AT a ceremony in Central Station, Glasgow, today a British Rail Class

90 electric locomotive will be named The Herald and its nameplate

unveiled by Herald editor Arnold Kemp.

It will be a brief pause in the locomotive's busy life. The naming

ceremony will take place on Platform One at 11am. Exactly half an hour

later The Herald will pull the 11.30am service as it leaves Central

Station for London Euston.

Class 90 locomotives are the most modern now working on the west coast

services. Fifteen of them work passenger services. The Herald is Number

90003 -- weight a massive 84 tonnes, capable of pulling 400-tonne trains

at speeds of up to 110 miles an hour. Developing 4505 hp, it draws power

from the route's 25kv overhead wires.

BR regard their Class 90s as ''very reliable''. Built by British Rail

Engineering at Derby in the late 1980s, each travels approximately a

quarter of a million miles a year on the west coast route. Servicing is

carried out at Polmadie, Glasgow, and heavy maintenance at Willesden

depot in London.

The timing of today's ceremony has been arranged by British Rail to

allow passengers travelling on the 11.30am service to view the naming of

their engine before boarding for the christening run.