Figure 15 - San^ile Calculation Sheet for Determining Ratio 



of R /R 



2.2 



Equation [10] L^ = ^ f^^ 



Assume 



h^ = 1.33 and R^/r = 1.05 



Then L — 18.0 in. (Midway between curves) 



Pfull No. 1 - Location I (See Figure 12a) 



25 deg Scale 



Inner curve covers arc length of 16.6 in. 

 Outer curve covers arc length of 19.4 in. 



A = 



a + "c 



2 - «g (see Figure 4) 



A = " ^^ ~ ^Q - (_ 54) = 42 mils = 0.042 in. 



_A_ ^ 0.042 

 ha ~ 1.33 



= 0.032 



1.04 (See Figure 5) 



From Figure 10 h =1.35 

 a 



Assume 



\M 



1.04 



L = 18.0" A = 0.042 

 c 



0.042 



0.031 



ha 1.35 



R^/R = 1.04 (Agrees with assumed value) 



34 



