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World Models Super stunts 60

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Old 02-25-2014, 08:00 AM
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zeroback
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Default World Models Super stunts 60

It's an oldie but a goodie. It was purchased around 2001 along with an AXi 4130/20 when that motor was first available. I have photos of it's build and improvement's over the years. I'll post them as it may provide some ideas on how to handle some of the modification's needed to go from wet to dry.
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Last edited by zeroback; 02-25-2014 at 10:32 PM.
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Old 02-25-2014, 09:43 PM
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Default first power system and rigging

Here the gear that I originally installed including the old Eagle Tree system data recorder.
AXi 4130/20 guts

This motor came from Graves Hobbies in Otown, It was one of the first ones that he sold. Took a bit of figuring at the counter in those days to figure a conversion and pick motor, ESC and battery pack(s) .Once some figuring had been figured, I picked the biggest motor on the shelf so it got easier after that. The ESC that was the correct size was also the only one available the Jeti 77 opto. Ok on to picking batteries. ESC says nine cells, only and largest packs on the shelf, 3S3S of Apogee 2170 10.5 C. I got it together and it was more than I wanted to pilot at the time and so a kind expert took it up and it flew beautifully, best electric conversion he had flown, at the time. On the ground I noticed unloading the 3 packs that the were too hot for my less than experienced knowledge. So I figured right off the bat I need bigger packs. Which fixed one problem (sort of ) but shortly wound up with a burnt winding on my sweet Axi ????. Keep in mind this was they days of the Astro Flight knob charger and winky blinky. The project was shelved for about 6 years until I got around to purchasing a new Axi 4130/20...with a warranty. During installation of the new motor I actually read the instruction and spec sheet with the motor to discover......that just because an ESC is good for 9S doesn't make the motor 9S, ooops. This is actually new hrdw going in as it was born FM The old covering was loosing the clear film, leaving a residue something like a cross between dried up ink and river clay. I found tissue paper and a hot iron blotted the mess off pretty good. what's up with the burnt caps on the ESC? Oh that extra two feet of battery to ESC wire turned out to be the culprit. All the parts I had to create to implement the conversion, although the engine cowl is new. Cant tell here but the wheel are on the small side, one my upcoming upgrades during the retrofit is bigger wheels and tires so I can swing the 16X8E .The Eagle Tree system had broke not too long after I got it back in the air and no longer offered support for the old gizmo. My home made electric adaptor plate. Cut off the legs for mounting the one lunger and made this plate out of a piece of scrap 5/16 aluminum.
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Last edited by zeroback; 02-26-2014 at 09:01 AM.
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Old 02-26-2014, 03:29 PM
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coming together
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Old 03-26-2014, 08:41 AM
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aeajr
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Looks like a nice project. Any updates?
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Old 06-03-2014, 02:36 PM
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Soon to come ...updates that is. The project again was put on hold the last few months. I did have a chance to run it up to WOT with the new True Turn spinner and an APC 16x8E, vibration free (yeah!!) . The spinner that came in the SS60 kit was added after the second (my first at the helm) flight as felt ship would feel better with a bit more nose weight. After downloading the old Eagle Tree data I installed the CPS spinner (Cheap Plastic Stuff) and during the subsequent run up bench test the spinner back plate collapsed at about 3/4 throttle I was off the throttle in less than a heart beat but too late the damage was done. TG the mount did not come loose from the fire wall. The contortion the mount went through was amazing, and it did not fail. But alas the imbalance was enough to warp the AXI's 8mm shaft to the point that the bell hit the stator and broke a magnet. Two flights two motors, eek! I have the first motor with the burnt winding and the second was returned and replaced under the half price motor failure deal although the tech at HL didn't believe the story about the spinner and the shaft flexing and insisted that the motor was under heavy load with too much timing, although they replaced it non the less. My last step before the maiden is to make up a cap pack for the ESC due to the extended leads to reach the two 4S packs wired in series.
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