Extreme Speed Prop Planes Discuss the need for speed with fast prop planes (Screamin Demon, Diamond Dust, Shrikes or any REAL sound breakin'''' plane)

What is an OPS motor?

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Old 01-07-2007, 04:36 PM
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Julian537
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Default What is an OPS motor?

I have heard an OPS motor mentioned a few times here in the speed forum.

What is it and how do they perform?

Are they still available today?

I have seen them occasionally on ebay, but they are rare.
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Old 01-07-2007, 04:52 PM
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Default RE: What is an OPS motor?

They are a brand, mostly marine(boat) applications, very good performers back in the day.....
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Old 01-07-2007, 05:12 PM
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Default RE: What is an OPS motor?

Hello Julian537,

Please check out the following thread. Much has already been explained there.

http://www.rcuniverse.com/forum/m_48...tm.htm#4883651

If you are talking about the OPS .60 Super SPP VAE (below pictured), this is a potential world record holder for the FAI 10 cc speed class. Last year 2006, one of the German Speed-Cup participants already broke the World Speed record (inofficially) using this engine.

Currently no .60 engine available outperformes the output of the multiple ported RIRE goldhead by OPS. Maybe in future a new 10 cc competitor will dispossess the OPS from the crown.






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Old 01-07-2007, 06:25 PM
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Default RE: What is an OPS motor?

ORIGINAL: I-Love-Jets
I have a NIB 60 with a NIB pipe (front carb). Are those kits obtainable here in the US?
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Old 01-07-2007, 07:04 PM
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Default RE: What is an OPS motor?

Hello Cyclic Hardover,

the front intake OPS .60 engine unfortunately will not be suited for serious speed application, because this is the “torquey” version of the goldhead. Meaning that is the pattern version, which comes with very different liner and intake timings and moreover a too restricting front intake passage.

As for these purpose built speed planes, I believe kits only are made for those speed flyers who intend to compete here in Germany. Presumably only a handful are made within a year at the utmost. So I suppose people from other countries have to make their own (different and better) designs.

Good 15 cc ducted fan engines seem to be a little “faster” than these 60 OPS VAE (identical airframe provided), but unfortunately anything exceeding 10 cc of swept volume is not allowed for setting a FAI speed world record. BTW, it turned out that the ultrahot +30000 rpm MB .40 PROFI pylon engines are “slower” than the OPS VAE for straight line speed application.
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Old 01-07-2007, 09:05 PM
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Default RE: What is an OPS motor?

There was a used OPS 60 RIRE ebay last week. I almost had it.....got sniped (out bid) at the last second[:@] Guess I'll just have to suffer with the next best thing.......
OS 46 VX DF's
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Old 01-07-2007, 09:43 PM
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Default RE: What is an OPS motor?


ORIGINAL: I-Love-Jets


. So I suppose people from other countries have to make their own (different and better) designs.
I don't know about that , your designs are pretty darn good.
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Old 01-07-2007, 09:49 PM
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Default RE: What is an OPS motor?

I take it that the OPS .60 Super SPP VAE is to run only FAI fuel (no nitro) ?
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Old 01-07-2007, 10:29 PM
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Default RE: What is an OPS motor?

One question has still not been answered....

Are these motors still made today?
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Old 01-08-2007, 06:03 AM
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Default RE: What is an OPS motor?

No... and that's a damn shame. OPS used to make a bunch a great engines. They were no featherweights, but they were powerful, well designed and very well built engines. They just got muscled out by the asian low-budget companies.
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Old 01-08-2007, 10:51 AM
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Default RE: What is an OPS motor?

I think Picco hurt OPS sales allso, rumored a engineer from OPS started Picco, (lots of similarities) I bought a new Picco 90 Marine when they first came out for 125.00 shipped to my door, a stump puller, I was paying 279.00 at the time for OPS 67 Marine engines, pic is my Picco 90 Modified Thundergator mid 80s.
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Old 01-08-2007, 11:02 AM
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Default RE: What is an OPS motor?

Hey freakingfast where you getting the shortshaft prop adapter nuts from?
ORIGINAL: freakingfast

There was a used OPS 60 RIRE ebay last week. I almost had it.....got sniped (out bid) at the last second[:@] Guess I'll just have to suffer with the next best thing.......
OS 46 VX DF's
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Old 01-08-2007, 11:44 AM
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Default RE: What is an OPS motor?

