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Old Thunder Tiger 15, model 7703 - could be +30 years old

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Old 10-11-2008, 03:39 AM
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Lille-bror
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Default Old Thunder Tiger 15, model 7703 - could be +30 years old

Fuel: 0% nitro, 12,5% castor and 12,5% AeroSynth2,
OS#3 plug.
APC 8/4 prop.
Weather 11 degrees Celsius, rainy, see level.

With stock muffler:
12300 RPM, 3700 idle.

With old pipe from a Carlsson 1/8 on-road car from approx 1982 (not a tuned pipe, see picture). The length didn't make any different in the RPM's (tried 8 to 16 centimeters from the engine to the start of the pipe).
Oh my, what a crispy sound

13300 RPM, 3700 idle.

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Old 10-11-2008, 08:28 AM
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Default RE: Old Thunder Tiger 15, model 7703

nice! i love vintage engines..

Do you have pictures of this?
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Old 10-11-2008, 09:09 AM
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Lille-bror
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Default RE: Old Thunder Tiger 15, model 7703

Thanks :-)

http://www.rcuniverse.com/forum/m_79...tm.htm#7973024
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Old 10-18-2008, 08:21 AM
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Default RE: Old Thunder Tiger 15, model 7703

... a little video

http://www.youtube.com/watch?v=017YNmcY88g
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Old 10-18-2008, 03:43 PM
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Default RE: Old Thunder Tiger 15, model 7703

I like the video.
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