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

Set up info on Mach Racer?

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Old 03-23-2008, 09:41 PM
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Duane-RCU
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Default Set up info on Mach Racer?

I bought one at the swap meet, St .40/pipe, Rx, servos, batt, ready to fly no Tx.. $100.00...I need info on CG, and control throws. I guess this isn't a real fast delta from what I've heard? I didn't get the manual with it so any help/tips are greatly appreciated.
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Old 03-23-2008, 10:02 PM
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Default RE: Set up info on Mach Racer?


ORIGINAL: Duane-RCU

I bought one at the swap meet, St .40/pipe, Rx, servos, batt, ready to fly no Tx.. $100.00...I need info on CG, and control throws. I guess this isn't a real fast delta from what I've heard? I didn't get the manual with it so any help/tips are greatly appreciated.
8" (203mm) back from the leading edge of the wing, measured at the sides of the radio compartment.

The manual is available for download at
http://www.hobbypeople.net/gallery/123780.asp
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Old 03-24-2008, 03:43 PM
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Default RE: Set up info on Mach Racer?

I found it Mike! Thanks for the link.
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Old 03-27-2008, 10:19 PM
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Default RE: Set up info on Mach Racer?

One question for anyone who has one. The cut out for the engine has an extreme right thrust in it. It is not the factory cut. Do these have a lot of right thrust? The former owner cut it, and I think it might be wrong. I'm having to fix the front mounts, the cut out is so wide it goes into the bolt holes. They are just half circles and I'm afraid it may not hold.
I did fly it the way it came, I've never really messed with tuned pipes before, but this thing ran terrible! I think the exit hole is too big, plus it had a 10x8 prop. It would not get much rpm. The guy told me it needed a Perry pump. I'm swapping my ST .45 on it, I know it was almost 18,000 rpm with a Jett muffler. It hauled on my Viper!
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