Thread: Discussion 69MM SR-71 Blackbird
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Old Mar 26, 2011, 09:56 PM
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Maple Valley, WA
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69MM SR-71 Blackbird

Grabbed the ubiquitous 64mm airframe from Hobby King, didn't bother installing the retracts since my club's field is grass, put two 69mm E-flite Delta V 15 fans with the 15 motors in her (after some carving out of the motor mount area) with two E-flite 60amp ESCs for over 1,300 watts. Running a 4s 4000 45C battery.

Today was the maiden and holy CRAP what a rocket!

I didn't have a gun but I would guess she was WOT early in the fresh battery phase at 105-110 mph...This is my fourth SR-71 but the first one where it was an airframe and given a worthy power plant. Now that I have the CG, throws and trim where I want them I can't wait for the next flight. Anyone else putting larger fans and motors in their 64mm SR-71?
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