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Old Jul 30, 2015, 09:15 AM
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Flew the SR71 yesterday, great takeoff, flight was going well, but just before the timer went off I got a low voltage hit, motors started sagging...called emergency landing, made a very short turn around to come in over the runway upwind.....it was going to over-run the runway so I reduced what little power I had and it immediately started the nose high stall....pushed in some down elevator, came back up on the power......

IT DID THE PERTTIEST SUMMERSAULT AND BACK FLIP YOU HAVE EVERY SEEN and then did a plop down 3 point landing with no damage, no bent landing gear, no broken neck.....AND it is on video.

I will see if I can figure out how to upload this flight when my buddy gets the video to me...

I think I got away with something here......new aerobatic landing perhaps.... ;-))
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Old Aug 03, 2015, 07:38 PM
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Quote:
Originally Posted by RCS1313 View Post
Flew the SR71 yesterday, great takeoff, flight was going well, but just before the timer went off I got a low voltage hit, motors started sagging...called emergency landing, made a very short turn around to come in over the runway upwind.....it was going to over-run the runway so I reduced what little power I had and it immediately started the nose high stall....pushed in some down elevator, came back up on the power......

IT DID THE PERTTIEST SUMMERSAULT AND BACK FLIP YOU HAVE EVERY SEEN and then did a plop down 3 point landing with no damage, no bent landing gear, no broken neck.....AND it is on video.

I will see if I can figure out how to upload this flight when my buddy gets the video to me...

I think I got away with something here......new aerobatic landing perhaps.... ;-))
Here a link to the video of RCS's miraculous landing. I scored the back flip a 9.5 but probably should have given a 10 for style.

SR71 Miraculous Landing 7 28 15 (1 min 14 sec)
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Old Aug 03, 2015, 09:25 PM
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LOL...Been there my friend!
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Old Aug 03, 2015, 09:27 PM
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That was intentional
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Old Aug 07, 2015, 12:10 AM
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Well if it wasn't it should have been. It sure saved me a bunch of repair work. I was happy my friend, Ron Tinchure ( Laserdude ) was there to get a pretty good video of it...

The battery only registered 7% left ....that is cutting it a bit fine! After throwing it into the fridge and cooling it down, it tested again at 28% capacity. Think I had better check the IR reading with a meter. I would bet a cell is going kaput in the IR area even tho the voltage/ balance readings seem to be ok.
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Old Aug 07, 2015, 05:19 AM
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Living on the edge!! And with the Habu no less! #playingwithfire

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Old Aug 13, 2015, 12:42 AM
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Awesome!! Glad she survived!
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Old Aug 18, 2015, 01:20 PM
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I am wondering if it's possible to fly this bird on 3 cell to keep the weight down but still use say 4800Kv or higher motors to keep her grooving in the power department?
My case being my Dynam A-10 and my GWS ME-262 both are twins , both use a 2200 mha 35c battery and both get about 4 minutes of fly time.. The SR-71 is lighter than the Dynam A-10 so I am thinking lighter is better.. thoughts anybody?
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Old Aug 18, 2015, 08:13 PM
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I flew the LX verison on twin 3S like you mention with 4800 KV motors.
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Old Aug 18, 2015, 09:54 PM
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I flew the LX verison on twin 3S like you mention with 4800 KV motors.
me too. It did well.
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Old Sep 30, 2015, 09:15 PM
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But I am not talking about using twin 3 cell, just a single battery. like i said before my Dynam A-10 used a single 2200 3s 35c battery and so does my GWS ME-262(4300kv) the ME-262 is lighter than my A-10 and my A-10 is heavier than my SR-71..
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Old Oct 12, 2015, 05:34 PM
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OK I tried a new comb for battery, A Zippy 2700 60c and after the flight the battery was barely warm to my surprise. it's roughly the same size as the 2650 Turnigy Nanotech battery I use which works fine but I am glad I found another battery to fit this bird.. Today here in Southern Ohio it's been windy with 9-14 mph winds. I was lucky to hit the winds at 5mph earlier but two flights on the Blackbird and I am happy.
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