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Apr 14, 2006, 04:52 AM
Tally Ho!
kusunokimasahige's Avatar
Thread OP
Discussion

Line engine for RC models. (Merlin type)


Hiya all......... Is there anyone out there who knows of the existence of line engines for R/C models? I know radial engines exist, have seen them often in the catalogues and on the internet, also Wankel engines exist.

But what I have never ever seen were line engines like the Rolls Royce Merlin
or even Pratt and Whitney in miniature, that work.......

hope to hear from you!

Kusunokimasahige
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Apr 14, 2006, 08:22 PM
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It's not that none of these were ever built, but the cost, time and complexity usually relegates these jewels to home machinist's shows etc where the engines are displayed and sometimes run, but rarely ever flown. Another consideration is that to get the actual cylinders/valves and so on working reliably, they have to be a certain finite size. End result is that such an engine (let's say a merlin) ends up being quite "large"and so the aircraft it would have to go into is also large, expensive and unmanageable. One last consideration for such an engine on a smaller scale (say a 1.2 displacement V-12) is that the operating rpm increases inversely to the scale so the engine has a relatively high-pitched unscale sound. Probably the closest real engine to what you are thinking about might be the Conely V-8's that can actually be purchased in a runable condition. If it helps, many of us have the same dream of a scale Mustang Spit or similar complete with the comparable engine to go with it. I believe that the in-flight sound of a scale aircraft is a very important part of model realism. That said, a 4-stroke twin sounds a lot like a Merlin (honest!) and a single cylinder Super Tigre, Quadra etc sounds much like a flying chainsaw; not what I would envision as scale-sounding.
Apr 14, 2006, 08:27 PM
I don't want to "Switch Now"
pmackenzie's Avatar
http://www.enginehistory.org/ModelEn...X/MerlinXX.mpg
Pat MacKenzie
Apr 15, 2006, 01:52 AM
3 cylinders or more...
Radial power's Avatar
Maybe this could interest you...

Radial.
Apr 15, 2006, 04:23 AM
Registered User
Pat that is a thing of great beauty,if you are the builder I salute you the skill involved in bringing that engine to life is amazing.
Jim.
Apr 15, 2006, 05:36 AM
i saw a strait 4 in the ripmax catolog 2006 the other day,it was an o.s.
have a look on there webisite www.ripmax.com .
Apr 15, 2006, 06:21 AM
Formerly of mcba fame
Matthew Allen's Avatar
Direct links:

http://www.ripmax.com/catalogue.asp?page=177
http://www.os-engines.co.jp/english/index.htm

If you want scale sound, try a Laser four stroke:

http://www.laserengines.com

Matthew
Apr 15, 2006, 07:31 AM
3 cylinders or more...
Radial power's Avatar
Quote:
Originally Posted by spitfire123
i saw a strait 4 in the ripmax catolog 2006 the other day,it was an o.s.
have a look on there webisite www.ripmax.com .
( )

Ok, now I want one .

Radial.
Apr 15, 2006, 07:45 AM
I don't want to "Switch Now"
pmackenzie's Avatar
Quote:
Originally Posted by jimmac
Pat that is a thing of great beauty,if you are the builder I salute you the skill involved in bringing that engine to life is amazing.
Jim.
Not mine. Someone posed the link in another forum.
I wonder if it will ever take to the air?
Pat MacKenzie
Apr 16, 2006, 10:47 AM
Tally Ho!
kusunokimasahige's Avatar
Thread OP
saw also something on clark industries , they make 25% (1/4) scale spits and hurricanes... they had two large engines coupled and put scale exhausts on them...

see pics........

however well above my budget hahahahaha...........

but dreaming is nice anyway................

btw, heres an image of my Spit... never flown it though...yet... got it on a junk market in Holland.... It has a 10cc Webra engine, which i am overhauling at the moment.... one day ill fly it.

best wishes,

KM
Last edited by kusunokimasahige; Apr 16, 2006 at 10:54 AM.
Apr 24, 2006, 04:34 AM
Fly Fast,Crash Hard
There was guy here in Australia making 4 cylinder inline engines but I cannot put my hand on the information immediately. I will search for the info

Barra
Apr 24, 2006, 11:13 PM
Fly Fast,Crash Hard
Kuso,
the manaufacturer here in Australia is Philtech & their website is located at
www.philtech.com.au
Thet make V-twin, V-Four & V-Six engines.
Hope that is some help to you.

Barra
Apr 25, 2006, 04:41 AM
Tally Ho!
kusunokimasahige's Avatar
Thread OP
They sure look nice!

i'll e mail them for a price list........

TYVM!

KM
Apr 27, 2006, 02:17 AM
try the modelclub website


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