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Old 30th Dec 2014, 15:24
  #11 (permalink)  
flyme273
 
Join Date: Jul 2007
Location: Netherlands
Posts: 117
CH is 120. Deviation is +4. Variation is 5 W. Wind correction angle is 8 Right. TT is: (choose below)
111
127
113
129

120+4-5-8=111 (T) answer a

CH is 224. Deviation is -3. Variation is 4 W. TH is:
217
223
225
231

224-3-4 = 217 (T) = answer a

CH is 317. Deviation is +3. Variation is 5 W. Wind correction angle is 10 right. TT is:
309
305
329
325

317-3-5-10 = 305 (T) answer b

CH is 098. Deviation is +2. Variation is -8 and drift is 5 Left. TT is:
087
093
097
109

098-2+8+5 = 087 (T) = answer a

the only problem is I would normally have applied the deviation in the opposite sense . . . .

----------------
got all my books out and rechecked answers: setting it out in the normal way:-

103 T +4+5+8 = 120 C
223 T -3+4 = 224 C
299 T +3+5+10 = 317 C
109 T +2-8-5 = 098 C

only question 2 provides the correct answer.

Last edited by flyme273; 31st Dec 2014 at 08:48. Reason: correction
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