Super Simplex 7 1/4

[KennLindeman]

Hi Folks
SO it's crazy Ken form Cape Town Southern end of Africa

My brother and I attended a steam running day couple weekends ago and we chatting over a ice cold beverage. As much as we love our 5' engines and that we are both build 2 other engines each, we really need to get a 7 1/4 that can pull more people as ours can only handle 2-3. 

So we both like the look of the Simplex and the real simplicity of the build would make it relatively easy and quick to build. So I have the plans and the Martin Evans book and I am busy drawing the model to 7 1/4 scale which is not to difficult. But now we have started discussing the 0-6-2 option and what would the benefits of the trailing bogie be. I presume the boiler would be longer and be more stable on the track. 

So any comments, suggestions, pics etc would be welcome

Ken 

[KennLindeman]

So first question I have is on 5' the side frames are 1/8 or 3mm And if we multiply y 1.5 or 1.45 as I have seen id the recommended factor we get to 4.5 mm. Now here is RSA (Republic of South Africa) we work with metric size material. So is 4 to thin or 5 to thick

[KennLindeman]

So if the wheels B2B size is 6.875' What size should the frames width be. How much side play must be allowed for

[JonL]

I don't have any answers here I'm afraid but it sounds like an interesting project. Keep us informed.

[KennLindeman]

So a update on progress. One of our local club members at out club in in Cape Town put me onto the 7 1/4 Bridget which was serialized in ME 136 and 137 Lucky for me I have most of the ME from 1960 to 2000 and lucky for me they where top of the storage box.

[JonL]

Sounds interesting! Keep us informed.

[dscott]

I have moved the rear wheels back out of the way of the ash pan on mine.
Bigger capacity and the grate just drops out!
As she is Freelance you can do all sorts to her!

David and Lily. I once spent 3 days in Cape Town... 1968 Christmas.

[KennLindeman]

So David did you build a 0-6-0 or a 0-6-2. Having easy assess for the ash pan is important. One option we are looking at though is to be able to have a gas fire option. We want to design a engine that has various option avialable .
Begin able to do 0-6-0 or 0-6-4

Gas or coal

Side water tanks or water in rider coach

Injectors or axlepump or hand pump in side tanks or handpump in rider coach

Solid wheels or poked wheels

Copper boiler or steel boiler

[KennLindeman]

So drawings are coming along nicely but spend a lot time thing about the 0-6-2 arrangement. I am mainly doing it because I like the look of the extra trailing wheels But what advantages to i get for it. I can extend the boiler But does this extra set of wheels make the riding of the engine better.

[delaplume]

Hello all,

Did the 5" gauge Super Simplex come with 2 options ie 0-6-0T and 0-6-2T then ?

I've inherited a 5" gauge 0-6-2 full rolling chassis with new boiler, smokebox etc and it's supposed to be a Super Simplex.....Maybe the previous owner drew up and made the extras ??.....

If it was only as an 0-6-0T then I've an idea to use the 3.5" gauge MONA as the inspiration for the cab and rear plate work....or obtain a small, 5" gauge tender maybe ??

Thanks ........ Alan

[John Baguley]

Alan,

The 0-6-2 version was in an article by John Jones in ME 9th May 1997. The idea was to enable the size of the rear bunker to be increased for extra water capacity and to make the loco more commfortable to drive.

My own reasons for designing an 0-6-2 version was mainly to extend the boiler to give more grate area.

John

[delaplume]

Thanks John........ much appreciated...

Our club archives have just been updated so I'll go and give them a try......That has the potential to become a freelance GWR "Adsorbed" engine I think....Some steps and an injector would help...

Alan

[KennLindeman]

Anybody have a copy of the 4 March 1997 ME

[KennLindeman]

Been busy converting my Simplex drawings to metric and 7 1/4 scale

hosting.photobucket.com/images/i/kennlindeman/Fran%207.25.JPG

[builder01]

7-1/4" scale? That will be pretty big, (I think you mean 7-1/4" gauge). At any rate, good work! Your drawing looks fine!

[KennLindeman]

Yup you right 7 1/4 gauge and converting to metric Quite a flustering task. Trying to find the closest metric material and trying to get everything to fit.

[KennLindeman]

Morning World
So was up early this morning. And spend some more time working on the drawings. I understand why most model builders have not bothered converting old drawings to metric. All starts well and then half way you start going back to the being more and more as you find parts not working out. And then up sizing the parts to 7 1/4 makes it one ^$*@%^@&*8 But lots of fun and should be worth while in the end. Anyway another day or so and the Valve gear should be finished

[KennLindeman]

I have been giving a lot though to the fastens to be used. What is the best. Normal hex bolts, Allan cap or Allan counter sink? Whats the thinking out there

[uuu]

If they're on show, then anything except normal hex heads will look odd. For strength and ease of use, Allen cap heads are hard to beat.

Wilf

[KennLindeman]

www.flickr.com/photos/188192022@N05/49836168441/in/dateposted-public/



SO is there a way to use Flickr to insert photos