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

fourstroke speed?

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Old 07-10-2004, 10:08 AM
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Laurens3Dwannabe
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Default fourstroke speed?

How fast would a fourstroke powered plane go? There are sound emission restrictions on our field, and I don't want to go electric. I want to spend about 400 euro on a plane.
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Old 07-10-2004, 10:17 AM
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Default RE: fourstroke speed?

400 []

A half decent engine like the YS 110 is going to cost around 350... that leaves 50 for the plane... you can get a servo for that...
Even the cheapest four strokes around are still going to cost around 150... that leaves 250 for the plane... still not enough...

Start saving money...
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Old 07-10-2004, 10:22 AM
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Default RE: fourstroke speed?

ok, engine not counted with that 400
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Old 07-10-2004, 10:23 AM
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Default RE: fourstroke speed?

So I need a pumped engine?
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Old 07-10-2004, 03:45 PM
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Default RE: fourstroke speed?

Of course you don't.

But the Yamada's are simple the most powerful four strokes available... power in a small package... that's what you need for speed. They come at a price though...

Do you have a engine already?
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Old 07-10-2004, 03:47 PM
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Default RE: fourstroke speed?

I only have a OS fs 40 surpass. I was thinking about a Magnum R or that delta.

BTW do you know Tom Verstappen?
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Old 07-11-2004, 03:27 PM
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Default RE: fourstroke speed?

Tigershark with Saito 100?
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Old 07-11-2004, 03:32 PM
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Default RE: fourstroke speed?

give a magnum R to a os 40 surpass is give caviar to a pig !!! I am used to noise restrictions, tell me what noise you are allowed to do and I will tell you what engine for * magnum R
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Old 07-11-2004, 03:33 PM
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Default RE: fourstroke speed?

No, not my OS in the Tigershark, but a saito 100.
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Old 07-11-2004, 03:34 PM
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Default RE: fourstroke speed?

a saito 100 in a magnum is a too heavy engine for those small wings !

and I KNOW tom verstapen !!!!!!

I have been in contact with him when he was collecting infos about spit
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Old 07-11-2004, 03:35 PM
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Default RE: fourstroke speed?

79 Db for a fourstroke.
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Old 07-11-2004, 03:38 PM
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Default RE: fourstroke speed?

this combo is in the noise restrictions you call

my whip
with quiet engine


fast enough ?

http://perso.wanadoo.fr/rcu-stuff/Sa...ALawnMower.wmv

by the way the four stroke are not so "quiet" regarding 2 strokes (with standard mufflers) the noise is different, it seems to be quieter, but is not
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