THE OS .46 VX-DF engine is a very good performer and it develops similar HP to the discontinued Rossi R53 DF. Also the OS .46 is much more user friendly than the OPS.

An adapter prop nut, which extends into the the prop hub to compensate for the very short crankshaft, can be purchased at TruTurn. Thread dimension is ¼-28.

The OS .46 VX will turn the APC pylon prop 8.75x9.5NN at about 20000 rpm at the ground.

The OPS OPS 60 VAE however should not be used with this propeller, because this engine already is too strong even for this heavy duty D1-series propeller. So you have to use a carbon fiber propeller if applying the OPS 60 VAE or a .90 ducted fan engine.
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Old 01-08-2007, 12:22 PM
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Default RE: What is an OPS motor?

If I remember correctly Picco is the "P" in OPS
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Old 01-08-2007, 12:41 PM
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Default RE: What is an OPS motor?

ORIGINAL: bob27s

If I remember correctly Picco is the "P" in OPS
That's what I heard as well, although I cannot attest to the accuracy of that statement.

The pictures of the RIRE OPS 60 make me drool. After the other thread about OPS 60's, I dug my FIRE version out of the engine drawer and fondled it some more. I remember when I cleaned it up about 5 years ago, i.e. disassembled and ultrasonic cleaned everything that had accumulated over a couple of seasons of use. I reinstalled it in the old Cass Pulsar Bipe it was in (oink.. 8 pounds.. oink) , fueled it, choked it, and first hand flip it kicked off in that beautiful sewing machine idle it always had. Yes, other engines will do that too, but this one always impressed me with its manners and power.

I haven't got to playing with pipes and props on it as mentioned in that other OPS thread, that can wait until spring i.e. no mud and frigid temps. But maybe then I'll do some tweaking and get some numbers.

That RIRE on eBay went for some good coin the other day..
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Old 01-08-2007, 01:15 PM
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Default RE: What is an OPS motor?

Does Picco make any airplane engines?
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Old 01-08-2007, 01:28 PM
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Default RE: What is an OPS motor?

CH:

If you just gotta do this thing (build your own go faster) I will loan you my 8 port OPS monster, CF prop and pipe that scares heck out of me. There are some guys in Germany that still hop these thing up and keep them running, where I got mine. Its a very little "Thank you for your service" thing, please do not be offended. Send me a PM if you want to play. Bro 119, former E-5@101.
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Old 01-08-2007, 05:43 PM
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Default RE: What is an OPS motor?

ORIGINAL: Julian537

Does Picco make any airplane engines?
Yes, PICCO made a bunch of aero speed and ducted fan engines in the 80s and the beginning of the 90s. After that era, these well made engines sadly discontinued.

I’ve added only the high performance types, although Picco also made some FIRE and FISE sport (pattern) engines.

So here’s the little but beefy 2.5 cc PICCO P15:
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Old 01-08-2007, 05:45 PM
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Default RE: What is an OPS motor?

Now the famous PICCO .40 Pylon, a dominator of the mid 80s pylon scene:
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Old 01-08-2007, 05:47 PM
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Default RE: What is an OPS motor?

Here’s the radical PICCO .60 SPEED, winner of the German Speed Cup in year 1988 (true 225 mph) and almost as strong as the OPS .60 VAE:
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Old 01-08-2007, 05:49 PM
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Default RE: What is an OPS motor?

The PICCO P65 and the P80 Ducted Fan engines:
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Old 01-08-2007, 05:53 PM
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Default RE: What is an OPS motor?

And finally the big block, the PICCO P90 Ducted Fan engine:
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Old 01-08-2007, 06:02 PM
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Default RE: What is an OPS motor?

How does the BVM .91R compare (power and weight wise ) to the above engines? It's made by Nelson, right?
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Old 01-08-2007, 06:23 PM
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Default RE: What is an OPS motor?

Thanks for all the Pics "I love Jets"
You have a fine collection there. How does the Rossi 65-81 DF motor and the BB rossi 90 Aero DF motor compare, if they compare at all?
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Old 01-08-2007, 09:10 PM
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Default RE: What is an OPS motor?

Did you all notice the size and location of the aileron on those things?
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