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

Q-500 versus Diamond dust

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Old 09-28-2004, 06:33 AM
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growingupisoptional
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Default Q-500 versus Diamond dust

O.K same engine, prop and pipe.
What is faster, a quickie 500 type airframe or a diamond dust?
In other words what would be a more slippery airframe?

Just interested, as we have a plyon racing class that says as long as it has a front intake and side exhaust engine, you can race it. (most cheap 46 type engine, e.g OS 46 AX, Rossi 45) Which of these two engines would be faster with a standard 10x6 prop. Rossi would be fitted with an ENYA exhaust pipe.

Currently competing with a Sonic 500 ARF, but have a dust airframe in a box. Hmmmmmm

Two many variables

Cheers
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Old 09-28-2004, 07:33 AM
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Oodles
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Default RE: Q-500 versus Diamond dust

Got one of each--TT46 pro with mousse can mufflers--DD is faster
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Old 09-28-2004, 10:01 AM
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Default RE: Q-500 versus Diamond dust

The Diamond Dust might be faster in a long, straight pass, but if you'll be turning around poles (which is what pylon racing is) you definitely want the Q500. There is no way that a Diamond Dust can match the Quickie's turning ability.
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Old 09-28-2004, 11:43 AM
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Mike Connor
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Default RE: Q-500 versus Diamond dust

Dispite the delta airfoil losing speed in a turn I would put my money on the Dust. I have flown my Dust against several q-500 planes and it was no contest. Going around the poles at low altitude will require very small control throws and a good pilot.
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Old 09-28-2004, 03:16 PM
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Default RE: Q-500 versus Diamond dust

The Rossi should be MUCH more powerful than the OS, not sure about the Enya pipe you mentioned (Quiet?)

Cheers!
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Old 09-28-2004, 06:19 PM
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Default RE: Q-500 versus Diamond dust

I would say DD too... providing you don't yank it to death . With enough elevator throw you could loose like 50 mph in one 180° turn, but it doesn't have to be like that.

Also, with some extreme engine (not an FX obviously) a DD could become REALLY fast... I don't know how much faster a Q500 plane could go....

Let's say it's toss up...

Interesting to hear the result on this one...
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Old 09-28-2004, 06:40 PM
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Default RE: Q-500 versus Diamond dust

We just had are need for speed this past weekend.The president of are club had a one way pass with a clipped wing Diamond Dust at 180mp,powered with a MVVS FAI 40.The second fastest Dust had a one way pass of a 165mph, with a K@B 40.The Q500's were averaging 135to 140mph, but their turning ability is awesome, they got faster with every turn.Unforunately this is a one year event due to noise restrictions, but what a blast to see these kind of speeds.Chris.
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Old 09-29-2004, 09:58 AM
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Default RE: Q-500 versus Diamond dust

I'm just wondering how you're going to manage a pylon start with a Dust?

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Old 09-30-2004, 10:00 PM
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Default RE: Q-500 versus Diamond dust

A Q-500 with a Nelson or Jett front intake side exhaust engine will be very hard to beat around the pylons. About the only other thing that can beat it is a QM40 ship. Pylon racing planes are a lot like Indycars in that they are designed with excellent turning capabilities. The Diamond Dust would be more like a top fuel dragster
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