bikerbc

I am curently Building a 1/4 Scale Balsa USA Cub and am having a hard time deciding on what to power it with..I want to use a gas engine..I was going to use a DLE 30 but my buddy just put one on his 1/4 scale ARF Cub and it is way over powered in my opinion..It is tearing the blind nuts etc out of the firewall after only three flights..I have a DLE 20 on a Seagull 120 spacewalker and I think that would be a better match..I might fly off floats so I dont want to under power either...I was thinking maybe the Zenoah G26 although I am not sure it has any more power than the DLE 20...I am fairly new to the gassers so any inputt will be apreciated...I mostly enjoy flying in a scale like manner..I like to be able to do loops and rolls and hammer heads but I am not expecting to hover or get unlimited vertical etc..I have a 1/3 scale BUSA Cub on floats with a G62 in it and it is a very good match...I would like a similar match for my 1/4 scale Cub..Thanks Ken

Fleet

I powered my Balsa USA Cub with a OS 91FS on C&H ignition.   I loved the realism and sound.  

tjones1

I have a 1/4 Scale Sig Cub and suggest a 150-180 size 4-cycle engine.

Jacque

My Feedback: (22)

A G 26 is a fine eng. for that plane

lazyace

My Feedback: (126)

a os 160 twin is the best and sounds great

bikerbc

Thank you for your replys..I am only looking for gas motors..I want the economy..I have several glow engines that would do the job and I do agree that the sound of a four stroke would be nice ,especially a twin but I want to try a gas...I dont think they make a four stroke gas motor.that would be nice..I really dont like the sound of the two stroke gas..They are loud and smelly but they run forever on a tank of gas and the gas is cheap compared to glow fuel...

vertical grimmace

My Feedback: (1)

How about a G38 mag engine with spring starter? I think a club member has this combo and it is very easy and performs great.

jeffo

My Feedback: (68)

My flying buddy bought my 1/4 cub from me,and put a g26 on it and the plane came to life,I had a O.S.120 f.s.-it flew fine,but did not like to roll.With the G26 simple aerobatics are a breeze.-jeffo

Top_Gunn

My Feedback: (6)

Yes, except that it won't fit inside the cowl.

s3nfo

My Feedback: (14)

DLE-20 on my BUSA 1/4 L-4 and it fly's very scale at less than half throttle. Friend has an old, tired G23 on a 1/4 scale Cub, which has less power than my DLE-20 powered L-4 and he fly's it on floats no problem.

3136

There are a few 4 stroke gassers, most are European & terribly dear.
The Chinese are just starting to get into that area, the second version of the NGH38 4 stroke is out now.
http://www.amr-rc.com/index.php?path...1821&langue=en
I would wait for feedback on the new version before a purchase though, (hopefully they sorted out the problems)
There is a thread on it  here http://www.rcuniverse.com/forum/m_11...mpage_2/tm.htm

acerc

RCGF 26cc in my Sig 1/4 scale Cub.

SunDevilPilot

One of my favorite motors is a Zenoah 20. All of them run really good. The 20 will fly your Cub but I would go with the Zenoah 26. I own a 26, electronic ignition, and it is flawless.

I dont want to debate motor brands but I will say, in my opinion, Zenoahs are some of the most reliable and smooth running motors. Once the motor is broken in and the needles are set you are in for a lifetime of use. I also own a DA50 it runs good, just not as perfect as my Zenoahs.

SunDevilPilot

Jerry-RCU

My Feedback: (3)

Hey Jerry

Did you paint on your stars and stripes or are they decals.. They look good in picture... If I'm bothering you just
let me know and I'll stop.. It has been a while since I have built a air plane.. Since the ARF have came available...


Thanks Jerry Brown


this is a stock built-ed cub that a friend started that I am converting to a L-4

dadragon

got a 1/4 sig a G-23 and floats is more than enough engine I fly scale not 3D. 21lb plane.

s3nfo

My Feedback: (14)

No bother at all Jerry,

The white N numbers below the horizontal stab are decals, everything else is paint.

Jerry-RCU

My Feedback: (3)

I forgot to post a finished picture back in the day let me find one and post it.. Turned out great very happy with my L4 cub..

pancake

My Feedback: (2)

Is a us 41 too much engine for this kit?

s3nfo

My Feedback: (14)

Yes

Truckracer

My Feedback: (19)

Not too much power but way too much weight and bulk. If going gas I would use one of the more modern, compact and lighter weight engines available these days. The DLE 20, 30 or 35 are common examples and all fit with ease though you will have to relocate the firewall back a bit. Weight is about right for normal balance.

dweb4

My Feedback: (1)

Hello, I know this may not be the correct thread but in need of some help. I have a 1/4 Bulsa USA Cub, and the original gear is broken. I'm looking to upgrade, looking for a Robart Balsa landing gear 690B. If you have one in good shape, please let me know.

khodges

My Feedback: (1)

A G20 is plenty of scale power, if you can find one. G26 is perfect, turn a scale diameter prop (18"). Anything larger is more power than needed for scale flight. This plane has a ton of wing and doesn't need much to keep it in the air. The smaller scales will fly on practically nothing. I flew my 1/5 scale L-4 on a .65 Saito and it was more than needed. A .56 is sufficient.

S3nfo and Jerry, what did you use to convert the BUSA J-3 to a L-4? Did you use pictures and work out your own conversion for the greenhouse, or did you go by the L-4 conversion plans from BUSA? I haven't built or flown anything in ten years and sold all my gear and built planes. I still have a 1/4 scale BUSA J-3 kit that is over 20 years old, and I have the L-4 conversion plans that BUSA had available. I also have the 1/4 scale Robart gear, a fiberglass cowl and dummy engine kit. Now that I'm retired, I've been thinking about dragging this out and building it, super detailing it. I have over 100 pictures of Cubs and L-4 details, many from the restored planes shown at Oshkosh over the years.

I once built a 1/5 scale Sig J-3 kit and converted it to a L-4, with the greenhouse and 1/5 scale Robart gear, and even made a couple of scale bazookas to mount on the wing struts. You can see pics in my gallery.

s3nfo

My Feedback: (14)

BUSA used to make a L-4 kit and my first one was made from the L-4 kit. Lost that one in a mid-air with a Spitfire at the Castle fly-in a couple years ago. I recently found another untouched BUSA L-4 kit and snapped it up. Plan to get to it in the very near future.

David Gladwin

s3nfo

My Feedback: (14)

Sorry David, I'm a purist, the 160 sticks out the sides of the cowl and doesn't look scale with either just the 2 OS cylinders or 2 OS cylinders and 2 dummy cylinders.
Perfect engine for a 1/4 scale Cub is a DLE-20 Completely enclosed and plenty of room for a Top Notch dummy Continental engine kit.