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XyZspineZyX
10-08-2003, 11:47 PM
http://www.mcdanielrc.com/Merlin-1.htm

http://www.mcdanielrc.com/Merlin-Blue1.jpg

http://www.mcdanielrc.com/Merlin-RS.jpg

http://www.mcdanielrc.com/Merlin-Top.jpg

http://www.mcdanielrc.com/Merlin-Front.jpg

http://www.mcdanielrc.com/Merlin-Rear.jpg


1:4 SCALE V-12 ROLLS ROYCE MERLIN BY RICHARD MAHEU

The Quarter-Scale Merlin is a 25% scale model of the Rolls-Royce Merlin, which powered many of the most famous Warbirds of WWII, including the P-51 Mustang and Spitfire. This engine is intended to fly a 25% scale model of one these planes at scale speed and with scale sound. It not only represents an interesting and challenging project, but also a way to honor the designers of this remarkable engine, and the pilots who relied on it in combat. Pictured above is a complete set of castings machined and assembled. There are no internals yet, but a running prototype does exist. The eventual goal is to offer complete engines for sale, but for now the castings are available to people who wish to build an engine for their own use and/or enjoyment.

Learn more about this remarkable feat of engineering by Richard Maheu at:
http://dynamotive.netfirms.com/merlin/index.htm



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XyZspineZyX
10-08-2003, 11:47 PM
http://www.mcdanielrc.com/Merlin-1.htm

http://www.mcdanielrc.com/Merlin-Blue1.jpg

http://www.mcdanielrc.com/Merlin-RS.jpg

http://www.mcdanielrc.com/Merlin-Top.jpg

http://www.mcdanielrc.com/Merlin-Front.jpg

http://www.mcdanielrc.com/Merlin-Rear.jpg


1:4 SCALE V-12 ROLLS ROYCE MERLIN BY RICHARD MAHEU

The Quarter-Scale Merlin is a 25% scale model of the Rolls-Royce Merlin, which powered many of the most famous Warbirds of WWII, including the P-51 Mustang and Spitfire. This engine is intended to fly a 25% scale model of one these planes at scale speed and with scale sound. It not only represents an interesting and challenging project, but also a way to honor the designers of this remarkable engine, and the pilots who relied on it in combat. Pictured above is a complete set of castings machined and assembled. There are no internals yet, but a running prototype does exist. The eventual goal is to offer complete engines for sale, but for now the castings are available to people who wish to build an engine for their own use and/or enjoyment.

Learn more about this remarkable feat of engineering by Richard Maheu at:
http://dynamotive.netfirms.com/merlin/index.htm



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"Only a dead 'chamber pot' is a good 'chamber pot'!"

XyZspineZyX
10-09-2003, 12:05 AM
Damn! my spit is 1/7th scale and that engine would be better than the two stroke she's got now.

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XyZspineZyX
10-09-2003, 12:06 AM
No? How about an operating 14 cylinder radial you could put in the Fw190A.

http://www.cincinnati.com/ageless/

http://www.cincinnati.com/ageless/14-cylinder-22.jpg


How about an 18 cylider radial for that Corsair, Hellcat or Jug?

http://www.cincinnati.com/ageless/18-cylinder-2.jpg



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XyZspineZyX
10-09-2003, 12:10 AM
That is just freaking awesome /i/smilies/16x16_smiley-wink.gif

rogo

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XyZspineZyX
10-09-2003, 12:10 AM
out standing !!!!!

U.S INFANTRY 84-91

XyZspineZyX
10-09-2003, 12:23 AM
go here guys for a mag on miniature engine design and construction http://www.strictlyic.com/ http://www.baemclub.com/

U.S INFANTRY 84-91

Message Edited on 10/08/0304:51PM by tenmmike

XyZspineZyX
10-09-2003, 12:40 AM
Does it do 1/4 the horsepower? Can I put it in my VW?

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T_O_A_D
10-09-2003, 01:39 AM
Very Very Cool Might have to see on getting one when running I'm a mechanic that just makes me WET!

