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Drummond's Bug.


snitzl

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This project is to try and do as much as possible to finish off an L.S.W.R. class F9 4:2:4T.

 

Brief Prototype History for the Bug.

The bug was Dugald Drummonds inspection loco built by L.S.W.R. works at Nine Elms and  completed in april of 1899, numbered 733. Original livery for the loco was apple green  edged with chocolate with a black line edged either side by white. The saloon was painted  dark green / brown with the upper recessed panels in salmon pink, lining for the saloon  was venetian and gold. The roof when new was painted white which very soon became grey.  In December 1924, the loco was repainted / renumbered by the Southern Railway to 58 S. Wheel splashers for this loco were attached to the main frames. The Bug, besides being  Dugald Drummonds own personal inspection locomotive was used by Drummond, to travel  to and from work, withdrawn in 1940.

 

This Project.

This project is to try and do as much as possible to finish off an L.S.W.R. class F9 4:2:4T ,  Drummond's Bug. The story sofar : Model was scratchbuilt to EM gauge standards and while the chassis was virtually complete, the main body and attached saloon were missing a few details, interior of the saloon had zero detail and no glazing, why I'd painted the model  before some of these details were added is beyond me. The saloon section was cut down from  a previously etched southern elec fret and is not quite correct to prototype. These frets  were etched in an home made etching tank which was nothing more than a wooden box lined with  glass fibre, a horizontal paddle ( also of wood ) and a motor mounted on the outside. Artwork  was drawn overscale on a drawing board with ink pens in the old fashioned way. The resulting  frets were a little uneven with regards to depth of cut, some edges were undercut and in the  case of the bug, an area had not edged at all and needed machining which caused a small hole  in one of the lower panels. Chassis was later stripped down, rebuilt to P4, and included Mike  Sharmans Flexichas system and split frames on the bogies to improve electrical pickup.


This project starts with a dismantling of the chassis into its main components and a study of a  7mm drawing by Ray Chorley in a copy of Model Railway Constructor dated August 1968 which also  includes a couple of BR photographs. During the models reconstruction, details are given on how  Sharmans Flixichas system were applied to this model and is explained with a simple schematic and  a look at the relevant features on the chassis components. I must make a point of thanking members  of rmweb for enlightening me with regards to the boiler injection system and its relevant  components with a special thankyou to gz3xzf ( Bryan Hardwick ) for annotating a drawing with  the information required ( topic can be viewed here ), therefore, a good chunk of this blog is  devoted to the machining and building of, these very small components. Once the chassis had been  rebuilt, only the rear bogie was wired as an electrical pickup to the motor because wheel splashers  on the front bogie looked to be a potential short circuit with the cylinders when negotiating curves.  The rear bogie proved to be unreliable and was modified to include additional wires sprung lightly on the axles. A very basic interior for the coach section was modelled, the coach was stripped of its paint and the missing roof lights and water tank filler added. The boiler also needed modifying due to a small error with the steam valve positions and this was also stripped  of its paint.

 

Painting and Lining.

Painting and lining are skills I've yet to master, I find them difficult, fustrating and the fact  that my hands are unsteady dosn't help. After many years of modelling L.S.W.R and Southern, a  decision was made that Snitzl Town would be free from such regional limitations and would not  belong to any given region at all. Snitzl Town would be a private concern able to purchase rolling stock from any of the regions and repaint them in Snitzl Town liveries. Therefore, in the world of Snitzlshire, we will assume that at great expense, Sir Archibald Snitzl purchased  the bug from his best friend, Dugald Drummond and had her repainted in the workshops of Snitzl  Town, Dugald Drummond will now have to find other means of transport for his 60 mile  journey to work.

 

Snitzl's bug will now be used to run Archibald Snitzl to and from work, as did the original  bug for Dugald Drummond.

 

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Snitzl.

 

Edited by snitzl
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I do like blogs that are about making things which show craftsmanship, this is a classic scratchbuild. 

 

Split frame electrically connected compensated bogies using copperclad as a spacer then compensated back to the driving wheels. Thats the same method I use and like you I see a huge improvement in track holding and pickup. 

 

My influence was also reading Mike Sharmans work many years ago, and one ends up with locos that perform well. 

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Hi Dave John, Nice to hear a comment from a fellow modeller that thinks along the same lines. Like you, there's no doubt in my mind that Sharman compensated chassis make's a  big difference in reliable running and electrical pickup, so much so that I wouldn't build any rolling stock without it.  Thanks for the comment.

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