5 inch gauge sentinel ‘Sirena’

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5 inch gauge sentinel ‘Sirena’

This topic has 10 replies, 5 voices, and was last updated 4 February 2024 at 20:53 by cameron bell.

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29 January 2024 at 06:46 #710559
cameron bell
Participant
@cameron-bell
Hi guys, im new to this forum but I’ve been model engineering for a while. I’ve recently set my mind on a sentinel loco. Mainly becuase my grandad started it a long time ago and built the stuart D10 and the chasis. so I want to pick up where it was left and complete it. I have amanaged to root out 6 of the original copies of the magazines with the relevant bits of articles however i am missing a fair few. any help with where to find the others or any relevant information from others is greatly appreciated, many thanks all.
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29 January 2024 at 09:35 #710615
noel shelley
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@noelshelley55608
Hi Cameron, welcome to the forum. You do not say where the design was printed ? If model engineer then I may be able to help – as I have copies going back to about 1940. copies can be found on the bay if you know what you need ? Best wishes, Noel.
29 January 2024 at 09:48 #710621
JasonB
Moderator
@jasonb
These issues of ME
29 January 2024 at 09:55 #710623
IanT
Participant
@iant
Hi Cameron,

I wanted to design a Gauge ‘3’ Sentinel a few years back and originally started out with the ‘Sirena’ drawings. I quickly discovered that they were not true (enough) to scale for my needs and eventually found the original makers GAs and worked from those.

So in brief, I’m sure I have a full set of the ‘Sirena’ articles already scanned somewhere. I also have my (2D) CAD drawings (as a number of A4 sheets in PDF form) should they be useful to you. If you PM me with your email address, I will send you what I can find.

Below are some images of one of the G3 engines built to my drawings (about six have been made so far, plus the two original protoypes). They have laser cut frames with resin cast bodies and are battery electric powered with R/C controls. They make very nice chunky little locos for a small exhibition layout or garden railway.

Regards,

IanT
29 January 2024 at 10:21 #710629
IanT
Participant
@iant
PS Gauge ‘3’ is 2.5″ gauge Cameron (I use a scale ratio 1:22.6 – or 13.5mm / 17/32″ ) – so exactly half-scale for a “scale” 5″ engine, should you need to scale my drawings up. I suspect (I cannot remember now) that Sirena was probably 1″ scale (G3 also used to be 1/2″) but there were other differences too. Not a problem really if you just want a nice working 5″ loco.

Regards,

IanT
29 January 2024 at 11:36 #710642
cameron bell
Participant
@cameron-bell
Hi Noel, They were all published in model engineers in 1961, volumes 124 and 125. Having now seen the list of articles posted here I realise I am missing more than I thought. Having looked online I can find some of the copies but not all of them.

Many thanks, Cameron
29 January 2024 at 12:20 #710651
duncan webster 1
Participant
@duncanwebster1
I too have all the articles scanned, and I know where they are in my chaotic system, so if the other offers don’t work out get in touch
29 January 2024 at 22:18 #710739
noel shelley
Participant
@noelshelley55608
Give me a few days and I will see what I have, I should have both volumes. Noel.
30 January 2024 at 09:45 #710774
noel shelley
Participant
@noelshelley55608
If none of us can help there is always a local club. You would find not only help with construction but with luck access to the library and the ME copies you need, just a thought ! Noel.
30 January 2024 at 21:29 #710911
cameron bell
Participant
@cameron-bell
Thank you all for the help. I have access now to a full set of drawings. When I start construction I will post updates and photos into this thread to keep all up to date with what I am on with. It will be slow progress but progress nonetheless as only get time on a sunday to work on projects. Many thanks again to everyone that has helped and given their time to help me get the files.
4 February 2024 at 20:53 #711799
cameron bell
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@cameron-bell
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