How to build smoke exhaust system on your RC Air plane

In this video we will show you how to make a thick white smoke trail after your RC Air plane.
I have a Calmato Sport 40 with SC(Magnum)46 2 cycle engine and the Du-bro Super Smoker valve DUB255.
http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXD625

Whith the 2 cycle engine I get airpressure to the oil tank from the crankcase back cover. And inject the oil on the exhaust "header".
The valve closes both lines in and out.
I Also use preheating from the sylinder top + heat insulating tape around it.

If you have a 4 cycle engine you dont have overpressured crankcase.
But there is two other options: The venturi effect http://www.rcdon.com/html/the_ultimate_project.html
or smoke oil pump like skywriter.
http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXDES4
(you don't need the dubro valve then)
BUT.. in corcholato's case he actually did get his 4cycle engine to smoke by the 2 cycle prinsip.
Thick smoke is depended on evaporating efficiency.
This can make it better: hotter exhaust gas, higher oil temperature, higher oil pressure, higher nozzle spray efficiency.
For best performance, use Smoke oil http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXAN64&P=ML
You can also use diesel, but will produce less smoke.
The result with diesel is http://www.youtube.com/watch?v=nPdVIf2kpv8
from Lie Airsport RC in Skjold.

TIPS!
1/2 price on MAGNUM / ASP / SC glow engines, with easy Paypal payment from Hobbyking with world wide shipping:

Two stroke.
ASP S21A http://www.hobbyking.com/hobbycity/store/uh_viewItem.asp?idProduct=8990&P...
ASP S52A http://www.hobbyking.com/hobbycity/store/uh_viewItem.asp?idProduct=8989&P...
ASP S61A http://www.hobbyking.com/hobbycity/store/uh_viewItem.asp?idProduct=8988&P...
ASP 108A http://www.hobbyking.com/hobbycity/store/uh_viewItem.asp?idProduct=8987&P...
ASP 120AR http://www.hobbyking.com/hobbycity/store/uh_viewItem.asp?idProduct=8986&P...
ASP 180AR http://www.hobbyking.com/hobbycity/store/uh_viewItem.asp?idProduct=8982&P...

Four stroke.
ASP FS61AR http://www.hobbyking.com/hobbycity/store/uh_viewItem.asp?idProduct=8985&P...
ASP FS91AR http://www.hobbyking.com/hobbycity/store/uh_viewItem.asp?idProduct=8984&P...
ASP FS180AR http://www.hobbyking.com/hobbycity/store/uh_viewItem.asp?idProduct=8983&P...
ASP FS400AR http://www.hobbyking.com/hobbycity/store/uh_viewItem.asp?idProduct=8981&P...

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Category:

Howto & Style

Tags:

• RC
• air
• plane
• smoke
• trail
• engine
• oil
• valve
• skywriter
• pump
• du-bro
• dubro
• super
• smoker
• diesel
• cycle
• learn
• model
• build
• exhaust
• glow
• motor

[vanepico]

won't putting a hole in the back of the crank case remove all the fuel pressure? I have an old MDS38 i want to fit a smoke system to...

[LieAirsport]

It works for me. You should try...

[caricioplanor]

fratilor, a inteles careva de unde scoate asta presiune pt rezervorul de motorina?

[LieAirsport]

I´m not that good in Romanian language... ;)

If google translate is right, you ask where the pressure comes from?

At 0:29 you see that Oil tank pressure comes from crank case.

Fuel tank pressure comes from muffler as normal.

Hope that helps.

[atvmaster281]

Whats the name of the song?

[LieAirsport]

Heard of the word Please? have you not?

I dont know the song name. It's in YouTube AudioSwap.

[robprestonful]

is there another alternative for smoke oil? other than baby oil, diesel or the Super dry smoke oil?

[soverato3]

my engine smokes better witout this system

[caricioplanor]

multumesc pentru ajutor, vad ca sti romana.

sper sa nu stric motorul daca dau o gaura in carter

bafta

[LieAirsport]

thank you man!