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

Imangine a 1/2A size Shrike with THIS engine

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Old 05-18-2011, 03:39 AM
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Default Imangine a 1/2A size Shrike with THIS engine

This little engine rocks, check out the RPMs
http://www.youtube.com/watch?v=8vxwm...1&feature=fvwp

So, imagine a tiny Shrike or Diamond Dust with this on it

Very cool
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Old 05-18-2011, 05:23 AM
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Default RE: Imangine a 1/2A size Shrike with THIS engine

Decent power but not unheard of. But it is throttled which is way cool, and a nice engine indeed all round. If you skip the throttle function a Profi or similar .049 or .061 combat engine will blow it away on top end. For $150 a pop..

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Old 05-18-2011, 07:54 AM
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Default RE: Imangine a 1/2A size Shrike with THIS engine

The throttle is pretty sweet though.
I'd love to have that little gem.
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Old 05-18-2011, 08:24 AM
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Default RE: Imangine a 1/2A size Shrike with THIS engine

For sure! In terms of a throttled 1/2A those numbers are great.

I have a few VA's including one MkII RC (sweet engine too), but last year I bought a Profi .061 just to see what they were all about. Holy crap - first run on one of Larry Driskill's combat props (5 x 2.5? 5x 2.75? I forget), rich on 15% fuel, 34k. Quick rich run on a 4.25 x 5.5 1/2A speed prop about 30k - pitch speed 156mph without factoring in unloading (getting there is another story of course).

Hot 1/2A engines are totally cool.
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Old 05-18-2011, 10:25 AM
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Default RE: Imangine a 1/2A size Shrike with THIS engine


ORIGINAL: MJD

For sure! In terms of a throttled 1/2A those numbers are great.

I have a few VA's including one MkII RC (sweet engine too), but last year I bought a Profi .061 just to see what they were all about. Holy crap - first run on one of Larry Driskill's combat props (5 x 2.5? 5x 2.75? I forget), rich on 15% fuel, 34k. Quick rich run on a 4.25 x 5.5 1/2A speed prop about 30k - pitch speed 156mph without factoring in unloading (getting there is another story of course).

Hot 1/2A engines are totally cool.
Yes, but where do you get them? These engines seem to be unobtanium. I am in search for an .049 for CL combat. I think I would prefer a Fora. Any ideas? Also forget about Mr. Cleveland, I will not waste my time with him.
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Old 05-18-2011, 11:55 AM
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Default RE: Imangine a 1/2A size Shrike with THIS engine

Id like to know the mods he did to that Pico, if he did any....?
Anyone else try running props on small car engines? I have a .12 OS somewhere around here from and old Kyosho buggy tat ran pretty sweet. Just can't remember where I put the $%#@ thing. I'd give 'er a try once I find it.
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Old 05-18-2011, 01:13 PM
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Default RE: Imangine a 1/2A size Shrike with THIS engine


ORIGINAL: vertical grimmace


ORIGINAL: MJD

Hot 1/2A engines are totally cool.
Yes, but where do you get them? These engines seem to be unobtanium. I am in search for an .049 for CL combat. I think I would prefer a Fora. Any ideas? Also forget about Mr. Cleveland, I will not waste my time with him.
[link=http://www.flycontrolline.com/Profi%20049%20.8cc.htm]Profi 0.8cc / .049[/link]

I only know of GRS for Fora engines.
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Old 05-18-2011, 03:58 PM
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Default RE: Imangine a 1/2A size Shrike with THIS engine

I need to fire up my Profi .15 just to hear it, all I need is some surgical tubing for a tank, know where i can get the right stuff for this application?
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Old 05-18-2011, 04:40 PM
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Default RE: Imangine a 1/2A size Shrike with THIS engine

Here is a "Shrike-ish" .061 powered plane.

1/4" thick sheet balsa wing, about 125-150 square inches

Cyclon engine

12-14 ozs RTF
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Old 05-18-2011, 05:00 PM
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Default RE: Imangine a 1/2A size Shrike with THIS engine


ORIGINAL: MJD


ORIGINAL: vertical grimmace


ORIGINAL: MJD

Hot 1/2A engines are totally cool.
Yes, but where do you get them? These engines seem to be unobtanium. I am in search for an .049 for CL combat. I think I would prefer a Fora. Any ideas? Also forget about Mr. Cleveland, I will not waste my time with him.
[link=http://www.flycontrolline.com/Profi%20049%20.8cc.htm]Profi 0.8cc / .049[/link]

I only know of GRS for Fora engines.
Like I said..unobtainium. I have tried fly control line for years and they say they are trying. Maybe I will have to go to the MECA convention and twist someones arm to part with one. The thing that sucks, if you want to compete in 1/2 A CL combat nationally, you have to have one of these new powerhouses.
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Old 05-18-2011, 07:58 PM
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Default RE: Imangine a 1/2A size Shrike with THIS engine


ORIGINAL: smoknrv4

I need to fire up my Profi .15 just to hear it, all I need is some surgical tubing for a tank, know where i can get the right stuff for this application?
I have a few feet of 1/8", that will get you running. I don't fly bladdered .15's but I figure they use 5/32" or 3/16".

