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Offline ShannonN  
#1 Posted : 02 November 2018 18:33:37(UTC)
ShannonN

Australia   
Joined: 14/08/2016(UTC)
Posts: 408
Location: Maryborough, Qld
https://www.lner.info/locos/W/w1.php


The experimental Gresley W1 No. 10000 "Hush-Hush" was the only 4-6-4 tender locomotive to run in Britain. It included a number of experimental features including a marine type water-tube boiler working at 450psi.

Although this original design is usually dismissed as a failure due to the revolutionary water-tube boiler, No. 10000 did successfully work a number of high profile trains. No. 10000 was completely rebuilt and re-entered service in 1937 with a conventional boiler and A4-style streamlining. Both before and after rebuilding, No. 10000 never carried a name, although it was often referred to as the "Hush-Hush" due to the initial secrecy of the project.

My Trains
EL Cheapo starter set stuff
Märklin 29752 Starter set Fire Brigade with diesel locomotive Henschel 500 x2
Märklin 29204 Starter set "American High speed train
Märklin 29163 Starter Set "My with Märklin" Loco BR 89
Märklin 29213 Starter set ICE NS Battery
Märklin 29202 Starter set "Belgian High-speed Rail
Märklin 29210 Starter set "Freight train"
Offline jvuye  
#2 Posted : 03 November 2018 11:55:04(UTC)
jvuye

Belgium   
Joined: 01/03/2008(UTC)
Posts: 2,612
Location: South Western France
Originally Posted by: ShannonN Go to Quoted Post
https://www.lner.info/locos/W/w1.php


The experimental Gresley W1 No. 10000 "Hush-Hush" was the only 4-6-4 tender locomotive to run in Britain. It included a number of experimental features including a marine type water-tube boiler working at 450psi.

Although this original design is usually dismissed as a failure due to the revolutionary water-tube boiler, No. 10000 did successfully work a number of high profile trains. No. 10000 was completely rebuilt and re-entered service in 1937 with a conventional boiler and A4-style streamlining. Both before and after rebuilding, No. 10000 never carried a name, although it was often referred to as the "Hush-Hush" due to the initial secrecy of the project.


Yes, another interesting story!
That loco was even featured as a Meccano model back at the time!
Water tube boilers are efficient steam generators, but they work best at constant load, which is not the case of locomotives.
The biggest advantage a smoke tube boiler of the Stephenson type is the large amount of power reserves contained in the tons of very hot water contained in it!

Cheers

Jacques
Jacques Vuye aka Dr.Eisenbahn
Once a vandal, learned to be better and had great success!
thanks 1 user liked this useful post by jvuye
Offline RayF  
#3 Posted : 03 November 2018 12:17:58(UTC)
RayF

Gibraltar   
Joined: 14/03/2005(UTC)
Posts: 15,227
Location: Gibraltar, Europe
In the 1980s I dabbled in OO white-metal loco kits, specialising in the LNER. I built a J72 tank engine and a J39 tender engine before other plans got in the way and I concentrated on Marklin.

During this time I was in love with the Wills kit for the W1 "The Hush-hush". I planned to buy the kit after building a couple of other large tender engines, but never got that far! Yet another unfulfilled dream! RollEyes

This is what the built kit would have looked like:

UserPostedImage
Ray
Mostly Marklin.Selection of different eras and European railways
Small C track layout, control by MS2, 100+ trains but run 4-5 at a time.
thanks 3 users liked this useful post by RayF
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