British Steam Trains | Smallest to Largest!

[@dkiely03]

11:44 The Gresley A1s were a pre-grouping design and were classified 7P by BR.

[@SamsTrains]

Ahh fantastic - that would have been a good choice then! Thanks for watching - Sam :)

[@stephendavies6949]

I thought it was 8P / 6F ?

[@dkiely03]

@@stephendavies6949 The A1s were introduced in the early 20s, and were 7Ps, which was as powerful as they came at that point. The GWR Castles from around the same time were also 7P. The first 8Ps (to my knowledge) were the Kings (enlarged Castles modified for higher tractive effort) in 1927. The A1s were rebuilt into A3s at around this time, but these were also classifed 7P6F. The first LNER locos to be classified as 8P were the A4s of 1935.

[@stephendavies6949]

@@dkiely03 Hi again. Your comments peaked my interest and I dug more deeply into this issue, and uncovered some new (to me anyway!) facts, such as at some point after 1948 BR decided to standardise the power classifications, and - with some exceptions - re-classified (mainly but not exclusively) LMS & many LNER Pacific 7Ps as 8Ps. If true, this would explain our difference of opinion & why some of the largest, most powerful express engines show 7P on the cabside when in LMS livery & 8P when in BR colours. This reclassification was apparently adopted throughout the power classes by BR

[@iceeblueburst03]

14:28 The coach nearly derailed as it almost tipped over.

[@SamsTrains]

haha well spotted!! xD

[@thematthewexpress5999]

I spotted that too, was about to say the same thing.

[@ItAbel-xy3xk]

British locomotives look so stylish and efficient, great video as always!

[@bimb0cat]

The 9F was the biggest to run on British railways, but it was a tiddler compared British-built steam locos for export. Beyer Peacock built 4-8-2+2-8-4 Garratts in the 1950s for East African Railways that were twice as long, twice as heavy, and twice as powerful as 9Fs. A wonderful bit of British railway heritage that most railway fans in the UK don't know about. Sadly.

[@HarryC_640]

Despite it being made for freight, the Evening Star and it's fellow 9F's do look great with a rake of coaches!

[@azuma892]

Please review the Bachmann 36-151 Plasser OWB10 with crane, Hattons have 2 in stock now. :)

[@SamsTrains]

I do want to - they're just extremely expensive! :( Edit: I thought you meant the big cranes... those actually aren't too bad! Thanks for watching - Sam :)

[@GosportRailworks]

Just to mention, the SR Schools Class is a 5P And anything Southern could be considered all mixed traffic, as said Schools class have be used to haul freight trains when there's nothing else to use (and mostly at night, can't have the passengers seeing lovely express engines pulling goods!), but Terriers were often used for freight trains on smaller lines as either nothing else about or nothing else could run on those lines. Great video as always Sam!

[@lindaoffenbach]

Wonderful. The sheer intricate quintessentialness of the British steamers has again been demonstrated by this superb line up. Just imagine that we could see them all arranged like this in real life...

[@SamsTrains]

Thanks so much Linda - I agree, that'd be something! Thanks for watching - Sam :)

[@andrewpalm2103]

I enjoyed this video very much indeed, Sam. A very informative overview of British steam loco sizes, a subject of which I was completely ignorant. More, please!

[@azuma892]

British steam locos have a nice range of sizes. :)

[@dkiely03]

5:19 The system was originally developed by the Midland Railway, then adopted by LMS and BR in slightly modified forms following the grouping and later nationalisation.

[@dkiely03]

As the Jubilee comes up after 11:10, it's worth noting that this was involved in the biggest change from the LMS version of the system to the BR version. The LMS originally classified the Jubilees as 5XP, which was in between 5P and 6P (which included the Royal Scots). In 1951, the 5XP locomotives were reclassified as 6P, former 6P locomotives such as the Royal Scots became 7P, and former 7P locomotives (such as the Coronations) were reclassified as 8P.

[@dkiely03]

14:03 :-)

[@louisbuscarino7330]

A very interesting video. The great range of size power and livery’s is amazing. That is why I am so interested in British railways so much more interesting than ours in America.

