We no I forgot about the Saito .40. I think someone mentioned Saito. Its cheaper than the OS and lighter.

http://searchrc.horizonhobby.com/ind...=5250+796+8053

The Evolution .455 PTS is an excellent engine for $79.99. It weighs 19.5 oz and the Towers muffler fits. Easy to tune, easy to run. Good fuel economy and great on the power.

My vote is for the OS 46LA which is a plain bearing engine with a little less ooomph than a ball bearing engine of equal displacement. I think it would be good in the Clipped wing cub. I have one of those in my Sig kavalier and have put about 160 flights on it over the last two years. The engine is easy to start, runs strong, and is very reliable.

Tom,

If you don't want to spend the money on a 4 stroke, we understand. They are expensive.
So if you do go with the 2 stroke I would agree with most of the other people here that a plain bushing engine like the OS.40 or the TT GP.42 would be a good choice.
BTW Tower Hobbies is now offering $25.00 off of an order of $199.00 or more.

Tim

I was looking through my work shop and came across an engine that I didn't even know I had!! It is an OS 40LA that I bought a few years ago and TOTALLY forgot about!!! It is new in the box and has never been run. Well, I guess I'll just have to use it in my new Cub!! Thanks again to all who replied with all your suggestions!! If I hadn't found this one, I was leaning toward the 46LA. This worked out pretty good after all!!!!

G'day again. I am agreeing with madtrev again. I have two Goldberg Anniversary Cubs similar to the model you are talking about. One is quite old and has had several engines. The other is about 12 months old and has had only one. You asked about Saito. If you have the cash I would say a definite Yes. And if you don't, they are well worth saving for.

Like Trev, my most used engine is an 8 year old FA-56 which has been in constant use during that time. It starts easily, runs brilliantly and is a nice size for 40 class models. It is also fairly light for its power output. Most of my other engines are Saitos too so you won't get any complaints about Saitos from me. My quarter scale Hanger 9 Cub has a Saito 120 in it which flies it really well with plenty in reserve. It has a TurboHeader muffler on it which makes fitting the muffler mostly inside the cowl easy. If you search this site you will find them.

My older Cub started out with an OS 70 Surpass. It flew well but was very un-scale like. The 70 was too powerful and too heavy but it was fun for a while. Next I tried an OS 52 Surpass. This was fine. Plenty of power in reserve but happy to plod around. I tried an OS FS 40 next (the old model from about 1980). It would fly the model but was very scale like for a J2 and had nothing in reserve. Next came an OS 40 Surpass. As it was new, it was still running in but it just did not have enough to give a margin for tuning error. An ASP 52 and then an ASP 62 were next. Very similar results with the 61 being slightly more powerful. Both were fine. They are very similar in size and weight. These days it has an OS 52 again and flies well with it. At one stage it had a very old Enya 46 and this was OK but a little undernourished.

My latest one has a Saito twin. There are two Saito twins suitable for medium size Cubs - the 60T and the 90TS. They were both designed for the job. The 60T was my first choice and was designed for normal land based planes. The 90TS has a bit more power and was designed for float planes or for Clipped Wing Cubs. The Clipped Cubs had slightly more powerful engines so they were more aerobatic and flying off water needs a bit in reserve. I bought the 90TS because I could not get a 60 and I am very pleased with it. It flies the Cub really well and sounds great.

The photo is the Goldberg Cub with the Saito 90TS about to land. It will eventually get a more scale like exhaust and undercarriage.

Off topic: But mike 109, your picture is the perfect picture of how to properly execute a cross wind landing. Light on the ailerons and medium rudder input. Obviously you are an experienced cub driver. I will be saving your photo and with your permission using it in the beginners forum when that question comes up every month or so.

G'day

Actually I am a mug flier who has a radio with mixing. I noticed what I had done and wondered if anyone would also notice. I have three Cubs and I have noticed that they like some rudder in turns I had this one set up with a fairly high percentage of aileron to rudder mixing (with a defeat switch). It was only its second flight when the photo was taken. Feel free to use the photo. I can send you a bigger (higher resolution) copy if you want to PM me.

That's all good, I understand, but it far more common than that. Sorry not to jump on you, but I thought the reports were more well known. With the frequency of issues I found in just a little research, and having encountered it first hand on the one and only example I handled, I think it is a bad gamble. I would ignore one report same as you might, sure, and chock it up to a random flaw. It's a batch or QC problem, not just one guy with a C-130 having troubles. Sorry if I sounded pissy, I wasn't meaning to be, but I was trying to stress that when a bunch of people have trouble with one product, add the number of people who you haven't heard from for a variety of reasons [which is always the case with consumer feedback], and you have what I define as an unacceptable quality control issue and a bunch of bad engines out there. I know a bunch of folks have not had problems - but that does not make it a good product. It's a great deal if you can buy it cheap and don't care about having to repair the carb if it bad - the engine runs like a top otherwise and lots of power.

MJD

The truth is, just about any glow or Diesel model engine that runs reliably and has a displacement between .32 and .91 C.I.D. will fly the CGM Cub reliably and well. It simply depends upon the flight performance that you are seeking as to how much engine you need on the nose. I have flown CGM Cubs with .40 thru .91 four-strokes and with .40 thru .61 ABC two-strokes. If you have ever owned a hot .32 two-stroke, you know that they will swing an 11x4 prop with ease, which will easily fly a CGM Cub.

Now, if you really want to have some fun, install an OS or Sanye (ASP/Magnum/SC) .32 glow engine. Fit said .32 glow engine with a Davis Diesel Development conversion head and fly a day's worth of flights on a single 16 ounce tank. You take your model, your R/C transmitter and maybe a spare prop to the field and nothing else for an entire day's worth of flying. How's that for compact? Tell Bob that Ed sent you.


Ed Cregger

Kestrel0222
I sent you a pm

Are there any distributors here in the US that carry these engines?

Thanks,

Tom

Fancy anodized colors always make me suspicious, like it's the only thing an engine has going for it. I know that is not true in all cases, but I can't help thinking of the old adage about no matter how much whipped cream you pile on a plate of dog crap..

There is little magic in the model engine world, we seem to have the choice of paying a lot less and taking a gamble that sometimes wins, or paying a bit more for security and reputation. Nobody has miracles to offer. Just cheap labour, the same basic engineering principles, and whatever level of value and quality control they choose to apply to their product. Caveat emptor.

The world of clone/near clone sport engines would be less scary if there were not still persistent examples of plain old bad quality and/or inconsitent quality control. The same **** that plagued off-brand engines twenty years ago is still with us, though a few survived by getting their act together to some degree.

MJD

Great job of writing this! Bob

My first Twin Star had OS 40-FP engines, my second had Thunder Tiger 36 engines and my third was a volter with AXI 2820-10 motors.

I recommend the T.T. 36 engines for glow, I've used them on 3 twins and in combat planes, never a complaint, Powmaster 15%.

For the "safest" twin I recommend going volter, no engine-outs.