[link=http://www.kittingittogether.com/bladdersfuel-lines/]Surgical tubing[/link]


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Old 05-19-2011, 09:00 AM
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Default RE: Imangine a 1/2A size Shrike with THIS engine


ORIGINAL: vertical grimmace

Like I said..unobtainium. I have tried fly control line for years and they say they are trying. Maybe I will have to go to the MECA convention and twist someones arm to part with one. The thing that sucks, if you want to compete in 1/2 A CL combat nationally, you have to have one of these new powerhouses.
I can imagine. I bought one just because I wanted a small killer engine in my collection.

It comes down to the fact that the materials cost diff between an .049 and a .15 or .40 isn't much and as such, materials are not the main cost driver. It's machine time and labour, and if anything small engines are tougher to make than large engines. Plus, the demand is so small in comparison to regular sport engines production is relegated to a few specialty shops.

If there was a widely available 1/2A engine from a rock solid source, you could make a case for a one engine event. i.e. if TD's were still all over the place, or Norvels. But for all out competition, you can get anything you want - just add money.


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Old 05-19-2011, 12:12 PM
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Default RE: Imangine a 1/2A size Shrike with THIS engine

The event has essentially remain unchanged since it's inception. The only change was a few years ago the line length was increased from 35' to 42'. THis is because the new engines are so powerful. These aircraft look like they are powered by .15 now. You would not think they were an .049 if you were to walk up to someonone flying a modern 1/2 A. Even small increases in power at this size, effect your design philosophy for competition aircraft. More power= more plane. Which means they turn tighter. I have a very high performance design with a hot AME, but it would not stand a chance on 42' lines and the screaming Foras or Cyclones.
Money is not really the issue. It is availability. This makes them worth quite a bit honestly. I just need to find someone willing to part with 1 or 2 of them.
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Old 05-19-2011, 01:04 PM
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Default RE: Imangine a 1/2A size Shrike with THIS engine

I never asked about the .049s, are the Profis out of stock?
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Old 05-19-2011, 04:24 PM
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Default RE: Imangine a 1/2A size Shrike with THIS engine

I have not been able to locate one
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Old 05-20-2011, 11:39 AM
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Default RE: Imangine a 1/2A size Shrike with THIS engine

Reminds me of my Norvel .074 that I need to build a plane for.
Brand-new engine, never been run.
I don't think it will turn high enough rpms for a speed plane, was thinking a 1/2a size Kaos.
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Old 05-27-2011, 01:29 PM
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Default RE: Imangine a 1/2A size Shrike with THIS engine

That conversion was done by AndyW and if you want a high revving engine the C0x .010 is hard to beat as my one does 33000 rpm
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Old 05-28-2011, 09:21 AM
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Default RE: Imangine a 1/2A size Shrike with THIS engine

A 3x1.25" pitch prop at 33k is good for a blistering 40mph at best. An .010 is of little use in a 1/2A aircraft or anything you want to fly fast.

Any Kaos I have seen has a very thick wing (15% or more) and they are not considered "fast" per se. Sure, a .40 or ,60 Kaos with a strong engine will move "quickly", but that wing is designed for aerobatics and to to keep speed under control during down lines. But copy the planform of a Kaos with an 8-10% think wing and you would have a much zippier sport aircraft. And thin the fuselage cross section down to the minimum to fit the equipment you plan to use.
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Old 06-13-2011, 10:55 AM
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Default RE: Imangine a 1/2A size Shrike with THIS engine

Thats true but on a 6 inch wingspan bipe it seems pretty fast.
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Old 06-13-2011, 01:44 PM
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Default RE: Imangine a 1/2A size Shrike with THIS engine

I'll bet it does!
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Old 12-01-2011, 03:18 PM
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Default RE: Imangine a 1/2A size Shrike with THIS engine

I haven't done business with them , but hobbyclub.com shows to have the Profi and Fora in stock. I was able to get one(Fora.061) from George Cleveland about a year ago, But I'll admit I was a little nervous making the transaction and felt like there might have been some "fibbing" about the ship date based on the postmark. I AM very happy with the engine though. I'll admit that of about 10 runs none of them has been in the air yet. Todd
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