Thank you for explaining this, I was having a hard time because I live in the US so the tracks I'm getting is HO but the trains I want (Mallard and Flying Scotsmen) are OO Scale, So I am happy that you simplified it much better than google !

you learn new something every day 😀

Wish they made some american locos in òo just for the brit market to run alongside the br stuff

that flying scotsman just looks stunning...bet you smile every time you see it, those carriages are so good. if only I had the space.

I only use HO scaled tracks so I'm glad an OO guage 14xx can work on them.

Theoretically UK models could now be built to HO scale - the size of motors having shrunk significantly since the early 1900's war years (the reason HO/OO was created, because O used too much valuable resources). But it would probably alienate all the UK modelers who already have OO scale rolling stock. The reason HO track guage was used for OO trains, was because it was being mass produced for the European market (yeah US too, but it's a long way to ship it!), and thus cheaper option. Now you can get EM (slightly more realistic guage), and convert OO scale to run on it, using slightly wider axles, without too much bother, though the track is more expensive, it does give a more realistic look. Then there's P4 (true scale), but to convert OO trains you need wider axles and narrower wheels (to fit the existing chasis) and thus a much finer tolerance of track build to avoid problems - or scratch build everything!!

Im fine with either one. I just wish i could get more UK locomotives here in the states

So basically you can run both 00 gauge and H0 gauge on either track pretty much which makes life a lot easier.

There was American OO scale that had the 1:76 proportions but ran on a track that was slightly wider than HO gauge track. This OO scale was most popular in the late 1930s & early 1940s. Leonard Williams has some You Tube videos of these trains with an oval of OO gauge track circling an oval of HO gauge track on the same layout board. The difference in size is easily noted.

HO = 1:87 scale, or 3.5mm on the model to 1 foot in real life. OO = 1:76 scale or 4mm on the model to 1 foot in real life. But both scales use the same 16.5mm gauge track for commercial reasons. Assuming you are modelling a Standard Gauge railway with 4ft 8.5inch track.... This means that the model track works out at 4ft 8.4inches in HO (virtually correct). And 4ft 1.5inches in OO scale. So 2.3mm too narrow to be realistic ! Some British modeller's object to using commercial track for their "OO" scale models, because it is 2.3mm too narrow. As a result there are two alternatives being used by some clubs and individuals in Britain. These are known as the EM Gauge Society with 18.2mm track. And the Proto Four (P4) Society which uses exact precision 18.83mm gauge track. Not for the faint hearted, as you have to rebuild the chassis's on all your OO trains to accept the wider wheelsets of either EM 18.2mm or P4 with 18.83mm. Both Societies have numerous specialist tools, track, & wheels sets, to aid conversion...... NOTE: Commercially produced rolling stock uses different types of couplings, depending on whether the products are aimed at Britain; Europe or North America !

Concise and informative. Thank you!

I'm doing both : OO for UK trains, and HO for italian ones. OO is a compromise, I would rather have UK trains in HO scale, but OO is acceptable because it have roughly the same advantages as HO in space used and mecanical constraints, at the price of a non accurate gauge for the tracks. Well, it uses the same tracks as HO, so I can have a layout where I only have to swap the setting to go from Italy to Britain...

Don't forget that the Lionel OO Gauge Hudson runs on 19mm gauge tracks and is not compatiable with HO 16.5mm gauge tracks. The only track systems it will run on is the 19mm bakelite roadbed original, gargraves OO gauge track, or On3 gauge track.

I like both Ho and OO train sets, and they are the same with the tracks.

I am so happy that a Bachmann HO track works with a Hornby 14xx

Thank you for all the information sir, i shall remember all this so i can work on my own layout of HO Scale stuff :)

OO used to be common in the states, but it was a different track gauge than HO. HO won out over OO in the 1940s, and today there are very, VERY few people who still model American OO gauge

Flying Scotsman toured the us in the early 70s. She looked like a runt compared to the American trains. Good thing oo scale trains were sized up to accommodate their motors, otherwise combining ho scale trains with oo gauge locomotives wouldn’t work, and vice versa.

