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Alpha20 · 01-03-2008, 05:45 PM

I am currently building an SD 33% Extra, but have not yet decided the engine. I have a 3W 70i, but doubt if it will hold for 3D (But maybe for IMAC?). A boxer-engine will give less vibration also..
I think dual servos pr aileron is necessary on this one, because of the size. I thought about using only one servo and place it in center of the wing, but the aileron is too long and soft.

The servohorns from SD are no good - ball links neither. Went for SWB. Rudder servotray from SWB. Batshare/switches/powerbox/killswitch from smart-fly. Fromeco li-ion batteries, Fromeco regulators. Hope to have it finished in a week or two.

Does anyone have a link to a vid of this plane??

01-03-2008, 05:45 PM	#8
Alpha20 Leicht fliegt gut! Join Date: Jan 2006 Posts: 168	Re: SD Models 33% Extra 260 I am currently building an SD 33% Extra, but have not yet decided the engine. I have a 3W 70i, but doubt if it will hold for 3D (But maybe for IMAC?). A boxer-engine will give less vibration also.. I think dual servos pr aileron is necessary on this one, because of the size. I thought about using only one servo and place it in center of the wing, but the aileron is too long and soft. The servohorns from SD are no good - ball links neither. Went for SWB. Rudder servotray from SWB. Batshare/switches/powerbox/killswitch from smart-fly. Fromeco li-ion batteries, Fromeco regulators. Hope to have it finished in a week or two. Does anyone have a link to a vid of this plane??