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Old Apr 13, 2015, 10:09 PM
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New Stumax 120's

Well we are getting closer
Ran up both Stumax 120's for the first time
Some figures are 120amps, 48.3 volts after 45 seconds of full power
Batteries are the Revo 427 70c's. 12s 11,000mah per side
She tips the scales at 20.6kg , could have made it heaps lighter, by pulling out the lighting system, cooling fans for the ESC's etc
Thrust, well we did a dodgy here, the best we could do. Just used a digital scale against the nose, didn't have anything else. We measured between 15-16kg of thrust which i think is quite acceptable.
And the sweet sound of those smooth Stumax's doing their stuff
Heres some video
And hopefully a test flight followed by lots of flights this weekend
And this is how you can charge 8 packs at once, 40amps, 5 amps a pack, that close to 1c it doesn't matter. Thats my Powerlab8 . Only on one charger too!!!
Chris's Skmaster A10 first runup (0 min 24 sec)


Chris

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Old Apr 13, 2015, 10:18 PM
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Nice job! My buddies turbine one is 34 lbs dry and he lands with over 1/2 a tank of fuel no problem! What did you do about the up thrust for the fans?? Love my PL8 duo, best charger in the market in my opinion!
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Old Apr 13, 2015, 10:28 PM
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No upthrust in the fans. Just straight thu. The exhaust outlets make it appear to have upthrust.
I'm test flying at a jet meet on a full size runway. So i will have plenty of room for takeoffs and landings.

Chris
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Old Apr 13, 2015, 10:49 PM
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Nice! Let us know how it goes!!
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Old Apr 13, 2015, 11:01 PM
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Will definitely have some video. Can't see anything really happening. Done my homework

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Old Apr 13, 2015, 11:04 PM
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Im sure it will go great!! Can't wait for mine, I have the fans, motors should be coming soon just need to decide on ESC's and servos...

What servos does it call for?? Full size all around or are there some mid size in a few spots?
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Old Apr 13, 2015, 11:30 PM
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I'm using mid size Futaba SBus 2 high voltage BLS153 28g 7.6kg @7.4v

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