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

new used Magnum


Old 09-12-2004, 09:04 PM
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Default new used Magnum

today I flew the Magnum... what a hoot!

the previous owner thought it a bit much with a OS .46LA and pipe.

Itis the 1st generation Magnum with the wing/saddle GAP
but the price was right and I had this Dubb Jett sport .50 crying out for an airframe.

I had to add two ouncess of tail weight. Hitek HS-525mg servos on the elevator and ailerons. The trim in flight was a blast, but not ballistic, the fresh engine was run a tad rich till break in is done. Prop was 9x8APC wich will be changed soon.
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Old 09-13-2004, 09:16 AM
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Default RE: new used Magnum

On the SJ-50

Cut back on the prop.... and use the 9x7 for a half dozen flights or so (maybe more like 10 flights) if it is still relatively new. Launch it about 600-800 rpm down from peak. Let it scream....don't worry... ya won't break it.

Then go back to that 9x8 Let me know what it tachs at that point.

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