Some Serious Homemade engines

LAST EDITED ON Jun-23-04 AT 01:53 PM (CDT)
 
Don't think I would want to put one on a stunt ship, but they're still impressive.

http://www.enginehistory.org/model_engines.htm

These guys make me feel like I'm playing with Tinker Toys when I'm building my little singles. Fantastic stuff!

I'm not so sure this is appropriate. Just last night I whittled out a stupid venturi and some head shims, all the while thinking how clever I am.

Now you rub my face in some really serious machine work.

Totally inappropriate.

But thanks!

Dan,

You're a technicat, compared to me! Engine wise, decreasing venturi size with a twig is high tech for me.. (It works.)

I put an extra head gasket for a .40 in my ST .51 it worked so well, I just left it that way. (Theory: maybe the inside diameter edge was turbulating the flow in the head..)

Sometimes I cannot prevent a clean thought from entering my mind.

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"When you know a thing, to hold that you know it; and when you do not know a thing, to allow that you do not know it--this is knowledge." -Confucius

>Don't think I would want to put one on a stunt ship, but
>they're still impressive.
>
>
>http://www.enginehistory.org/model_engines.htm

I think I'm hot when I adjust the valves on my Saito 72.
Thanks for making me feel like #$%^%$.
Milton Graham\Proparc

"I don't know about this tuned pipe business. I practiced on that thing until my lips turned blue, and I still can't play a stinkin note."
"Homer J. Simpson"

Download and play the MPG of the Merlin engine running - it's awesome!

The file is big (5 MB), but well worth waiting for.

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"For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled." -Richard Feynman, from the Challenger disaster report

LAST EDITED ON Jun-24-04 AT 11:19 PM (CDT)
 
Interesting. What was the Eagle 22 used in, if anything? It's the same configuration as the Napier Sabre (H24), and even has sleeve valves (neat photos of the mechanism).

I'd love to see (and hear) that run. I wonder if there are any running Napier Sabres left.

Edit: Turns out the Eagle 22 was used in the first Westland Wyvern prototype. 3550 hp!

I'll bet its runs are smoooooth!

I have seen and heard the Merlin run at the Model Engineer Exhibition some years ago, surprisingly quiet. It won the Championship Cup that year. The engine is fitted with a superb functioning scale Rotol variable pitch propeller. In the most exquisite piece of one-upmanship I have ever seen, a card beside the engine said "Note to Judges - The propeller is not to be judged because it has previously won the Championship Cup"! Reading the Rolls Royce story I have just discovered that Rotol was the propeller produced jointly by Rolls and Bristol as a joint venture during WW2, for both their engines.