43096
On Moderation
- Joined
- 23 Nov 2015
- Messages
- 18,728
All the sleeper mark 5s are apparently rated at ETH index 11 (55kW), so load 8 (the standard on the Inverness) is index 88 and a full train is index 176. A Class 92 on AC is rated at 900kW (index 180), I believe. Don't forget that the ETH index is the maximum power draw and is only likely to be reached either with aircon going at full pelt on a hot day (unlikely on a sleeper train!) or if heating the train from very cold in the depths of winter (which is far more likely!) - even then, if the stock is heated from a shore supply the loco won't have the full load.I had a good look at the Highlander being serviced in Inverness this morning.
12 Mk 5s, so obviously a 73/9 can provide sufficient ETH (index 70 according to the data plate) for load 12. Which surprised me a bit, as load 16 has an ETH index >100 (hence requires a 92), and when I was at school 12/16=0.75, so if load 16 has ETH index >100, load 12 has ETH index >75. Though the formation only had 1 club car.