[@johnstedman4075]

I've been looking for a model of the unique, little-seen and possibly mythical (?) BR loco that apparently carried a Classification which was turned all the way up to "Class 11". I believe it was called "the Spinal Tap"...

[@stephendavies6949]

The most powerful passenger loco ever was the Gresley P2 Mikado 2 8 2. They were rebuilt as A2 Pacifics during WW2. The most powerful of all were the LMS (33 off) & LNER (1 off) Garett locos. However, I've not seen either referenced as "Class 11" machines

[@DESARD12]

I can't figure if your comment is supposed to be a joke or not, but in case it isn't, can you tell me what you know?

[@johnstedman4075]

@@DESARD12 This is a secret which I am sworn to guard with my life, at least. I could not reveal the answer even if it cost me my much-viewed VHS copy of "This Is Spın̈al Tap", a 1984 mockumentary film that has one or two jocular moments, but sadly does not feature any steam locomotives.

[@DESARD12]

@@johnstedman4075 Understandable, have a great day.

[@ashleysmith110]

The Caledonian Railway 264 Class or "pug" was a 0F locomotive and was often seen with a homemade tender, so could technically be an 0 class tender locomotive?

[@magtwo1398]

yes

[@jagc1969]

One of the thngs I like about this channel is that I always learn something new. This time was the British Classification System. Thanks, Sam.

[@hughpightling33]

The BR 9F was actually used frequently as a passenger locomotive on the Somerset and Dorset as suitable power for the winding and steep route. Well known as motive power on "The Pines Express". As such it could well have been classed as MT. Great video Sam.

[@davew2452]

San, The cab on your 2P is way out of alignment

[@riparadis]

I know it’s a glaring error

[@eastpavilion-er6081]

Theoretically, if Gresley's P2 locomotives were kept to BR era instead of getting rebuilt by Thompson, it would receive power classification of 8MT, which would be the only one of its kind. Also, LNER P1 with its boosters is said to be the first locomotive in Britain to reach the 9F standard. The two P1 locomotives were scrapped right after WW2 and would never see BR operations.

[@SamsTrains]

Wow! That’s a fun fact - such a shame that never happened!

[@markdunwell3288]

PRINCESS CORONATION, 9F, CRAB, FOWLER TANK, LORD NELSON JUBILEE, SUPERB PURE class, thank you Sam. 🌟🌟🌟🌟🌟♥️♥️♥️♥️♥️🚄🚅🐖

[@robertlucido3686]

I went to the railfans weekend at the Huckleberry Railroad today, I rode the train, saw several train layouts and went on a tour of the restoration shops, and they have a new diesel engine #12

[@robincatweed]

The reason for the different numbers is that the power thresholds were tested at 50mph for passenger locos, but 25mph for freight. That's why you get the 5P4F - different tests. If the numbers happened to match for both they were called 5MT. Excellent video - brilliant idea!

[@littlebacongreengreatweste2606]

The LMS Hughes Crab’s Can Probably Go 50mph With Frieght Too

[@robincatweed]

True! And the 9F really proved itself as a passenger loco, though it was never given a P classification ;)

[@thecentralfloridarailroader]

Nothing like to make a sams trains video to make my birthday better! (And yes it is my birthday today)

[@thomascollector5443]

"Steamies may get up to tricks but diesels are much stronger" Very interesting and an amazing video as usual Keep up the great work -TC5

[@FazbearEntertainment414]

No you need 6 diesels to Paul a heavy train. You only need 1steamy to Paul a heavy train

[@thomascollector5443]

Its song lyrics dude

[@FazbearEntertainment414]

What do u mean

[@thomascollector5443]

Its lyrics to a thomas song

[@IndustrialParrot2816]

ahem articulates are more powerful then diesels just look at the garratts they can outpull most diesels and most of them are narrow gauge too

[@leroyholm9075]

You need to take into account carriage sizes and weights which accelerated into the 1930's. What you consider to be a 2P Midland 4-4-0 would easily be pulling a rake of 7+ coaches on an express train. When the 1930’s brought about the speed challenge LMS - LNER not only did you know see the A4’s & Coronations, they were pulling carriages that were twice the size of the 1920’s and they were also twice the weight!

