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

Formula for fast cheap plane

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Old 12-08-2006, 06:47 PM
  #1  
juanpipito
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Default Formula for fast cheap plane

this is the recipe, I tested it, The little ******* flies behind turbine jets, buy a "hobby poeple.net" texan, the small one I think the price is $90 incredible but true. Its originally designed for a .15 to .25 but because the texan has a wide fuselage you can fit in a .40 easily. thenk of course put in a 40 size engine, I has a os. 40 fx. Its going to be a little nose heavy so make sure everything goes as far back as possible. and there you have it.

man if you fly this youll be impressed. the prop should be a 9x7. by the way no one near south florida please, mine is already the show stopper.
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Old 12-08-2006, 06:54 PM
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Default RE: Formula for fast cheap plane

Now THAT'S funny!

Did you leave the engine cowl on so it could cup as much wind as possible?

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Old 12-08-2006, 08:54 PM
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Default RE: Formula for fast cheap plane


ORIGINAL: juanpipito

this is the recipe, I tested it, The little ******* flies behind turbine jets,

Lots of things fly behind turbine jets, even kadet's, Gentle Lady gliders, hell, a paper airplane will fly behind a turbine jet Fast is something that will stay ahead of turbine jets (assuming you're talking a fast turbine jet too hehehe)
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Old 12-10-2006, 12:16 AM
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Default RE: Formula for fast cheap plane

A friend of mine and I just got a pair of these. I'm going to put an os 25 max with a tuned pipe on mine.
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Old 12-13-2006, 08:32 AM
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Default RE: Formula for fast cheap plane

How fast is fast? I would love to know approx. what speed that combo is reaching.
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Old 12-13-2006, 09:06 AM
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Default RE: Formula for fast cheap plane

I would also consider trying a hot high revving .25 Not a sport engine but something from a race breed. The 46FX is a good engine but you would get more out of a hot .25 I think. The more rpm's and pitch you can get the faster it will go.

I love the Texan always thought it was a good looking plane too.
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Old 12-13-2006, 03:48 PM
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Default RE: Formula for fast cheap plane

juan, can u post a pic & a link?

thnx
V.
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Old 12-13-2006, 04:39 PM
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juanpipito
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Default RE: Formula for fast cheap plane

thats a good combination perhaps it will be faster than mine, say, who knows
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Old 12-13-2006, 04:40 PM
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Default RE: Formula for fast cheap plane

Id say Im at 135-140 right now. for a plane that small it looks pretty fast in the air.
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Old 12-13-2006, 06:21 PM
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Default RE: Formula for fast cheap plane

I got 210 out of a stock diamond dust with a worn-out .32...

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Old 12-19-2006, 04:21 PM
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Default RE: Formula for fast cheap plane

OK FINE NOT FAST ENOUGH FOR SPEED ADDICTS, Im replacing the engine this week, will test iit on the weekend, new engine is a JETT .40 will provide terst reults after the weekend.

happy holidays to all.
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Old 12-19-2006, 09:35 PM
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Default RE: Formula for fast cheap plane

I don't think it has anything to do with not fast enough... I think it is rather a case of "way too fast"...
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Old 01-04-2007, 10:45 AM
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juanpipito
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Default RE: Formula for fast cheap plane

this is what my texan has turned out to be after clipping the wings and rethiking the aerodynamics.

will be flying it this weekend,
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Old 01-05-2007, 01:55 PM
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Default RE: Formula for fast cheap plane

it comes on sale on the 12th if i remember right for $39.00 in the hobbypeople catalog i got in the mail. makes me wanna try it out heh
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Old 01-09-2007, 10:06 AM
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Default RE: Formula for fast cheap plane

Just try this..4mm coro(2usd$)+2nd hand leo32(20usd$)=22usd$



I think it's fast enough for this price.

http://tw.video.yahoo.com/video/play...o%3Fei%3DUTF-8
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Old 01-09-2007, 11:57 AM
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Default RE: Formula for fast cheap plane

If that does 140 for real I'll be most impressed!

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Old 01-09-2007, 09:18 PM
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Default RE: Formula for fast cheap plane

I'll bet that plane moves along pretty good. Instead of guessing about a planes' speed, it doesn't take much effort to find out how fast it really is going. All it takes is 2 helpers with cell phones, a stop watch and whatever fixed distance you choose. I use a 1/16th of a mile timing zone. The repeated clockings are fairly consistant with the mathematical guess work....there haven't been any "miracle runs" clocked so far by us.
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Old 01-09-2007, 11:50 PM
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Default RE: Formula for fast cheap plane

I would say the cheapest way to get speed would be a predator or viper with a tower hobbies .46 on it. To go faster, design a cowling to smooth the airflow over and around the engine.
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Old 01-10-2007, 05:46 PM
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Default RE: Formula for fast cheap plane

Tim, I ran your passes through Spectroscope and the WaveOSScope and the top speed that they both agree on was 139 mph or 223.7 kph.

Pretty fast for 22 bucks.
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Old 01-11-2007, 09:34 AM
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Default RE: Formula for fast cheap plane

ORIGINAL: Clean

Tim, I ran your passes through Spectroscope and the WaveOSScope and the top speed that they both agree on was 139 mph or 223.7 kph.

Pretty fast for 22 bucks.
No kidding! Maybe that AT-6 does 140 after all.. although those tires look a bit draggy, where's the pylon wheels?
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Old 02-28-2007, 10:35 AM
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Default RE: Formula for fast cheap plane

Here's another way. Modify 400 electric powered to .15 glow.Weight after modification is 17.36oz(original16.6oz).It's coming from this one.. http://www.align.com.tw/shop/product...roducts_id=554
Or same as this http://www.rcuniverse.com/magazine/a...article_id=393





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Old 02-28-2007, 11:55 PM
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Default RE: Formula for fast cheap plane

want really high rpms try a Q 40 nelson. bad thing is its not r/c its start at high rpm and let the thing go. pylon racers use this engine and getting speeds of 250mph
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Old 03-01-2007, 09:55 AM
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Default RE: Formula for fast cheap plane

ORIGINAL: dragonfly24_24

want really high rpms try a Q 40 nelson. bad thing is its not r/c its start at high rpm and let the thing go. pylon racers use this engine and getting speeds of 250mph
Convince me anyone is doing 250mph with one of these, versus claiming they are doing 250. They might be heckfire fast, but 250 I think not.

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Old 03-01-2007, 10:12 AM
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Default RE: Formula for fast cheap plane


ORIGINAL: MJD

Convince me anyone is doing 250mph with one of these, versus claiming they are doing 250. They might be heckfire fast, but 250 I think not.

MJD
MJD,

You're not adding in the 30mph tailwind or the 1000ft dive first...


Mark
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Old 03-02-2007, 03:30 AM
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ORIGINAL: MJD

Convince me anyone is doing 250mph with one of these, versus claiming they are doing 250. They might be heckfire fast, but 250 I think not.

MJD

yeah I've always noticed the planes that are claimed to be 200+ are lucky of they hit a buck fifty through the trap, seams a few folks eyeballs are out of calibration i couldn't help but laugh when i made a low pass and heard someone comment about my Byron F-16 once saying "an easy 200 mph".......... even with the OS91VR it was lucky to hit 140 in a dive.

kc
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