 <br />1.22 1.43 <br />1.64 <br />1.85 <br />2.06 <br />2.28 2.50 2.73 2.96 <br />to <br />T=.46 <br />.94 <br />2.35 <br />2.87 3.34 <br />3.84 <br />4.35 <br />4.84 <br />5.35 5.87 6.40 6.93 <br />30 <br />E=.230 <br />.470 <br />1.17 11.42 <br />1.65 1 <br />1.90 <br />2.14 <br />2.39 <br />2.64 2.90 3.16 3.41 <br />TABLE I. -7 Tangents and Externals .to a 1° Curve.. V3:1 <br />:,4 Chord=100 ft. <br />IntInt. <br />Angle' <br />Tangent <br />External <br />-Angle <br />Tangent <br />External <br />Int. <br />Angle <br />Tangent <br />External <br />1064!1..+7603.5' <br />1 50° <br />3791.0 <br />111° <br />8336.7 <br />4386.1 <br />116° <br />9169.4 <br />5082.7. <br />10' <br />`7626.6, <br />3809.4 <br />10'- <br />8362.7 <br />4407.6 <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 />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 />•$584.0 <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 />9630.7 <br />5476.5 <br />-40 <br />7983.5='4097.3 <br />1.82 <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 />8057.4,4157.3 <br />:- 10 <br />8851:0 <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 />9890.8 <br />57d0.9 <br />110 <br />8182.8.4259:7 <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 />5768.6 <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''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. <br />Curve 5° <br />'10°- <br />IS- 1 <br />20° 1 <br />25° <br />30° <br />35° <br />40° <br />459 <br />1 50° <br />55° <br />60° <br />65° <br />70- <br />100 _ <br />T=.43 <br />.86 <br />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 <br />5.37 <br />5.85 <br />6.3 4 <br />E=.200 <br />.401 <br />.604 <br />.809 <br />1.01 <br />1.22 <br />1.43 <br />1.64 <br />1.85 <br />2.06 <br />2.28 <br />2.50 <br />2.73 <br />2.96 <br />105°• <br />T=.46 <br />.94 <br />1.42 <br />1.90 <br />2.38 <br />2.87 <br />3.34 <br />3.84 <br />4.35 <br />4.84 <br />5.35 <br />5.87 <br />6.40 <br />6.93 <br />E=.230 <br />.470 <br />.700 <br />.938 <br />1.17 <br />1.42 <br />1.65 <br />1.90 <br />2.14 <br />2.39 <br />2.64 <br />2.90 <br />3.16 <br />3.41 <br />110° <br />T=.50 <br />1.03 <br />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 <br />6.43 <br />7.O1 <br />7.59 <br />E=.260 <br />.535 <br />.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 <br />3.35 <br />3.65 <br />3.95 <br />115° <br />T=.54 <br />1.13 <br />1.70 <br />2.29 <br />2.86 <br />3.45 <br />4.03 <br />4.63 <br />5.23 <br />5.83 <br />6.44 <br />7.07 <br />7.70 <br />8.35 <br />, <br />E =.307 <br />.624 <br />.939 <br />1.26 <br />1.57 <br />1.89 <br />2.21 <br />2.54 <br />2.87 <br />3.20 <br />3.53 <br />3.88 <br />4.23 <br />4.58 <br />120° <br />T=,61 <br />1.25 <br />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 <br />7.80 <br />8.51 <br />9.21 <br />E=.339 <br />.720 <br />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 <br />4.8500184'9111 <br />5.32 <br />