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Archive for December, 2016
Posted by Old_Pilot | Dec 16, 2016 @ 09:34 AM | 6,837 Views
She's a cross between my StealthStream, the Concorde, and a Vulcan........Flight Ready......no ballast required to get the CG.....(2) 70mm Freewing 6 bladed fans, Freewing 2836-3300 kV motors, 65 Amp ESC's, 2600 mah 30C 4S batt's, TowerPro MG946R Servos, Lemon 6 channel Featherlite DSMX/DSM2 receiver, McDonald's large coffee cup nacelles.....3.6lbs All up weight...close to 8 lbs of thrust

Results of maiden: Complete failure boys......I got the CG way too far back.......did something wrong in the balance calc's, just not sure what yet.......jumped off the ground like a grasshopper and went straight up....no amount of down helped.......I suspected that the fans were too far back, but forged ahead anyway......back to the drawing board.

Update: FOUND IT !.....when I calculated the CG, I forgot to set the CG at 25% of the mean aerodynamic chord...calculator defaults to 30%......which means the CG is about 2 1/2" too far back.....in the words of Jeff Dunham's Walter...Dumb ass !
Posted by Old_Pilot | Dec 01, 2016 @ 07:13 AM | 6,899 Views
Had to replace a combat wing after a mid air...we hit so hard that my motor was broken...got her back to the bench just in time for her to burst into flames.....so here's the new one

Flight Ready: GForce 3542 1250 kV, Tower Pro MG90S, Lemon 6 channel, 50 AMP ESC, 2600 mah 30C 4S.....gonna test fly her with a 9x4.5.....combat with a 9x6.....

Update: maiden flight...
Delta Combat (2 min 34 sec)