encoding  utf-8
survey R9

centreline
cs OSGB:ST
date 1970 02 27
#Source WIS survey book 2 pp65/6

data normal from to compass clino tape ignoreall
units tape feet
#calibrate compass +8.0
calibrate compass -0.42
#altered to allow for automatic mag dev correction

488  499  322.16  13.25  5.0
499  500  138.16  -4.66  17.9
500  501  165.16  -16.16  40.3
501  502  159.00  -8.66  11.8
502  503  226.16  -26.5  28.7
503  504  202.92  -19.25  15.8
504  505  176.50  -16.5  16.7
505  506  193.00  -14.83  10.9

endcentreline
endsurvey R9