[@toboldlygosmodelworks1973]

The WR still used the GWR Route Classification disc's on their ex GWR loco's up until they were withdrawn, rather than the 'BR System'. Even some of the BR Standards running on the Western Region had the Route Classification discs.

[@Sparky129]

Excellent video Sam. It was a great idea to show these engines and showing what the real things were capable of. Also, the scene at 6:14 had the 2Ps tender derailed, and I just thought that was funny to point out.

[@lachd2261]

Great video. Absolutely adore that unstreamlined princess coronation, what a beauty

[@SamsTrains]

Thanks Lach, yes me too!!

[@ManOfUnknownWorth]

The funny thing is that the 9F would be considered middling in the United States. Most of the American locos you have reviewed have higher tractive efforts than the 9F. There are even those--like the Yellowstone, Allegheny/Blue Ridge, and Big Boy--being equal to nearly four 9Fs. Just as a note: if you ever look into a Yellowstone or any other Minnesota Iron Range locomotive, that the Duluth, Missabe & Iron Range Railway is pronounced "Duh-LOOTH Miss-AH-bee" (/dəˈluθ mɪˈsɑbi/ in IPA.)

[@IndustrialParrot2816]

yep the articulates are so powerful and very much the garratts were hold the record for most powerful locomotives on the narrow gauges

[@ender3770]

14:29 the coach wanted to tip but the loco wouldn't let it

[@DanielNeedham2500]

The D11 62677 Edie Ochiltree was a Gresley built loco of the GCR Robinson "Improved Director" design for work in Scotland. All 24 where built including this one, Gresley know a good existing locomotive design when he saw one.

[@paulcherrytrains3339]

Great video. I think it's OK to include the 9f. They were used on passenger services on the S&D. Evening Star pulled the last Pines Express. Cheers Paul.

[@diedertspijkerboer]

I'm wondering if the difference in classification for passenger s and freight has something to do with pulling power versus speed. The classification for passengers might be with lower criteria for pulled weight, but higher ones for speed.

[@PebProductions46]

Also, I believe wagons and coaches were coupled differently. Coaches were close coupled so that they would all be hauled at once to ensure a smooth start and finish. Wagons were coupled loosly so that the momentum of each would pull the next, therefore allowing for larger rakes per engine.

[@lukebarber9511]

The Evening Star wasn't the only 9F on passenger service; apparently they were used often on the Somerset and Dorset, and were used on other lines as substitutes when the usual Pacifics weren't available.

[@mailstorminurbox]

9:55 I wish I could have seen a Black 5 today, quite a splendid engine

[@morganmorris4285]

Haven't been on this channel since 2017. It's been a nice return 🙂

[@odenviking]

Thanks for uploading this video. It explaines the classificaton system the british steam locos. Thanks fore explainng the difrent classes of steam locos. 👍👍👍🇸🇪👍👍

[@cacline72]

Now do one for diesel classifications from smallest to largest, I think BR had a classification for diesels based on performance and size as well.

[@SamsTrains]

Great idea! I’ll see what I can do!

[@andrewdking]

I like that idea to.

[@foxhillrailway2252]

excellent run through of the steam locomotives... Great 2P loved this video Sam

[@stephendavies6949]

In general, passenger locos - usually due to their larger wheels - were rated lower for freight than passenger work, where both power levels were listed. For example, the A4 was an 8P/6F

[@modelrailwaynoob]

Thanks Sam this was very helpful and although it seems obvious now, I didn’t know. I don’t call myself the model railway noob for nothing 😎. I literally started my interest in June 2018 when I built a child’s Thomas layout and enjoyed it. Now I have built up quite a collection.

