Red Baron Engine

[Psychographic]

I'm starting to detail this engine a bit and would like to ID some of the plumbing. On the exhaust side of the engine, my guess is the green outilined pipe is the water intake, red is the water output, and I have no idea what the yellow hose would be for?

 

 

Is the green line the same as the green line on the exhaust side of the engine?  I'm hoping someone here can tell me what these lines are. 

 

 

 

 

 

[Ace-Garageguy]

Some answers: the smaller pipes down low on the cylinders are a manifold that connects the lower ends of the individual cylinder water-jackets together.

There are larger connecting pipes at the tops of the cylinders, between them.

The illustration below is labeled in German, so I'll translate some of the terms.

warmwasserzuleitung: hot water pipe. These connect the water jackets at the TOPS of the cylinders, but the term prefaced by vergaser specifically denotes a carb-heat line running from the cylinder-water-jacket connecting hot water pipes to the top of the carburetor. This was probably another carb-anti-icing measure, and an effort to keep fuel vaporized.

kuhlwasser abflussrohr: cooling water drain pipe. This is hot water OUT of the engine, going to the radiator

kuhlwasserpumpe:  cooling water pump. This pushes COOL water FROM the radiator into the manifold on the cylinder sides.

Und so: Cool water from the radiator comes in at your yellow pipe, goes through the pump, goes out through the green pipe to the cylinder water jackets, and hot water goes back to the radiator at your red pipe.

NOTE: Those are two different versions of the engine in the color photos, and a third version in the old B&W photo, but the water routing is similar in all of them. The B&W engine appears to have the same water pump configuration as the top color photo. Use your best judgement to make something up that looks reasonable.

Edited April 11, 2018 by Ace-Garageguy

[Pete J.]

Bill,  nice job of translating.  Here are two additions which may be useful. 

Warmluftleitung-  warm air duct.  Being an aircraft engine, it is subject to carburetor icing.  The solution to this was to route the air intake through the crankcase to heat it up.  As a hot rod, hot intake air would be a detriment to power production.  You could easily open this side up or put some form of air filter/supercharger in place below the carburetor.  You could also mount a side draft weber in that location.  

Dekompressionshebel-  This is the decompression mechanism.  It serves the same function as on large bore motorcycle engines and opens the exhaust valves to allow the engine to be rotated easier for starting. You should have some access to this from the drivers seat as it would be needed to start the engine.  

[Psychographic]

20 hours ago, Pete J. said:

Bill,  nice job of translating.  Here are two additions which may be useful. 

Warmluftleitung-  warm air duct.  Being an aircraft engine, it is subject to carburetor icing.  The solution to this was to route the air intake through the crankcase to heat it up.  As a hot rod, hot intake air would be a detriment to power production.  You could easily open this side up or put some form of air filter/supercharger in place below the carburetor.  You could also mount a side draft weber in that location.  

Dekompressionshebel-  This is the decompression mechanism.  It serves the same function as on large bore motorcycle engines and opens the exhaust valves to allow the engine to be rotated easier for starting. You should have some access to this from the drivers seat as it would be needed to start the engine.  

I'm doing away with the kit's intake and exhaust, so I've got that covered.

 

Do you know how much force is needed to move the lever? Would it be feasible to have this operated off of a cable if I decide I'm taking the detailing  that far?

[Psychographic]

22 hours ago, Ace-Garageguy said:

Some answers: the smaller pipes down low on the cylinders are a manifold that connects the lower ends of the individual cylinder water-jackets together.

There are larger connecting pipes at the tops of the cylinders, between them.

The illustration below is labeled in German, so I'll translate some of the terms.

warmwasserzuleitung: hot water pipe. These connect the water jackets at the TOPS of the cylinders, but the term prefaced by vergaser specifically denotes a carb-heat line running from the cylinder-water-jacket connecting hot water pipes to the top of the carburetor. This was probably another carb-anti-icing measure, and an effort to keep fuel vaporized.

kuhlwasser abflussrohr: cooling water drain pipe. This is hot water OUT of the engine, going to the radiator

kuhlwasserpumpe:  cooling water pump. This pushes COOL water FROM the radiator into the manifold on the cylinder sides.

Und so: Cool water from the radiator comes in at your yellow pipe, goes through the pump, goes out through the green pipe to the cylinder water jackets, and hot water goes back to the radiator at your red pipe.

NOTE: Those are two different versions of the engine in the color photos, and a third version in the old B&W photo, but the water routing is similar in all of them. The B&W engine appears to have the same water pump configuration as the top color photo. Use your best judgement to make something up that looks reasonable.

Thank you Bill.

[tim boyd]

On ‎4‎/‎4‎/‎2018 at 2:11 PM, Dirty Dave said:

Side note: When building my "Mess-O-Schmitt" competition coupe, I used two of the Red Baron engines, siamesed at the crankcases, to create a V-12 version, before adding a crank-driven Paxton supercharger setup.

Dave....that is just a WAY, WAY cool modeling project!  This is the type of creativity that is so often missing from the current modeling scene.  Had this been entered in the old MPC National Modeling Contest series, it would have been a hands-down "Best Originality" trophy winner  Well done,...

As for the rest of this thread, a really impressive series of informational nuggets.....this is a great example of a forum thread at its finest.  Kudos to all involved..

TIM 

[Pete J.]

4 hours ago, Psychographic said:

I'm doing away with the kit's intake and exhaust, so I've got that covered.

 

Do you know how much force is needed to move the lever? Would it be feasible to have this operated off of a cable if I decide I'm taking the detailing  that far?

Don't want to step on your thread but this is how I did the air intake on a Red Baron I did some time ago.  Thought it might provide some inspiration.  Never finished it, but I may need to get back at it one of these days.  

As to the decompression lever, I have no experience with the physical force to operate it, but considering the fact that this is scaled down to about half size, I don't think anyone could argue with a cable control.  You could leave it alone and just say it takes two people to start the engine.  On the real deal aircraft it takes at least two people to start it. 

[Psychographic]

I'm going in a different direction as far as induction is concerned.

 

 

Edited April 12, 2018 by Psychographic