Re: Some kind of 4 engine
 

Your question has been asked and answered, markus.
This is the engines forum, where motor heads hang out, brag a little, and answer "what is it?" questions.

This is where the real pearls of information/facts are revealed, in the side bar conversations that make an often asked question, come alive.
For instance, did you know about the OS series V engines? Only the old guys usually remember them, but know that you have been fed a pearl, and that Fox won't be the last engine you'll ever acquire.
Next time you are perusing the engines swapshop, and run across an OS 40 FSR, or 45 FSR for a good deal, you'll now know to swoop down and beat us to it.
For me, I just love it when a question I ask goes sideways and seems to take a personality all it's own.
I determine that it's a sign of respect when very experienced modelers take the time to participate in any thread I start, whatever their comments be.
To me, you were asking a "What's it worth?" question more than a "What is it"? question, as FOX is emblazoned on the crankcase.
You had two people answer you:, from $25-50.00 and others would take it for free if you sent it to them.

I hope that you will take this advice in the spirit in which it was written, that is to lighten up and listen up. I have consistently learned more from what others have posted to than to my own questions.
Best to you,

Does anyone recognize this engine?
 

Understand that the "Junk" Fox .35 engines are a living classic. Still considered by many C/L fliers to be the STANDARD by which C/L engines are judged.

It is also perhaps should hold the honor of the longest production run of any model engine....more than 50 years!!!!!

As for the Fox .40 that started all this....

It's a fine engine!!! A keen ear to set the needle and you have a motor that will outlast you!

Duke didn't enter beauty pageants...he built motors.

Good ones too.

'race

Does anyone recognize this engine?
 

some additional thoughts.....

Fox remains perhaps the ONLY company that test runs each and every motor before it is shipped. The person who tested the motor places his name on a tag attached to the engine. This guy verifys that your engine is running correctly BEFORE it gets out on the street. In a time when manufacturing processes are measured in seconds, and costs are trimmed to the penny....this is BIG TIME expensive, but assures the customer of a good product.

When someone can't get their Fox engine to run well...it's usually their own fault.

These engines were designed for the true hobbyist...not the "consumer". Folks who can't cook their own meals, fix their own car or build their own models have no business calling a Fox "junk".


Rant over.

'Race....

Yo, Race....
 

....now that the welled up tears have subsided from
that sentimental journey.... :rolleyes: ....a long repressed
nightmare of mine has reared its ugly head. I had
hoped this memory would never return, but you guys
dregged it up from the deep recesses of my mind....

....my first r/c motor was a Fox .35 r/c. I only had it
for a few months....I quickly rid myself of that worthless
piece of junk. I think it was one of those butterfly
exhaust contraptions. What a waste of perfectly good
aluminum that was....

Those cheap Fox c/l motors were made for the paper-
boys of the continent, as a first motor, not because they
were the best....but simply because they were the
cheapest motors money could buy. But yes, they did
run, in fashion....if you wanted to call it that. But the
fact of the matter is....the Foxes never did hold a candle
to the jewel-like Rossi, OS, and even the K&B c/l motors
of the period.

I traded off all my c/l stuff, by about '75. I had some K&B
.40 Torpedos (rear intake) that were sweet. I had a friend
who collected and ran Rossi c/l motors at that time. He
has passed, but his son still has 'em all....trust me....
that cheaply made, poorly cast Fox motor couldn't make
a pimple on the butt of the fine c/l motors of the day.

But then....most paperboys weren't buying Rossi's.

Ok....I didn't want to do it....but here's that last Fox
motor episode I witnessed, and a very sad episode.

This guy showed up a few years ago with a beautiful
Cessna 310 twin....about an 8 footer....spent 2 years
building it....I think he was a full scale pilot as well.

He asked me to help him out with the thing. Man it was
nice. But to my horror....he had installed 2 Fox .74's.
I would have chosen a pair of OS 1.08 FSR's, but oh well.

Gonna keep this short, it pains me so....we got the Fox's
running as best we could....talk about sick dogs, and the
plane after a long run-out....got airborne. It rose about
100 feet in the air, and completed 270 degrees of the
first turn....no speed....when one of the dogs died.... :rolleyes:

Stall....spin.....crash. Two years work, and several hundred
dollars down the drain in 20 seconds. The guy had money
too, he simply didn't know that probably the worst possible
choice of engines for that plane was the cheap Fox's.

What a shame....I still feel sorry for the guy years later.

Live and learn. :(

Well, Fly
 

well, Fly, I really never have owned an OS engine unless my Graupner/OS/Wankel .30 is made by OS. And that story about the Cessna, seems like the fault was in chosing too small engines rather than the brands fault. Fox. .74s are strong for their size. I don't have any OS engines because no other brand has given me cause to buy an OS. The Fox .15 I mentioned above is my 97th engine. I recently found a HB 120 twin I had forgotten about.

Yo, Hobs....
 

....you're the proud owner of an OS built engine....

