Across

8   The Unofficial name for D20 (6)

9   Probably Would Always be in the top five Railway Stations in the English Alphabet if it was not closed (8)

10   Bristol to Paddington Train Service (8)

11   "Riding on a Railroad" by James _______ (6)

12   Capital of RENFE (6)

13   The Belgrade-? Train, resumed after an 18 year break in Dec 2009 (8)

15   DGY? (7)

17   This man lived at the Railway Cuttings (7)

20   See 10 across (8)

22   The D862 Warship? (6)

23   The First Railway Station in the Germany (6)

25   A Castle at 4074? (8)

26   The last 'F' of SBB-CFF-FFS (8)

27   Ring St Davids 34002 (6)

Down

1   The South ________ Railway between Alston, Cumbria and Kirkhaugh, Northumberland (8)

2   RCE? (6, 4)

3   "______ the engine flies” Clickety Clack by CV Warman. (6)

4   Plymouth Railway Station with the Royal Albert Bridge (7)

5   Her Majesty fell in Zimbabwe (8)

6   "Now we are in a dingy town of small ____ houses", In the Train by V. De Sola Pinto (4)

7   The Fifth Letter Container (2, 3, 1)

14   Trains can do this, but most commonly occurs in HGV Accidents (10)

16   This Junction Railway Station, important railhead in Andhra Pradesh lies on the Hyderabad - Vijayawada rail route. (8)

18   To accompany or escort, usually for protection: A destroyer ______ the merchant ship. (General Knowledge Question) (8)

19   The Caledonian Railway is found in this Town (7)

21   The Peruvian National Railways (6)

22   Napa, Dart or Nene? (6)

24   Belgian Class 18 produced by Siemens (Plural) operating between Brussels and Liege (4)