Note the gap twixt tender and cab |
Phil, oiling up 35006 |
A very nice start |
Graham, cleaning 35006 in the rain |
Eleanor, keen to stay dry. |
Graham, in the rain once more |
Injectors |
Before the steam valves for the injectors can operate, the feeds from the manifold need to have been fully opened. These take a surprisingly large number of turns to open, but really do eventually come to a hard stop, rather than fall out in your hand.
Manifold valves |
A rather useful feature is that the blower is operated by levers connected by a linking rod on both sides of the cab. GWR practice is to have the blower on the driver’s side, so if the driver doesn’t notice a blow back coming into the cab, the poor old fireman has to reach across the Firehole door to get to it. GWR firemen are it seems rather more expendable than drivers. The 8F when it was on the GWSR, had the blower directly over the Firehole door, indicating that the LMS were happy to risk the wellbeing of their crews equally. There are of course two water gauge frames on the backhead, much as I love GWR locos, I feel much happier with two. I’ve never had to change a water gauge glass on the road, and I very much hope never to have to, but having a spare gauge to look at rather than play about with test cocks has to be an improvement.
I don’t seem to have managed to get a photo of the infinitely variable dampers, one for the front and one for the rear, arranged front at the front, and rear, by a process of elimination at the rear, but they are simple to operate and effective. It is worth noting that they also allow ingress of air at the sides, which means that the area above them on the sides of the firebox burns through rather quicker, so you’ll need to keep an eye on that and make sure those spots are filled.
Much has been made of the hike in the coal bill associated with running 35006. I don’t subscribe to the theory that there will be more than a modest rise in coal consumption, in spite of the fact that it has twice the grate area of our other locos. I’ll stick my neck out a bit here and explain why. Elementary physics dictates that more energy will be required to boil a larger volume of water (yes, 35006 loses there), but, there is a set amount of power required to pull a loco and seven carriages from one end of the line to the other, the variables are going to be how heavy the loco is (OK, 35006 loses on this count), how efficient the boiler is at producing steam (Running at 250 PSI and thermic syphons will help 35006 here), how steam tight the boiler and steam passages are (35006 is practically fresh out of the box and scores well on this front), how well thermally insulated the boiler is (the larger volume to surface area ratio of a big boiler will help 35006 retain heat too), I presume that the under-cladding insulation will be similar on all our locos (You’ll be pleased to learn that asbestos hasn’t been used for such purposes in many a long year). General friction and brake drag will of course have an effect, but I don’t imagine that is much better or worse on 35006 than any of our other locos. The fact that there are three cylinders rather than two to feed is just a distraction, once under way, 35006 runs at much lower cut offs (assuming that the driver is on the ball) and consequently uses rather less steam per cylinder than an equivalent two cylinder design running at the same speed. A significant variable is how well it is fired, excessive blowing off will result in much of the coal’s energy being released to warm up the atmosphere rather than move the train.
Just for the record, this was on the second trip, when Graham was firing. |
In practice, a thin layer of coal across the grate, with a slightly thicker back end for the back third of the grate will be enough to get you from Toddington to Cheltenham Race Course (CRC) without further recourse to the shovel, except to fill in any gaps that may appear on the grate. Even then, you’ll struggle to keep it quiet at CRC. Coming back the other way, will require some intermediate shovelling, but very little if you’re to keep it quiet at Toddington. I have no doubt that if so inclined, it would be possible to “box it up” a bit at CRC, and not touch the shovel at all until back at Toddington. The “elephant in the room” that I have failed to mention thus far of course is that the driver and fireman are on opposite sides of the cab compared to a GWR loco. Like 9 in 10 people, I’m right handed, so I don’t adapt to the wrong side of the cab naturally. Phil made certain threats, which he carried out when I appeared on his side of the cab, shovel in hand. I didn’t threaten to retaliate by mentioning his impressive wheel slip in the tunnel, so I won’t…. oops!
Unlike me, Graham was a bit of a natural at firing from the wrong side |
A photo that will doubtless soon grace Phil’s social media account. |
That’s enough of the differences between 35006 and the rest of our home fleet for now. In spite of the forecast, the weather improved considerably on Sunday, so much so that by the time 2807, running as train 2 went out, they had decided to dispense with the storm sheet.
Andy knows how to keep the crew happy, he generously procured bacon butties for us all
Andy, enjoying breakfast |
Phil gets to grips with the big red handle |
Crossing at Winchcombe after the first trip, 2807 appears without its storm sheet and a jubilant crew. |
Graham called for the water to be turned off, just a little too late |
So confident of the rain staying away that they had taken down the storm sheet |
Ian (l) and Andy |
Apparantly there is now a Thomas character called Philip |
Spud-you-like |
Phil... feet up! |
Ray |
Graham sweeps away the spilt water |
Graham emptying out one of the outside hoppers |
Damping down the centre section of the ash pan at the front. |
In the rain on platform 2 |
On the ash pit |
35006 |
5 |
Clas 37, D6948 |
12+2=5... apparently |
Finally, Tina did her 40 mile sponsored walk along a section of the Cotswold Way last weekend, in torrential rain, taking 17 hours from start to finish. You can't help but be impressed that she kept on going, when many others would have given up. She would like to thank everybody who sponsored her.
This comment has been removed by a blog administrator.
ReplyDelete