HO means 'Half O', i.e. half of 7mm/ft O scale. 00 is a typical UK compromise. EM (18mm gauge) and P4 (18.83mm gauge) look a lot better. One of the biggest problems I have with much of the 00 track is that the sleeper spacing looks completely wrong. In the UK, Peco have finally addressed this after decades of people asking, but companies like SMP Scaleway have been making better sleeper spaced track for ages.

I knew that OO-rolling stock is somehow out of scale (they look a bit like narrow gauge to me), but I didn’t know the reason (the bulky motors/mechanisms). Thanks for this interesting video 🙏👍

I 100% prefer 1:87 (it´s the leading scale here in Europe, aside from the UK ofcoarse), however OO still holds superiority in the narrow gauge market (which is 009, and for everyone else H0e (or H0n30, but i don´t see anybody using that name for it aside from the Wikipedia article)). Which kinda sucks since i prefer having European (mainly German or Polish) narrow gauge trains on my (not built yet) layout and those are thus harder to find.

That's Great thanks...now I buy the HO scale Tunnel Portals for my 00 scale Layout...thanks for the reference...

👍 I ALWAYS wondered. Now I know. Hope the rest of 2024 is as fulfilling. 😂

I WOULD LOVE TO SEE the same loco compared in different sizes can’t seem to find a video that does it I might have to buy some and Do a video on my channel. But hats off to you for being the first to actually take real life examples.

Very useful! Thanks

I think you could easily run both size stock and locos together?

And for some reason, Accurascale and Dapol list the scale as “1:76.2”

As a model train enthusiast and I had my first HO scale rails train that I got in TX I think OO scale is pretty much the same thing as HO I might be getting the A1s, tank engines etc

So oo guage is disporportionate to the track? How am i going to sleep at night now?

OK so I have been staying away from HO for no reason then, I can use either on either *if I don't care about true scale that is*

Does OO run on AC or DC

These kinds of things don't really matter until people start complicating the picture by including things like narrow gauge along with their standard, gauge. For example O-Gauge works out to 5 foot gauge at 1: 48 scale (-a little too wide for 56.5" standard gauge). Meanwhile On30 has become very popular, which is a little too narrow for three foot gauge in O-Scale. Either of these is fine on their own, but then comes the fateful day when the On30 modeler wants to add some dual gauge. Laying a 30 inch gauged third rail between two 60 inch gauged rails puts that narrow-gauge rail pretty much dead center, so it winds up looking a great deal more like 3-Rail O gauge than dual-gauge track. -so as a fix, some modelers have started modifying O Standard Gauge trains to run on narrower (1.00 inch vs. 1.25") gauge track and restore the dual gauge geometry. It's called On48.

So how big would a 14xx be in ho scale since if the flying scotsman would be that small then how smalle would a 14xx tank engine be?

Will there be any problems if I mix ho oo scenery parts and vehicles because I went to the uk and got a bunch of oo stuff but back in Canada I have ho stuff. Should I use my oo scale houses people and trains if I make a layout?

Hi, i have a question Are there digital 00 scale models and if yes can i use the same remote that is used for the h0 scale?

I'm British. Thanks for showing the difference graphically like that, but I don't see how it's a win-win situation though. As you have shown you cannot combine the two, for instance you could not replicate the Scotsman's or the Royal Scot's visit to America. It does mean that an American locomotive can fit on a British scenic layout without demolishing station platforms and bridges but what would be the point of doing that anyway? I model in O gauge and we have the same problem. British is a bigger scale, 1/43, American 1/48. I am in the process of constructing 1/43 scale American. There is a very small British HO scale group and a HO scale Scotsman does exist, but finding one is going to be difficult. I reckon 3D printing will dramatically change things for the British HO scale group in the future.

I hope this will work (if I have them)

I own two: a (broken) flying Scotsman and a (working) Santa Fe sd40-2

british locomotives really were so small they had to make them big

Can oo, on30 and ho run on the same track and same controller?

I got a Dominion of Canada OO Hornby running on my HO layout. Check it out. Thanks for posting🚂🇨🇦🇬🇧🇺🇲🙋

So now couldn’t they change it to ho scale

Can HO run on 00

Hi i am from India and I love trains.

So theres no diff

I don't care... I run N scale 😁

So basically 00 scale is a result of retardeness of UK toy industry in the post war period, because they could not fit damn motor inside.Then a century waste of money on a toy scale.