[@xlthecoolguy-lz7uh]

If you ever consider doing a video like this with freight locomotives, here are 10 locomotives I'd choose if I were you: 0F: LMS Pug 1F: Midland 1F 2F: LMS Ivatt class 2 (It's a 2MT in the BR era, but back in LMS days it was a 2F, so take it or leave it) 3F: LMS Jinty 4F: Fowler 4F 5F: LNER J39 6F: LNER Q6 7F: S&DJR 7F 8F: LMS 8F 9F: BR 9F

[@iceeblueburst03]

Nice evolution of locomotives from 0P-9F! This goes to show how impressive these upgrades are!

[@thegreatwesterner9481]

There was a couple of locos you could of chosen for 8p theres the kings coronations princess royal and the most powerful Express loco in Britain is the lner p2s with 44,000 pounds in traction effort great video

[@nathanevans4254]

The p2 would have been classified as 9p if they'd have survived into br ownership

[@tobyytlai]

The LMS Garratt and the LNER U1 don't even fit into the system!

[@OlivierGabin]

Just one word before talking about the subjet : my J27 had the same problem as yours on arrival : chimney not fitted...AS a bonus, I have the folding footplate between the engine and the tender to put back on, but no problems with the coupling rods. Seems Oxford Rail might have to change his manufacturer later due to quality issues... Great idea your viedo on power classification, I can give you another idea : why not one by type of wheelsets ? See the difference bitween a Mugl and a Pacific, what is an Atlantic or a Prairie, this kind of stuff if you wish. By the way, nice video today, I love it !

[@peterhealy9044]

Great video Sam. Definitely do the freight classification too please. I'm stuck for a 2f on my layout so it'll be interesting to see. Cheers... keep up the great work 👍

[@kevnlinz1]

Thanks Sam, really enjoyed this video and learn something as well!

[@sjaakmcd1804]

hi Sam, another great vid. The power rating number was not just power it also indicated the brake rating. The 0P Terrier was very powerful so could be a 2P but had a poor braking system that could not stop a train needing 2P brakes, so hence the 0 rating

[@TANGARASandOSCARS]

You did forget a 5P! The Southern Railway Schools class. Though it would've hurt the progression a bit.

[@SamsTrains]

Ahh really? That one must have slipped under the radar!! :O Thanks for watching - Sam :)

[@2010ditta]

A very interesting video Sam..nice one. Evening Star, even though it only had a short working life of 5 years..1960 - 65..never worked a freight train.

[@chaoticgoose4887]

Love the video, though I have one little thing to add. Though the 9F's were classified as freight engines, they were a rather common site on heavy express trains. The S&D used them for their expresses and some depots had 9F's on stand-by in case an express engine failed. They didn't commonly pull the top link services like the Flying Scotsman or the Royal Scot, but they didn't shy away from named expresses and weren't slouches in speed.

[@SamsTrains]

Thanks for sharing - appreciate the info! :D

[@Jimyjames73]

Hey Sam @ 5:16 - I've got the very same Loco!!! Very informative Sam Thanks 🙂🚂🚂🚂

[@SamsTrains]

Very nice Jimmy! Glad you enjoyed it!

[@FunAtDisney]

I really enjoyed this! Being an American I never understood what those numbers meant. In a way though it is similar to how diesels in the states we were classified, such as the EMDs “F” series that used a “P” (as in EMD FP7) to signify they were a bit longer to accommodate steam heating for the passenger cars. Thanks for the video as always!

[@SamsTrains]

Thank you so much - really glad this was useful to you!

[@MayoHosko]

Now you should compare the power classes of American steam locomotives to British versions. Say a 9f vs the big boy

[@johnd8892]

The system originated with the Midland Railway and so was taken up by the LMS and then later by BR. The classification was based on the power output represented by a locomotive's tractive effort at 50 mph (passenger locomotives) or 25 mph (goods locomotives). This is the continuous tractive effort and is much lower than the starting tractive effort which is the figure usually quoted in technical publications. Also explains why some Locomotives had different passenger and freight classifications. Eg 5P4F Other railways did not use the system. Non LMS types only gained a classification in BR days if they survived in service that long.. Eg no Stirling Single classification. Not at all a locomotive class since the classification was not unique to a class.

