HOUNSLOW GARAGE - Hounslow West - Cranford - Harlington Corner - Harmondsworth - Colnbrook Village - COLNBROOK Sutton Lane (Mon-Fri peaks)
New Route jointly operated with Route 81

HOUNSLOW GARAGE,- COLNBROOK Sutton Lane (Mon-Sat peaks)
Saturday service introduced

Taken from 1946 map drawn by Mike Harris busmap.co.uk

HOUNSLOW GARAGE - Hounslow West - Cranford - Harlington Corner - Harmondsworth - Colnbrook By Pass - COLNBROOK Sutton Lane (Mon-Sat peaks)
Diverted via Colnbrook By Pass instead of Colnbrook Village

HOUNSLOW GARAGE - COLNBROOK Sutton Lane (Mon-Sat peaks)
ST type replaced by RT

Taken from 1952 map drawn by Mike Harris busmap.co.uk

HOUNSLOW GARAGE - LANGLEY Fords (Mon-Fri 3 journeys am and pm peaks)
Saturday service withdrawn.

Scanned from April 1958 red book, Note that 17 minutes is allowed from Harlington Corner to Hounslow Garage - the same journey now is 27 mins

HOUNSLOW GARAGE - Harmondsworth - Longford - Colnbrook Village - LANGLEY Fords (Mon-Fri 3 journeys am and pm peaks)
Route diverted via Colnbrook Village instead of By Pass

	The blind here on RT2986 shows 81 although dressed for 81A as final destination is LANGLEY Sutton Lane

Route 81C included in allocation

22.08.69
Last day of operation