encoding  utf-8
survey R4

centreline
cs OSGB:ST
date 1967 10 13
#Source WIS survey book 2 pp53/4

data normal from to compass clino tape ignoreall
units tape feet
#calibrate compass +8.42
calibrate compass -0.22
#altered to allow for automatic mag dev correction

426  453  181.75  -31.5  15.2
453  454  016.75  -61.5  36.1
454  455  224.33  -54.25  11.2
455  456  -  down  7.8
456  457  228.16  -32.0  5.3
457  458  210.00  -35.33  2.9
458  459  -  up  2.6

endcentreline
endsurvey R4