[@edwardvincentbriones5062]

Fun fact about power classification: In the case of some steam locomotives, like the SR Q1s (5F or 5FA), there is another letter beside the F. There are two letters: A and B. They meant to represent the low power range or high power range of the power class (that is how weak or powerful they are on the same power class). I’m not sure which one’s which but this is a very special and interesting fact that I can share in this comment section.

[@willrussell2134]

Freight locos often had higher power classifications because of their small driving wheels making them more powerful. The most obvious example is the 5MT and 8F which are near identical locos apart from their wheel arrangement.

[@YourAverageRailwayFan]

Hey Sam I just got a 0F BR pug for my layout and it’s really nice thanks for that review like a year ago :)

[@NWR81]

Lovely engines! Great video!

[@tbrooke3016]

Wow wonderful video! I loved the explanation and obviously the beautiful trains

[@little_britain]

There were several reasons for different power classifications for passenger and freight. Freight was largely unbraked (unfitted) early on, so a loco that didn't weigh much wouldn't have much stopping power, regardless of its hauling capability. As a consequence of unfitted trains, freight was also restricted in speed - typical 40 mph. This allowed freight locos to have smaller driving wheels, giving a loco more torque but lower top speed. Passenger locos on the other hand, had larger driving wheels (like the Stirling Single). in order to give a higher top speed. Also, for Passenger work, locos had to be fitted with a vacuum pipe system, and heater pipes (steam) for train heating. This means that most freight locos couldn't haul passengers "even if they could". They could however, still serve as banking engines for passenger trains.

[@SamsTrains]

Fascinating! Thanks for all the info! :D

[@jamesdunloptrains]

Loved the video today Sam really interesting to hear about them locomotives

[@jamestalbot4900]

Interesting and slightly different idea for a video Sam, I like it. The exact criteria for the power classification was different for freight and passenger locos, I think the speed for the TE was different, so a 4P isn’t directly comparable to a 4F. I seem to remember that the 9 was created especially for the 9F to emphasise the power of the new class.

[@matthewforth8561]

Not sure if you have a GWR Star class Sam, but they were classified 5P when they entered BR service. Great video, as always

[@marcod1600]

Your videos are almost always the best! And now the f or the mt version!

[@garrymartin6474]

9F's regularly ran passenger trains on the Somerset and Dorset

[@johnd8892]

If the LNER P2 Mikados had survived into BR service they would likely be classified 9P. Very strong tractive effort at the 50 mph classification point for passenger work.

[@SamsTrains]

Yeah I wonder! Very mighty locos indeed!

[@badlyfilmedproductionspres8022]

LMS Jubilee was orginally 5XP, then became 6P. if you have a BR Clan , that is also a 6P!

[@AustralianRailwayVideos]

Been awhile but im back! Awesome video, just like i remembered 👍

[@MetF_]

this is an amazing and very organized video xD! well done Sam you never fail to impress me -Charlie

[@dkiely03]

10:04 Do you have a Star or a King Arthur (LWSR N15)? I believe they were both 5Ps used designed mainly for passenger work. Of course, many express passenger locos were used on freight work later in their lives, and as a result aquired a freight power classification. The A4s for instance were 8P6F.

[@MegaTrainlover]

British steam locomotives are by far and way the best in the world for me! Great video!

[@agriben7591]

the terriour is just the right size for me sam nice and small but i would not mind a powerful 9f loco thx ben :)

[@ricktownend9144]

Great video - love the loco line-up

[@iceeblueburst03]

The Big Boy would be classified as a 30F because of the big size and the long freight trains it hauls, imagine if he joins in this group! 😂

[@roycspary8923]

the western system impresses me as they used a coloured shape, which gave route availability an a letter on top of the shape which gave power. if my notoriously poor memory serves the widest route availability was a yellow triangle and the most restrictive was the double red dot of the kings. so not only what it could haul, but where to at the same time. i like the logic of this. thanks for the usual great video. you could do it again with all western engines regards Roy. PS I just followed another of your reviews and got aB2. totally impressive model

[@SamsTrains]

Yeah that’s quite a smart one isn’t it - maybe a video on that would be fun?

