11. The ruling gradient was 1 in 40 and the sharpest curve 8 chains ( 160m ). 12. The ruling gradient was 1 in 33 ( 3.33 % ) uncompensated for curvature. 13. The line then fell with a ruling gradient of 1 in 60 to Abbotsham at 6m 3c. 14. Earthworks were considerable for a tramroad, and the ruling gradient was limited to 1 in 38. 15. For most of the line the ruling gradient did not exceed 1 in 176 ( Central Railway company. 16. He indicated the importance of the ruling gradient , and its effect on train loads and running costs. 17. The line had a 1 in 40 ruling gradient , and there were several inclined planes on it. 18. It was well-built with a ruling gradient of about 1 in 66 and minimum curvature of. 19. The lines were undulating with ruling gradients of about 1 in 80 and lengthy climbs averaging 1 in 100. 20. It included significant tunnelling work and had a ruling gradient of 1 in 70 rather than 1 in 35.