Coordinate Reference Systems
Remarks
Approximate alternative to official OS polynomial method (tfm code 1041). May be taken as approximate transformation TM75 to WGS 84 - see code 6947.
Frequently Asked Questions
What is the accuracy of the TM75 to ETRS89 transformation?
This transformation (EPSG:6946) has an accuracy of 0.41m using the NTv2 method. Area of use: Europe - Ireland (Republic and Ulster) - onshore.