[@roycspary8923]

@@SamsTrains well I would enjoy it. but then I enjoy your videos your layout is so joyouslyplafull. yes it would be easy to make fun of it, but the pursuit of enjoyment over "rivet counting" is a breath of fresh air. a video of this would be enjoyed by every GWR fan. despite preferring the Southern, I will admit that the gwr is the most charismatic as evidenced by its fans calling it "god's wonderful railway" and Brunel was probably the greatest railway engineer as he designed everything buildings, great bridges and as a sideline, early iron ships, with ground breaking power systems including modern style propellers just in front of the rudder so you probably can't loose doing a gwr version of this video. thanks for another great episode

[@godzillahomer]

Not all steam locomotives got classified by this system, if the railway was planning to withdraw a class early on, they'd not waste time on classifying a class. Also, classes that didn't pull normal trains often went unclassified, shunters and bankers. The Midland's Big Bertha never had a classification as the system was based on pulling power and she only pushed. The classification is also somewhat based on tractive effort, but things like wheelslip can affect it. The SR Q1s have a tractive effort comparable to the LMS 7F 0-8-0s, but since they had issues with wheelslipping on heavier loads, they were only classified as 5Fs. Still insane for 0-6-0s built for cheap. Bulleid's wartime designs are pure genius. For Diesels, they had a separate system, one based on their engine horsepower. Small shunters like the 07, larger shunters like the 08s and 13s, Type 1s like the Class 20s, Type 2s like the Class 24s, Type 3s like the Class 37s, Type 4s like the Class 40s, and Type 5s like the Class 55s. 0P: Terriers being a 0P isn't majorly shocking. They started being built in 1870, so by BR members of the class were nearly 90 years old and that is just insane longevity for a steam loco, some classes were lucky to get a decade or two. Tender engine, technically some of the older locos could qualify, but they'd have been withdrawn before LMS or BR ownership or not owned long enough by them to be classified. 1P: It fits having a MR livery, the classification system did come from the MR. For a tender engine, quite a few older engines were this weak. GER Class T26 for example, they were the last of 2-4-0 tender engines to be in use and were used by BR. Another would be the MR 115 Class, the 4-2-2 Spinners. 2P: Fitting for the SD&JR to be here too, their engines were Midland Railway built and later LMS built. Some 5Ps: L&YR Hughes 4-6-4T, SR Schools Class, GCR Class 1B (UK's first SG 2-6-4Ts), and GWR Star Class

[@SamsTrains]

Very interesting, thanks for sharing all of this - neat stuff!

[@brianmicky7596]

Hi Sam, Nice review, made things a bit clearer, , more please, All the Best Brian 🤗

[@bbbbennieandthejets2127]

2:41 sams trains turns to good mythical morning

[@rottenroads1982]

Their are two things that you need. First thing you need: Model Narrow Gauge Railway. Second thing you need: Model Class 28 locomotive pulling special freight train with only box cars. The Narrow gauge model railway will be an OO9 scale model railway.

[@peters1127]

Excellent review, informative and entertaining.

[@leroyholm9075]

There is a terric mistake with the Johnson 4-4-0. These were express engines designed to pull 7+ carriages pre grouping. Not double bogie heavy weight carriages of the 1930-40's!

[@karlyoung3275]

I'm not 100% sure but when the P2 Prince of Wales is finished I've been told that may be a 9p. 5p Schools Class? And the Jubs were a 5xp on the lms.

[@malcolmmyatt9092]

Excellent as always. How about a video on actual weight v pulling power of model loco's ?

