Pete's  Planes

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SIAI-Marchetti SM 74

Update           November  2007

Now fitted with brushless outrunners [Tower pro 2408-21T-3A] with 6.5 x 4 props..........88oz...........21oz/sq ft

Original notes

First flight 2004........Span 73".......96 oz.........23 oz/sq ft........4 Speed 400/6V, geared 2.5/1.0......props 7 x 6 [cut down from Master 8 x 6]........3S Lipos, 3700 mAh......mostly balsa........controls on throttle, aileron, elevator & rudder...

As first tested, it had a smaller wing, and NMH cells. Flight was rather brief, and somewhat sluggish. A four inch extension to each wingtip greatly improved its flying manners. Lipo cells gave a weight reduction and doubled the flight duration. No other change was required to the power train, as the 3S lipos have a similar voltage to the 10 NMH.