41. The maximum gradient was set at 27 per thousand ( 2.7 % ) and curves had a minimum radius of. 42. This resulted in a difficult to operate line, with a minimum curve radius of and a maximum gradient of 6.8 %. 43. These figures were dwarfed in comparison to the maximum gradient of the climb, listed by race organisers as reaching 27 %. 44. Its track has a minimum radius of 60 metres, and a maximum gradient of 2.5 % ( 1 : 40 ). 45. This would involve an improved gradient from Upper Hutt, followed by a tunnel on a maximum gradient of 1 in 132. 46. Incorporating the second intermediate sprint at Soriano Calabro, the climb itself was long, and reached a maximum gradient of 10 %. 47. The two engines performed well and were capable of hauling loads of up the maximum gradients with comparative ease at about. 48. The pass road has a maximum gradient of " only " 23 % today on a short section on the Carinthian side. 49. The maximum gradient on this line was 1 in 33 ( 3S ! % ) compensated, with a minimum curvature of radius. 50. It also used the Riggenbach rack system on its final approaches to Engleberg, but with a very steep maximum gradient of 25 %.