Working out of Kings Cross
Posted: Sun Oct 17, 2010 8:19 pm
Re North London Heights.
Sorry 'Manna' for attributing these comments to you, should have been 'Flamingo'. Old age I'm afraid.
Not sure where the expression North London Heights comes from, if I recall I believe it was an expression in one of the money railway books of the time, but whatever, hauling an express out of Kings Cross, 13 miles uphill to Potters Bar required supreme effort by both driver and fireman. Fortunately, from my point, as a fireman, all the Pacific's steamed perfectly, were highly maintained at that time, and were on top of the job.
One interesting point. As a fireman at Immingham and used to B1's you always started off with a full head of steam (225psi) and a full boiler of water. However my very first experience of firing an express out of Kings Cross was with 60119 Patrick Stirling. Square fire boxed 'Pacific’s' have quite a deep firebox and require a large fire built up under the fire hole door and higher in the back corners so before backing onto the train I had already built quite a large fire.
Unfortunately for me and anxious to be on top of the job I built up steam too rapidly and well aware of the sin of blowing off in Kings Cross, even though we were outside at the end of Platform 10. Anxiously looking at the pressure gauge I kept injecting a little more water into the boiler to keep 'her' from blowing off and longing to hear the blast of the Station Inspector’s whistle giving us the right away. By now the water in the boiler was in the 'top nut' of the gauge glass as it was known. Finally a whistle and shouts of "right away" and the driver, Fred Fern, not my regular driver as I was normally in a freight link, pulled opened the regulator.
All 'Pacific’s' had 'pull out' regulators, which were very stiff and opened in two movements, before steam was applied to the cylinders. Open too far and the engine would lurch forward with a clattering of wheel spin, beloved by all train spotters. Unfortunately for me the sudden lurch caused the water in the boiler to surge back towards the safety valves and being on the point of blowing off, she did precisely that.
I’m sure that any LNER enthusiast will readily agree that when a ‘Pacific’ blew off, it was ear splitting and quite spectacular, however, unfortunately for me and having the boiler full of water, the outgoing rush of high-pressure steam resulted in boiler water being picked up with the outgoing steam as well. Within about 100 yards on departing from Kings Cross, trains enter the Gas Works Tunnel, and as a consequence and still blowing off we washed the tunnel roof clean from end to end. What is stuck to the tunnel roof? Thick black soot.
All locomotives have small open gaps in the cab roof, normally to allow for reducing condensation, which allowed on this occasion for gallons of thick black boiling hot water to spill directly into the cab. The driver unfortunately had to remain seated to control the engine but with this water cascading all over his drivers cap and shoulders. By the time we emerged out of the tunnel at the opposite end, steam pressure had dropped to around 150psi and practically nearly all the water in the boiler had disappeared too.
Had steam pressure dropped much further the engine would not have been able to maintain vacuum brake pressure and the train brakes would have automatically applied. Fortunately the engine had stopped blowing off and typically, and fortunately for me, the steaming power of the Pacific’s superb boiler, slowly built up pressure. Not an ideal situation for the long drag uphill to Potters Bar.
Our train was not scheduled to stop until Grantham and as you can imagine my relationship with a black soot covered driver was not very conducive for the next 105 minutes. I never worked with that driver again, no doubt much to his relief, and I too learned a very valuable lesson, never to be repeated.
Sorry 'Manna' for attributing these comments to you, should have been 'Flamingo'. Old age I'm afraid.
Not sure where the expression North London Heights comes from, if I recall I believe it was an expression in one of the money railway books of the time, but whatever, hauling an express out of Kings Cross, 13 miles uphill to Potters Bar required supreme effort by both driver and fireman. Fortunately, from my point, as a fireman, all the Pacific's steamed perfectly, were highly maintained at that time, and were on top of the job.
One interesting point. As a fireman at Immingham and used to B1's you always started off with a full head of steam (225psi) and a full boiler of water. However my very first experience of firing an express out of Kings Cross was with 60119 Patrick Stirling. Square fire boxed 'Pacific’s' have quite a deep firebox and require a large fire built up under the fire hole door and higher in the back corners so before backing onto the train I had already built quite a large fire.
Unfortunately for me and anxious to be on top of the job I built up steam too rapidly and well aware of the sin of blowing off in Kings Cross, even though we were outside at the end of Platform 10. Anxiously looking at the pressure gauge I kept injecting a little more water into the boiler to keep 'her' from blowing off and longing to hear the blast of the Station Inspector’s whistle giving us the right away. By now the water in the boiler was in the 'top nut' of the gauge glass as it was known. Finally a whistle and shouts of "right away" and the driver, Fred Fern, not my regular driver as I was normally in a freight link, pulled opened the regulator.
All 'Pacific’s' had 'pull out' regulators, which were very stiff and opened in two movements, before steam was applied to the cylinders. Open too far and the engine would lurch forward with a clattering of wheel spin, beloved by all train spotters. Unfortunately for me the sudden lurch caused the water in the boiler to surge back towards the safety valves and being on the point of blowing off, she did precisely that.
I’m sure that any LNER enthusiast will readily agree that when a ‘Pacific’ blew off, it was ear splitting and quite spectacular, however, unfortunately for me and having the boiler full of water, the outgoing rush of high-pressure steam resulted in boiler water being picked up with the outgoing steam as well. Within about 100 yards on departing from Kings Cross, trains enter the Gas Works Tunnel, and as a consequence and still blowing off we washed the tunnel roof clean from end to end. What is stuck to the tunnel roof? Thick black soot.
All locomotives have small open gaps in the cab roof, normally to allow for reducing condensation, which allowed on this occasion for gallons of thick black boiling hot water to spill directly into the cab. The driver unfortunately had to remain seated to control the engine but with this water cascading all over his drivers cap and shoulders. By the time we emerged out of the tunnel at the opposite end, steam pressure had dropped to around 150psi and practically nearly all the water in the boiler had disappeared too.
Had steam pressure dropped much further the engine would not have been able to maintain vacuum brake pressure and the train brakes would have automatically applied. Fortunately the engine had stopped blowing off and typically, and fortunately for me, the steaming power of the Pacific’s superb boiler, slowly built up pressure. Not an ideal situation for the long drag uphill to Potters Bar.
Our train was not scheduled to stop until Grantham and as you can imagine my relationship with a black soot covered driver was not very conducive for the next 105 minutes. I never worked with that driver again, no doubt much to his relief, and I too learned a very valuable lesson, never to be repeated.