DISTANCE COMPUTING FORM, ANDOYER-LAMBERT APPROXIMATION 



(No conversion to parametric latitudes) 



Clarke Spheroid 1866 a = 6,378,206.4 meters 



f/2 = 0.00169503765, f/4 = 0.000847518825 



1 radian = 206,264.8062 seconds 



O I II , O I II 



3 9 s9 a^. £/ s 1. (!P^/ha^ A. / j»/ vs^j2i7 <^ 



sincS. '^S7 ^^>^ ^9 2. West of 1. AA.A,-A= ? ^3 /^ - ^-^^ 



,„, ^, 77<^ J'a 7S6- 3in <^. ^^/^ :^/^^/ sin AX > y^S y^f99 

 . i' ? ^ ^ 99{^>^ -7^ ^ ^.i <^ ^^^/ 



tan 02 ' ' ^ ' "^ cos d = sin <;6j sin 02 + cos 0, cos 02 cos AA — ^ 



M = cos0,tan02-sin0,cosAA^^:^^^^:^?:^!^i:^^cotA=Jl_ V". /^^ ^ ^ V^<^ ^ 



sinAA 



IN = cos CD, tan 0, -sin 0, cos A A cot d = — : — j-r— — 



^^ ^' ^^ sin AA y yy 



. cos0.sinAA ,/j^^^^^^ . ^^^^/ j/CS'9^ fS S-f a 9. SO-/ 



sin d = . sin A ' ' ' /\ "^ "^ 



sin B 



in AA 



sin 



A 



K = (sin 01- sin 02) ^ H = (d + 3 sin d)/(l -cos d) " 



L = (sin 01 ■^^■^r.A.y A 6,^9 ^ 9 ^f G = (d - 3 sin d)/(l + cos j) - ' /-^-^ 9 f VS¥ 



5d =-(f/4) (HK + GL) ^' Ot>0 /7SC6, s = a (d + Sd) Zflid_A^L^^I_^^meters 



d (radians) .Jl^^lA^llA^l^ s V^f^- <J S^ ^ ^2^ 



d . 5d (rad)^!:i.^=^^_^::^I^i:^^ T = d/sin^d ^'^^^ ^5 ^^^ 



2A /^V vT^ /9-7^f 28 ^^«^ ^'^ ^9. ^:SrO 



.■n9A /-. ^^^ ^ ^^^-^-- sin2B^=^^^J^£ ^'^■^<^^ _^ 



U = (f/2) cos^0i sin 2A ^-^^^^ ^^^'^'^ V = (f/2) cos ^02 sin 2B - V- ^/ ^ /^ 



. sA - " '^ ^s.yj^ ,,B ^r_^ : — - -^-l' ^f-f-^ 



+ 180 o . " ^^ +180 o . " ^.<»V 



^1-2 



a^g = 180° - A + §A 02 -, = a g^ = 180° + B + SB 



Line No. 6 (See Tables 1,2 - pages 65,66) 



117 



