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Rebuild Of The ParkZone T-28 W/ Crash Video...

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Old 09-07-2013, 02:49 AM
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Boostedpower
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Default Rebuild Of The ParkZone T-28 W/ Crash Video...

Hey guys, new to online RC threads, but that being said I had a little misfortune while trying to get some good OnBoard footage from the top of the rudder angle, anyways you can watch for yourself, but I did a nice low pass (girlfriend is recording) and after that I go up to do a barrel roll (there is another body of water so I thought it would look cool) and just over half way though the canopy comes off!! But the worst was yet to come. It hit the Horizontal stab ripping it off! Not only that but it was the side with the control arm. watch the video for what happens next. (http://www.youtube.com/watch?v=52H7kqeLoAs) If you listen closely on the low pass you can hear the plastic coating they use dragging. This being the second ParkZone T-28 I have had elevator issues (lack of support and thickness) I decided to try an fix it, which required boiling the fuselage (http://youtu.be/aWry69x2xEs ) I then used some 20min epoxy, Pliers (to break to size), and Popsicle sticks to fix the landing gear, which originally broke from this ( http://www.youtube.com/watch?v=y_cpDlhPJ94 from using an older heavy camcorder) and after repaired without Popsicle sticks this happened after one touch and go.... ( http://www.youtube.com/watch?v=TKqoXBCapDk ) ........

So after the crash into the lake I am left with this....

1. Fuselage/Motor Mount/ Front Landing Gear...



155 by boostedpower, on Flickr


154 by boostedpower, on Flickr







And here is the "Official" cause of the crash....



160 by boostedpower, on Flickr

Last edited by Boostedpower; 09-07-2013 at 04:17 AM.
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Old 09-07-2013, 03:08 AM
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So Here is what I did to fix it, sorry, no more videos...

1. Went to HomeDepot and got some solid foam board, Then went to the work shop and got some shaping tools (a foam cutter would have been ideal, however I did not have one handy)

368 by boostedpower, on Flickr


2. Traced, with a forgiving margin and used the full size razor blade to cut, this took some time. But ended up with this. -->


369 by boostedpower, on Flickr


370 by boostedpower, on Flickr


372 by boostedpower, on Flickr

3. Then Tons of sanding! from a flat hand sander ($3) ---> (almost not yet!) --->




402 by boostedpower, on Flickr


3. THEN URIKIA!--->

406 by boostedpower, on Flickr




BUT! Only the front half, and to fit the new elevator control surface It's going to require a little modification (cutting away) to the fuselage.--->

406 by boostedpower, on Flickr


405 by boostedpower, on Flickr

Last edited by Boostedpower; 09-07-2013 at 05:14 AM.
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Old 09-07-2013, 03:25 AM
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Now that the the front half of the stabilizer is in place. Here is a Comparison of thickness from the new modified one(pink) compared to the stock one(white) --->


408 by boostedpower, on Flickr



425 by boostedpower, on Flickr



435 by boostedpower, on Flickr



Then I cut away a little bit of each side so make room for the newer, thicker Control surface...


442 by boostedpower, on Flickr



Making room for everything to come together (rough draft, no hinges yet)...


444 by boostedpower, on Flickr


447 by boostedpower, on Flickr




Then Time For Hinges!


459 by boostedpower, on Flickr


460 by boostedpower, on Flickr



Then, The inevitable happened... A piece of foam that wasn't supposed to break off, Did....


462 by boostedpower, on Flickr






A little 20min Epoxy later....


463 by boostedpower, on Flickr


465 by boostedpower, on Flickr
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Old 09-07-2013, 03:32 AM
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On the plane...


467 by boostedpower, on Flickr

put a little Scotch tape on as support for the hinges, added a few slits with a razor after to improve movement..


469 by boostedpower, on Flickr


474 by boostedpower, on Flickr


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For test purposes...


491 by boostedpower, on Flickr




And paint for another day, want to see how well this works and bring some thin sandpaper for parts that are rubbing before paint! Let me know what you guys think!
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Old 09-07-2013, 04:02 AM
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And as far as the landing gear failure, fix, crash, and then rebuild, I have done this for reinforcement so that NEVER happens again, because grass and apparently tracks with grip will tear the landing gear to shreds...


483 by boostedpower, on Flickr

Popsicle sticks broken with needle nose pliers and two seprate coats of 20min Epoxy... First coat is to fill cracks, second is to fill and coat.... *Note: I removed the front landing gear and top piece secured buy two screws to keep any moving parts from seizing*


478 by boostedpower, on Flickr



480 by boostedpower, on Flickr



484 by boostedpower, on Flickr


This One Came Out UGLYYYY!! But it is Solid as they come!


479 by boostedpower, on Flickr



Undertail...


481 by boostedpower, on Flickr

Last edited by Boostedpower; 09-07-2013 at 05:17 AM.
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