New Class Proposal .

[Andy Greene]

Figured with all the tunnel stuff being discussed, we may as well get this one on the table while the Iron is Hot - so to speak.

We can start another thread and argue over the rules later- should take us well into Winter so you Northern guys have something to do as well

Pop Pop Stock Production will be first, once we have beaten that thread to a pulp and run any new interest away , we can move on to the Multi Candle classes.

https://youtu.be/g3OLhFx8KZY

 

[Kris Flynn]

That is awesome!

 

[Patrick Mulvany]

Andy,

I want some of what you have been smoking!!! They are unique in these modern times but I think the steam engine died with the locomotive??? I have to admit they are cute!!

Later!!

Pat

 

[DPeterson]

I can think of a couple dedicated "Rule Mongors" that would love to write the rules for this class.

 

[Andy Greene]

I can think of a couple dedicated "Rule Mongors" that would love to write the rules for this class.

Im thinking that will be half the fun in this entire venture Doug , once they bone up on them some- the rules process alone could take years to complete,

Dont even get me started on using Olive Oil and different heat sources, oh and then there will be the National rules and Saws Rules debates. The only upside is -

No Outboards, as it would blow out the heat source

 

[MarkScott]

I'm game. When do ya wanna start?

 

[Tom Foley]

Here we go!

 

[Ain'tSkered racing]

Maybe at those blazing speeds some cd's can make better calls ...lol

 

[lohring]

IMPBA does have a steam class already. The SAW record is around 9 mph. A real steam powered hydro should be able to add around 100 mph to that. However, it will be a lot tougher than setting gas or nitro records. For a start, everything but screws and bearings is made from scratch. A control system would be needed for RC. Then, the power plants are notoriously cranky. See

When everything is working the result is impressive. https://www.youtube.com/watch?v=CJBG7k3DIms#t=472.016985
Lohring Miller

 

[dwilfong]

I made one of those in boy scouts many years ago...................nothing new..........................

 

[Charles Perdue]

A cow eating hay is the first step in your statement.......

 

[dwilfong]

No the sun shining on a blade off grass is the first step...........................

 

[Ain'tSkered racing]

Found my new saw boat..lol

https://youtu.be/D0Kfl1kqTXA

 

[raptor347]

Lohring,

How many times have I told you "build the power plant and I'll wrap a boat around it"?

 

[Andy Greene]

Lohring,

How many times have I told you "build the power plant and I'll wrap a boat around it"?

Very very true - Snowman . As Foley could weld two boards together perfectly and strong-

You could make em go fast

 

[lohring]

The boiler & combustion chamber are finished. The cylinder block is assembled on a Zenoah crankcase. The cylinder liner is in the lathe waiting to be rough bored. Then off to the mill for ports and bolt holes and back for bore grinding. The piston and dykes ring are next.

The hard parts will be the variable valve gear and variable water pump. I have the designs, but there's a lot of work (and scrap) between an idea and a working prototype. Then comes breadboarding the whole power plant for dyno testing. I would be surprised if I get to that stage by next summer. A quick acting control system is the biggest issue. Fortunately we have very low cost computers (Arduino, Rasberry Pi) that can handle monotube boiler issues better than the mechanical systems used in the past.

Below are the boiler and combustion chamber pictures. The combustion chamber is similar to model turbine combustion chambers with an electric ducted fan blower. It's really impressive on propane. The next trial will be with Coleman fuel and a model turbine variable speed pump.

Lohring Miller



Combustion Chamber & Blower



Inside the Combustion Chamber



Boiler Coil



Assembled Boiler

 

[Jerry Dunlap]

The boiler & combustion chamber are finished. The cylinder block is assembled on a Zenoah crankcase. The cylinder liner is in the lathe waiting to be rough bored. Then off to the mill for ports and bolt holes and back for bore grinding. The piston and dykes ring are next.

The hard parts will be the variable valve gear and variable water pump. I have the designs, but there's a lot of work (and scrap) between an idea and a working prototype. Then comes breadboarding the whole power plant for dyno testing. I would be surprised if I get to that stage by next summer. A quick acting control system is the biggest issue. Fortunately we have very low cost computers (Arduino, Rasberry Pi) that can handle monotube boiler issues better than the mechanical systems used in the past.

Below are the boiler and combustion chamber pictures. The combustion chamber is similar to model turbine combustion chambers with an electric ducted fan blower. It's really impressive on propane. The next trial will be with Coleman fuel and a model turbine variable speed pump.

Lohring Miller

P1010296.JPG

Combustion Chamber & Blower

P1010297.JPG

Inside the Combustion Chamber

P1010299.JPG

Boiler Coil

P1010300.JPG

Assembled Boiler

Someone has way too much spare time!!

JD

 

[lohring]

Cylinder on Zenoah Crankcase



Cylinder and Liner

Lohring Miller