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FAST FRED (67.75.113.33)

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Posted on Friday, June 27, 2003 - 5:15 am:   

For folks that think the two stroke is passe, take a look at:

http://www.pureluckdesign.com/other/rta96c/index.htm

"Fuel consumption at maximum power is 0.278 lbs per hp per hour (Brake Specific Fuel Consumption). Fuel consumption at maximum economy is 0.260 lbs/hp/hour. At maximum economy the engine exceeds 50% thermal efficiency. That is, more than 50% of the energy in the fuel in converted to motion."


About 2X as good as my 71's and way way better than the S.60 or M.11!

But, it might be a bit large for a coach!

FAST FRED
Tony H. (Bluegrass) (216.207.2.195)

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Posted on Friday, June 27, 2003 - 5:38 am:   

Fred that Is some Engine, 2 bad It wont fit In my Eagle, and here i am needing an Engine.
Ed Jewett (Kristinsgrandpa) (171.75.99.80)

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Posted on Friday, June 27, 2003 - 10:26 am:   

Maybe Tyco will come out with a 1/25 th scale model.

Ed.
Gary Stadler (Boogiethecat) (68.7.217.217)

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Posted on Friday, June 27, 2003 - 1:01 pm:   

YIKES!! I wonder what the absolute maximum RPM of the thing is!
(gee, do ya think they could mess with the governor and get 120 RPM out of it and not blow it up!!??)
Truly, I often wonder at the tenacity of man to even think of building stuff this big, let alone getting away with it.
...and now my (what I thought was big) bus engine seems like a tiny teensy weeensey 'lil toy... thanks Fred for popping my bubble!!!

Oh yeah... while I was there I backed the URL out a bit and found this fun tidbit....

http://www.pureluckdesign.com/other/squish/


cheers
gary
FAST FRED (67.75.110.27)

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Posted on Friday, June 27, 2003 - 1:16 pm:   

You ain't lived till you climb down the removed access hatch into a cylinder & find 2 guys already inside with grinders taking off the top ridge , so the engine room built in crane can lift out the piston , after it has pulled the individual head.

Piston Lifting by screwing 2 inch eye bolts into factory provided sockets!

And Some folks want to
"Run with the Big Dogs!"
yet have little idea how BIG some dogs can be!

FAST FRED
t gojenola (24.237.70.61)

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Posted on Friday, June 27, 2003 - 5:13 pm:   

How in blazes do you start one of these?
David Anderson (66.90.192.172)

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Posted on Friday, June 27, 2003 - 10:19 pm:   

Tim the Toolman, Taylor would soil his underwear for this one.

Argh, argh, argh, argh. MORE POWER!!!
Scott Whitney (66.82.9.28)

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Posted on Friday, June 27, 2003 - 10:27 pm:   

"How in blazes do you start one of these?"

Just guessing, but. . . in the third picture down, there appears to be a whopping big electric motor, possibly geared down, and connected to a gear that meshes with that monster flywheel?

Scott
Greg Roberts (Gregeagle20) (24.175.223.137)

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Posted on Friday, June 27, 2003 - 10:45 pm:   

Could be the electric motor but also many large engines use "air in the head" starting means. The air header uses valves to port the air into the cylinder at the correct timing and dwell to get the bad boy rolling and then the compression realeases are closed and fuel turned on followed by ignition. This one does look like an electric motor start though.
Peter Broadribb (Madbrit) (216.67.218.252)

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Posted on Saturday, June 28, 2003 - 6:36 am:   

May be it has a decompressor to allow that electric motor to "spin" it over, if you can call 120 rpms "spinning"...... LOL.

Peter.
FAST FRED (67.75.110.93)

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Posted on Sunday, June 29, 2003 - 5:26 am:   

Actually starting is a 10 to 12 hour procedure.

A big GM EMD train gen set or two begins to pump hot water thru the block , and heat/pressurize both the lube oil and fuel oil .

The electric motor usually is a "jacking motor" and when everything is warm enough can turn the main engine to the pre detirmined START position.

Thats when the air valve is cracked , and hopefully , Away we Go !


Aint that fun?

FAST FRED
Bob Belter (67.121.0.19)

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Posted on Monday, June 30, 2003 - 1:20 am:   

Ho, Fast Fred,

Great show!!!! And I thought that the (two ea)
P&W R-2800 in the AJ-2 Savage was a big hot "injin".

This monster engine must be a direct drive to the prop.
I can only believe that they run the engine backwards for reverse thrust. Wonder how they stop the shaft??? More air??? Would take a helluva brake pedal.

Enjoy/s/Bob
madbrit (65.73.228.76)

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Posted on Monday, June 30, 2003 - 4:12 am:   

Surely when the engine power is stopped, the effort to try to propel the boat would stop the prop real quick?

Peter.

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