Complex sentence: Designed with a light axle-loading of only 16 tons this meant that the BR Standard 4's route availability of RA4 was unrestricted and was able to work on all regions throughout the UK, batches of the class were allocated to every region except the Western.
Split into simpler sentences: Designed with a light axle-loading of only 16 tons, this meant that the BR Standard 4's route availability of RA4 was unrestricted and was able to work on all regions throughout the UK. Batches of the class were allocated to every region except the Western.