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XyZspineZyX
10-09-2003, 07:02 AM
OMFG!!! That's what I need for my MGB!!!!!

S!

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Buzz_25th
10-09-2003, 07:22 AM
It has 25 cu in. How is that 1/4 scale? The Merlin had 1649 cu in.

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XyZspineZyX
10-09-2003, 07:33 AM
Buzz_25th wrote:
- It has 25 cu in. How is that 1/4 scale? The Merlin
- had 1649 cu in.
-

Buzz,
Remember, it's 1649 x 1649 x 1649 inches. To find 1/4th scale of that it'd be the cube root of 1649 cu in, which is 11.81 inches, divided by 4, which is 2.95 inches, then you'd cube that, which comes out to 25.76 cu in.

Hope that helps, never thought I'd use my old HS geometry again!

S! Wolf



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XyZspineZyX
10-09-2003, 07:47 AM
I love looking at engines, such works of art. My school has a whole bunch of sweet engines on display around our engineering shops, for aircraft engines we got a Continental J69, and some sort of old radial, a wasp maybe? I should take some pics some day. We also got a couple Wankel rotory engines and some other SI engine. They are all cutaways unforunatly.


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XyZspineZyX
10-09-2003, 07:56 AM
ok buzz her it goes im half drunk but my numbers work ok ...the little moter bore =1.35 stroke=1.5..............x 4 x ea= +5.4 bore 6 inch stroke......5.4 devided by 2 = (2.7)radius then square that =7.29x PI(3.14)=22.90221x stroke(6)=137.41 x 12 (no of clylinders ) approx 1648.9884 cu.in ......i can get better more precise with a better pi number but were within a cu in or so

U.S INFANTRY 1984-1991



Message Edited on 10/09/0312:19AM by tenmmike

XyZspineZyX
10-09-2003, 10:39 AM
that motor looks weird wheres the intake?but then again look at the inverted V's the BF-109 use that looks really messed uphttp://ubbxforums.ubi.com/infopop/emoticons/icon_smile.gif

XyZspineZyX
10-09-2003, 11:51 AM
zodicus wrote:
- that motor looks weird wheres the intake?but then
- again look at the inverted V's the BF-109 use that
- looks really messed up/i/smilies/16x16_smiley-happy.gif
-
-

Look at the lower right corner and you see the up-draft carb.

http://www.mcdanielrc.com/Merlin-Blue1.jpg


Buzz, did you fail math?

Bore: 5.4" x 0.25 = 1.35"
Stroke: 6" x 0.25 = 1.50"


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"Only a dead 'chamber pot' is a good 'chamber pot'!"



Message Edited on 10/09/0307:00AM by MiloMorai

XyZspineZyX
10-09-2003, 03:20 PM
Wow! How'd I miss this thread. here's a little bumpage for coolness. /i/smilies/16x16_smiley-wink.gif





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adlabs6
10-09-2003, 03:47 PM
That's pretty neat. I like that little movie of the V-8 running at the link above.

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XyZspineZyX
10-10-2003, 01:34 AM
this is such a neat little moter i feel compelled to bump it at least 1x

U.S INFANTRY 1984-1991

XyZspineZyX
10-13-2003, 03:19 PM
Wow, that's great stuff!!!

25% scale means 25% power?
Sounds like 350-400 HP, quite much for a model!!



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XyZspineZyX
10-13-2003, 03:26 PM
nice pics


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XyZspineZyX
10-13-2003, 03:42 PM
Cippacometa wrote:
- Wow, that's great stuff!!!
-
- 25% scale means 25% power?
- Sounds like 350-400 HP, quite much for a model!!
-

No, scaling factors don't work that way. Have it someplace but, iirc, it is something like the cube.


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"Only a dead 'chamber pot' is a good 'chamber pot'!"

wirraway2012
10-20-2012, 11:15 AM
cost and availability of the plans and castings for the 1/4 scale merlin engine.

Bearcat99
10-21-2012, 10:35 PM
Talk about resurrecting the dead..