[@gavinrfuller]

That little 1P is a stunner

[@188basstrom]

Power class 5P Southern Schools class 4-4-0. Great Western Castles were classified 7P by BR

[@AndrewTheRocketCityRailfan4014]

The GWR also had a power classification that used colored circles that sometimes had symbols in them

[@ashleysmith110]

The symbols were letters that went from A-E, A being lower tractive effort and E being the higher. :)

[@leroyholm9075]

A very enjoyable video. If I only had a time machine. I would take you back to standing on the footplate on my uncles Jinty shunting in my local yard in the 1950’s, you could hear his shunting noise a mile away on the other side of town. How about bunking all those sheds around the country in the early 1960’s, desperately trying to see as many of those 18,000 steam locomotives before they were massacred by Ernest (Motorway) Marples. Look at the queues on the Motorways, look at the queues at petrol stations and still we persist in turning the country into ‘the highway to hell’ No things were not perfect then, we were far happier, far more content and far less greedy!

[@nameless5413]

pretty nifty, look through at least 3 eras if i am not mistaken and showcasing how some machines can approach this whole locomotion business with style.

[@tarkas566]

Apropos of absolutely nopthing other than an amusing coincidence, I was on the M6 today when I was overtaken (and later returned the favour) by a Bentley convertible with the registration "4P". And it was a deep red that wasn't too much off Crimson Lake... Unfortunately, the "soft-top" was a sort of sandy colour, which didn't go with the LMS theme. I wonder how much the vanity plate cost?

[@SamsTrains]

Haha love it - you could’ve taught the owner something about LMS liveries! Thanks for watching - Sam :)

[@LeshaunDinglenutfan7095]

I like how British trains have letters and numbers in their name like it's so cool

[@dirkshere]

I could really mess your head and ask about the LMS black five that had the 5P5F classification 😂

[@danielwalker2613]

You are correct. Terriers did indeed pull freight, not a long heavy rake and not just a passenger loco either. ... I'm looking forward to the freight review Sam

[@bluepretsels]

Lovely video Sam.😎😎

[@gordontaylor1483]

Superb video and hugely educational, well done. Any chance you could point me in the direction of the alternative power source you used in the Hornby HM 6000 video. 3 months and still no sign of one in the post, close to needing sedation 😂. Thanks in advance, Gordon

[@AlvaroCC-qq3uz]

The OP looks a lot like Stepney the Bluebell Engine from TTTE and Friends

[@johncunningham6928]

That particular Terrier is actually Fenchurch. Stepney was, in BR days, 32655, and had a taller bunker

[@piers995]

Is the 2P's cab supposed to lean back like that. I've always fancied getting hold of an S&DJR 2P, but that cab concerns me. A great video idea Sam.

[@gregmacdonald927]

Yes, I was wondering the same thing. Over to you Sam?

[@m10cachilles43]

My LMS 2P cab doesn't lean that far back. I think that might be a feature just on Sam's model.

[@Sparky129]

Yeah, I noticed that. I thought it was just the back wheel arch, but then I looked up. Very strange

[@gearandalthefirst7027]

Wow, I never realized the UK was limited to such pathetically tiny locos. Mostly kidding, they're gorgeous too but it's funny that the massive 9Fs are only upper middle weight compared to US locos. I'd love to see a comparison between a 9F and a Big Boy or PRR T1 sometime. (BR 9F is 66 ft, Big Boy is 85, and the T1 is 122 with tender I believe!)

[@sinistregoth]

We did have some Garratts, the LMS had 33 of them, 2-6-0 0-6-2, 150 tons 46,000lb/feet tractive effort, and the LNER had the U1, a 2-8-0 0-8-2, 200 tons with 73,000lb/feet tractive effort- they were almost 90feet long, and the largest locos on UK rail, not a match for a big-boy, but pretty respectable, especially considering out small loading gauge 😃

[@dkiely03]

I imagine that the main reason the power classification of the Terrier is so low is weight (around 28 tons, compared to 48 tons for a 57xx). As you have showed with a previous experiment, tractive effort is proportional to the weight over the driving wheels. Since the power of a locomotive is the tractive effort at a given speed (I believe 50mph was used for passenger locos, and 25 for goods), the low weight will lead to a low power classification. In real life, Terriers do have a reputation for being 'light on their feet' (i.e. prone to wheelslip) which limits the loads they can pull.

[@azuma892]

I am waiting for the Microace Series 205 Yamanote Line to arrive XD.