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

F20 tigershark ...low pass

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Old 08-29-2009, 03:27 PM
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the smasher
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Default F20 tigershark ...low pass

HI brothers

here is my F20 tigershark on youtube

http://www.youtube.com/watch?v=oUMu00Vj12U

I wanna you to advice me to get it faster , either by changing the engine or any other modifications
as to know , it has a 51G supertiger engine with a tuned pipe of Macs

running on a 10% byron fuel + 10x 7 prop + 2.4 GHz futaba 6ch system

thanks in advance
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Old 09-08-2009, 10:18 AM
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Default RE: F20 tigershark ...low pass

Try a 10-6 or 10-5 prop on it to achieve a higher RPM. The ST G-51 is rated at 1.48hp @15,500 rpm. A 10-7 prop may be too much for it.

Start with the recommended prop (10-6) and the original muffler and take an rpm reading. If the engine is new you may need to fly it for a while to make sure it's broken in. You should be in the 11k - 12k rpm range. If not, go to a 10-5 prop. Once you are satisfied, then install the tuned pipe and adjust the length until reaching a max rpm. The tuned pipe should boost rpm around 1k rpm or so.

If this is still not fast enough for you, then it's time for a new engine. OS 55AX may be worth a try.

Good Luck!
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Old 09-08-2009, 02:10 PM
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Default RE: F20 tigershark ...low pass

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Old 09-08-2009, 06:02 PM
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Default RE: F20 tigershark ...low pass

That's too bad. How can you tell?
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Old 09-10-2009, 04:19 PM
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Default RE: F20 tigershark ...low pass

OS 55AX may be worth a try.
Mwhuahahahaha
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