Cutaway locomotive model

[peahrens]

Here are some photos from Steamtown (Scranton) which Chuck references, taken on a trip with my grandson.  He (we) learned a lot.

I wich there was a Revell steamer cutaway model for the bookshelf.

[Anonymous]

Bob,

[Railphotog]

Our eldest son visited England many years ago, and visited a railway museum.  He brought me back a book on the museum, in which there was a photo of a prototype British steam engine with cutawy sections.  I don't recall if it operated statically or not, but it was very interesting.

Here's an effort of mine I did many years ago, using an Athearn dummy F-7:

 

 

 

[zstripe]

Chuck,

Models like that have always intrigued me...so much that I have a Engineering degree in Machine Design. Though not Locomotive steam Engines, I have built 1/4 scale models years ago, of plastic and metal parts of the ''visible v8 engine'' and ''visible slant six engine'' by Chrysler. One time I connected a varible speed mix master motor to the slant six and at the slowest speed, it would run fine and you could see pistons and rods, all internal moving parts, lifters, rocker arms and so forth. As a test...I increased the speed and watch the engine slowly come apart from the increased friction. If I recall correctly it lasted less than 3 minutes. As a kid, I saw many hand made and models of working steam engines, that ran on Alcohol, I had always wanted one...but being a kid, the cost was out of reach for me and my family anyway.

Now that You brought this topic up....a new light came on in my brain....saying why not, I have the money now. 

Take Care! 

Frank

[tomikawaTT]

Found in the July issue of Tetsudo Mokei Shumi (Japan's equivalent to MR) - a 1/24 scale D51 class 2-8-2 with 'bites' out of the loco and tender.  From front to rear:

• Cylinder and valve chamber opened to show interior parts.  Explanation and several photos of how 'working' piston valve and 'real' cylinder and valve chamber were fabricated.
• Smoke box cut open to show interior, including cinder screen and superheater header.
• First boiler course - tubes, flues and saturated steam pipe.  One flue open to show superheater loop.
• Steam dome, base and in-dome throttle valve sectioned.
• Firebox top quarter opened - staybolts, brick arch and fake 'flames' surrounding main drive motor.  Regular drive in place.
• Cab roof cut away to expose fully-detailed backhead, including crew.
• Hole in tender side exposing slope sheet, coal in bunker and interior of cistern.

The model was mounted on a display track with two rollers per driver.  Motion was provided by the motor in the firebox, not the rollers.  Valve motion reverse accomplished by a mechanism in the display track, which also reversed the drive motor.

So much for the description.  I have seen a similar 1:1 scale display at Steamtown, and I don't doubt that there have been others, model and full size.  Has anyone on the forums ever built anything similar, or met anyone who has done such work recently?

Just curiosity on my part.  I have no intention to do anything similar.

Chuck (Modeling Central Japan in September, 1964 - with an un-sectioned D51)