Train Dates for 1977.
(Note: Belfast YR = Belfast York Road; Belfast CSD = Belfast Central Services Depot; Belfast GVS = Belfast Great Victoria Street; ECS = Empty Coaching Stock; LE = Light Engine; GM = Railway company diesel locomotive; Whitehead generally means the RPSI's own Whitehead Excursion Station.)
| Date | Train/Operation | Loco | Itinerary/Route | Special Notes |
| Engine Transfer | Cork - Thurles | Hauled by diesel. No.461 ran hot leading axleboxes so stopped at Thurles. |
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| Engine Transfer | 184+461: Thurles - Ballybrophy 184: Ballybrophy - Dublin Fairview |
Hauled by diesel. No.461 ran hot leading axleboxes so stopped at Ballybrophy. |
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| Engine Transfer | Dublin Fairview - Mullingar | Hauled by diesel. | ||
| Engine Transfer | Ballybrophy - Inchicore | Hauled by diesel. | ||
| Engine Transfer | Inchicore - North Wall - Mullingar | Hauled by diesel. | ||
| Claddagh | Mullingar - Galway & return | The nominally empty carriages were used to convey passengers from Mullingar to Dublin Connolly, hauled by diesel. | ||
| Empty Carriages | Whitehead - Belfast YR - Antrim - Lisburn - Dublin Connolly | First steam train to use the newly laid third line between Knockmore and Lisburn. | ||
| Cu na Mara | 4: Dublin Heuston - Limerick Junction Direct Curve - Limerick 186 LE: Mullingar - Athlone - Athenry - Limerick 186: Limerick - Athenry - Galway 4 LE: Limerick - Limerick Junction Direct Curve -Portarlington - Athlone - Galway |
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| Cu na Mara | 186: Galway - Athenry -Claremorris - Athenry 4 LE: Galway - Athenry 4+186: Athenry - Woodlawn 4: Woodlawn - Athlone - Mullingar - Dublin Connolly -Belfast Central 186 LE: Woodlawn - Athlone - Mullingar |
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| Empty Carriages | Belfast Central - Lisburn - Antrim - Belfast YR - Whitehead | |||
| First Steaming | Whitehead train rides | No.3 "R.H. Smyth" steamed for the first time in RPSI ownership. | ||
| Engine Transfer | Whitehead - Larne Harbour & return | Test run. | ||
| Running-in | Whitehead - Greenisland - Belfast YR - Antrim - Belfast YR - Whitehead | Last train to use the stub of the 'back line' at Greenisland. | ||
| Portrush Flyer | Whitehead - Belfast YR - Portrush - Belfast YR - Whitehead | |||
| Portrush Flyer | Whitehead - Belfast YR - Portrush - Belfast YR - Whitehead | |||
| Portrush Flyer | Whitehead - Belfast YR - Portrush - Belfast YR - Whitehead | |||
| Running-in | Whitehead - Belfast YR - Londonderry - Belfast YR - Whitehead | |||
| Engine Transfer | Transport Museum - Harland & Wolff | Moved by low-loader. | ||
| Empty Carriages | Whitehead - Belfast YR - Antrim - Lisburn - Bangor | |||
| Boyne Valley | 171: Bangor - Belfast Central - Drogheda 186: Dublin Pearse - Drogheda 171: Drogheda - Navan 186 LE: Drogheda - Navan 171+train+186: Navan - Tara Mine & return 171 ECS: Navan - Drogheda & return 186: Navan - Kingscourt & return 171+186: Navan - Drogheda 171: Drogheda - Belfast Central 186: Drogheda - Dublin Connolly 186 LE: Dublin - Mullingar |
First outing to start from two centres. | ||
| Engine Transfer | Thurles - Mullingar | Towed dead. | ||
| Empty Carriages | Belfast CSD - Lisburn - Antrim - Belfast YR - Whitehead |