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

Speed on a Mach Racer with 46AX 9x8 APC

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Old 02-18-2006, 01:12 PM
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Dealspeed
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Default Speed on a Mach Racer with 46AX 9x8 APC

And a tower tuned Pipe??
This is my first speed plane so I have no Idea what to expect.
Fastest plane Iv had did maybe 70
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Old 02-18-2006, 07:21 PM
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dancanfly3d
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Default RE: Speed on a Mach Racer with 46AX 9x8 APC

I put a o. s 50 with stock muffler on mine also changed vert stabs to a single one with rudder ...first speed plane for me to . fastest thing i had befor was a stinger 10 with a o.s 40 and 10x6 prop and i thought that was fast.. huh cant wait to get my tuned pipe in the mail next week... Oyeh make shur you seal the hinge line
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Old 02-18-2006, 07:28 PM
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Default RE: Speed on a Mach Racer with 46AX 9x8 APC

mine had to be going over 150 mph after steep vert dive pulling out just right above the deck and you can do a knife edges with the rudder on it like mine
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Old 02-19-2006, 12:13 PM
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Default RE: Speed on a Mach Racer with 46AX 9x8 APC

I doubt that the plane can do 150 mph in a dive even ... the speed of this plane is in the region of only 90 mph max on level flight.

Deal - your prop with the pipe will give you about 15K RPM or so, the pitch speed for that will be about 110 mph ... deduct about 20% easily for plane's inefficiency etc ... so 80 mph is not far at all.
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