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 



oil, , /■ O I II 



sincA, ' 97^ SSL^ 9:^ 2. West of 1. AA = A,-A.= V^ ^^ ^>3,:i% 7 



cos ^. .-?^/ ^f^^s- 3i„ ^^ . 93^^ ^9a c:>. ^j„ A^ '7:^^ 7S^^^Jl 



tan 0. V-^^-^ffS-r ,^3 ^^ ,^V^ O^^y^ ^^^ ^^ .^fS- /^^^^^ 



, , ^. 9V7V ^^'^ X A ■ A. ■ A. A. A. AX - ^<^^ -i'-^ 5^<^J~ 



tan 'Pi ' "^ ^ x<'--y»— QQg (J = sin 0; sin 02+ cos <p^ cos tpj cos ZiA 1 ^ 



M = Pn.W^,t.n,^,-.inrA, rn.AA --^'^/^>^-»^^^ rot A = M — . t>^y<,-'^S'3<^ 



sin AA 



N = cosc!.,tan(A,-sino!>,cosAA 7^> /^^^ • J J -^ cot B = . ., 1—1 



^2 ^' ^^ sinAA o / ■^ 



. cos (jS.sinAA , jV/f/j!'J'C . ,f'ff99ff^ A ^^5* ^.S' / f^ 7 S'^ 



sin d = ; sin A ' ^ ^ r , ^ ^ 



sin B 



_ cose/,, sin AA .^gj^yg^^^.^^ .7^<^ ^^ "^^^ g V^ -^9 /r- fy<^ 

 sin A ^'" J J /^ -uV v;y,V3<? 



K = (sin <^.- sin ^.^^ 9?S!^Cc3^/yo-'' ,^ = (d,3 sin d)/(l -cos d) -^/ "7/7 -/SSI 3 



L = (sin 4>. ---^y ^-^^^'^ '^^^ ^ G = (d - 3 sin d)/(i + cos d) — ^•r^>r<r-j' ^^^ 



Sd =-(f/4) (HK + GL) -/•> ^c^^l^^-^SS-/^ s = a (d + Sd) _i^^_£jfZ^?^^^I^meters 



d (radians) > J S^y^ ^ ^ ^ ^ ^7 6 3 ^^ f, 9^:0^ „.m. 



d + Sd (rad) ^^^-2.3^^^ ^^rS'r T = d/sin d X^ ^/<i? <^ ^ Cr<^ ^ ^ 



2A Z/'^" /^ ^^"S'^C 2B i^^° ^Jr -i'^" <i^ -=^<^ 



.;„ 9A — > ^^^^ $^ ^ ^ / sin2B 7"' 99999 99Jl~ 



U = (f/2) cos^,/,, sin 2A -3.0^^^V^3)i^^- ''v = (f/2) cos V. sin 2B ^A 9Faf/9^S-/^^ 



VT -/-^^ c:>^3 rr^^ ^/^ - ^ LIT - v?> ^ 9^v ^<^o y /<^ - ^ 



+ SA.^^r ^/■3<^C ^m^l ^/,^^'/ 



+ 180 o I .. + 180 o , " y 



2^g = 180° - A + SA a, -1 = a B^ = 180° + B + 58 



Line No. 8 (See Tables 1,2 - pages 65,66) 



^1-2 



119 