....nice quality of manufacture, huh ?.... ;)

If you ever get a chance, pick up a .60 or .61 OS Max
FSR ringed motor....preferably NIB.... :cool:

The guy said the motors on the Twin were what it
called for.... :confused:

OS 30 Wamkel
 

It is a nice engine once you get past the fact that it weighs as much as a .60 has the power of a .40 and guzzles fuel like a 120. That said, it is a novel piece and the carb is like an on and off switch, the correct and wrong needle settings are one click apart. I like it though, it demands respect. As for buying a .61, I have brand new SuperTigre .61, a real one from Italy, a Fox Eagle .60, a Russian Zeus .61, a Merco .61, OPS .60, PAW .60, Webra .61f, 2 Webra SilverLine .61s and an Irvine Q .72, so you see, I just don't don't need another .61 unless I decide that I can't live without a MVVS .61 Diesel. I guess you can tell, I like engines. Been that way since I was 10, 51 years ago.

Does anyone recognize this engine?
 

Flyboy,
If you can't start a Fox .35 you don't need to be making comments about the quality, maintenance, and performance of engines. I think the Fox .35 is probably the easiest engine to start. Never had one even bite my fingers, never starts backward, low compression ratio and mild timing makes this an easy engine to use. Those K&B C/L engines were fine also, but would not do a 2-4-2 break out of the box, some of them would be worn out after one lean run, and you can't chop the throttle and land in C/L. I have not worn out a Fox C/L engine. Fairly safe bet to buy one on E-Bay, clean it up, and have like new compression, in fact I have done this. The Fox C/L engines have always been popular not because they were cheap but because they had good performance. The Fox Stunt .35 is still their most popular engine, and still the most sold C/L engine today. In fact it is on of the few C/L engines that will do a 4-2-4 break out of the box. You can even get an ABC engine. The latest C/L engine the Brodak .40 has a few quality control issues that Fox just doesn't have. Even for racing engines the Fox's were hard to beat. The Fox Mark series were the combat engine to beat till shortly after Duke died and Nelson's became competitive.

Admittedly the Fox carbs are a bit quirkey, but manageable if you follow his directions, including tapering the needles. This was not a quality control issue but a lack of refinement of design. Outside of the carb the rest of any Fox engine is top quality. They may not look it due to a lack of a fine finish, but the castings are also of good quality, when you don't finish them, or polish the castings in a drum, the flow lines where the metal flowed into the mold are evident. The bead blasted finish's of most engines hide this. Note the newer Fox engine's use the same finishing technique of a weed eater, not a Nova Rossi, or Jett.

Does anyone recognize this engine?
 

Fox's were not and still not cheap. You can spend less on other engines. I think a Fox .46 is over $100 discounted. But only Rossi's, Jets, and Nelson's are more powerfull. New twin needle carb should solve all tuning issues with that engine.

Yo, Sport....
 

....straighten out your knickers, Dude.... :eek: ....

...." Flyboy, If you can't start a Fox .35 you don't need
to be making comments about the quality, maintenance,
and performance of engines."

I said the other fellas couldn't get the Fox's running.

Wow, did Fox come out with a double needle carb ?
Running about 30 years late, wouldn't you say....

I sure hope they get those "tuning issuses" fixed. :rolleyes:

Does anyone recognize this engine?
 

Flyboy,
Duke's designs were 2 needle and 3 needle carbs. A bit trickey to tune, but with the right nitro don't need much adjustment after that. After he died they went to an unusual air bleed type that had a metered midrange. If the midrange was right for the conditions they ran great, if not there was no way to adjust the midrange except to file the midrange port in the barrel. The new carb is similar to the older MKX twin needle which worked fine.

Does anyone recognize this engine?
 

Mike Bogh,
Got that Nobler yet? I understand they are real light. So much a Fox .35 should work fine. I would consider the ABC version though. What are you gonna put in it?

Thanks Sport....
 

....for the clarification....I'm sure them boys will get
those carbs straightened out....

....enjoy your engines.... :)

Dave. :)

Does anyone recognize this engine?
 

Why I'm going to put a FOX 35 in it, what else?
Gotta have that 4-2 break, donchya?
And, no I don't have it yet, the Funtana whacked the budget for another month.

Does anyone recognize this engine?
 

I have a fox 40 bushing like the one pictured. Purchased in the early 80's (new). It is still going strong. The carb on mine is a barell type very similar to most of todays carbs. It does mount differently tho. I have a Fox pipe header for it and use a macs muffled pipe. It is not installed now so I have no numbers to give. I won't give this one up. It runs great!

ZB

Does anyone recognize this engine?
 

Hey ZB...

I have a Fox "Super Muffler" adapted to a mac's header. Man...that thing is insane!!!!!!!

So...you got 20years on yours? That's nothing....I'll bet these Chinese engines are still running strong after what?

Oh wait....I confused them with quality.

Sorry.

Fox Rocks!


'Race

Does anyone recognize this engine?
 

Oh wait....I confused them with quality.

Actually I don't think anybody really makes a bad engine anymore. I have some ASP's. Fine engines, I suspect they will last a long time. Got rid of my last OS a year ago. Never used it cause the Thunder Tigers made better power.