marblekit's blog View Details
Archive for June, 2015
Posted by marblekit | Jun 29, 2015 @ 09:31 PM | 3,933 Views
I wish they still made this model. It's so easy to fly!!!

Parkzone Corsair F4U-1A (5 min 17 sec)

Posted by marblekit | Jun 24, 2015 @ 07:51 PM | 3,011 Views
Posted by marblekit | Jun 24, 2015 @ 06:25 PM | 2,993 Views
When you have boxes and boxes of parts from crashed planes, you build a Frankenplane!

Frankenplane! (1 min 34 sec)

Posted by marblekit | Jun 22, 2015 @ 12:13 PM | 3,079 Views
My videos of the maiden flights on day one and flights from day two.

It took a few flights to get things right but once there, it flew fantastic!

Wingnetic Clone Maiden Flight (1 min 26 sec)

Wingnetic Clone Day #2 (7 min 52 sec)
...Continue Reading
Posted by marblekit | Jun 21, 2015 @ 04:54 PM | 3,982 Views
One of my flying buddies had a Wingnetic for some time now so when I went to the Hobbyking website to see how much it was I discovered it was only selling out of the International warehouse. There was no way I was paying more for shipping than what the plane cost....

The solution? Build one out of Dollar Tree foam board of course!

My friend let me borrow his plane for a few days...

The first step is to to make a template from an outline of the airframe.
I carefully traced half the airframe onto some paper. I only traced half the airframe so that when I went to create the full airframe it would be completely symmetrical as there would be some minor errors introduced from the tracing process...

...Continue Reading
Posted by marblekit | Jun 08, 2015 @ 11:04 PM | 4,157 Views
This is a Multiplex TwinJet converted from brushed prop motors to EDF. 64mm 8 blade EDF with 2840 4500kv brushless outrunner. 60 amp ESC and 2200mah 3s Lipo.

My motor mount was not very good so eventually on a hard landing it broke off. I secured it with zip ties in version #2... video coming soon!

TwinJet EDF Maiden (3 min 29 sec)

Multiplex EDF TwinJets on a Sunny Day (5 min 13 sec)
...Continue Reading
Posted by marblekit | Jun 08, 2015 @ 01:32 AM | 3,373 Views
I recently acquired an never flown Multiplex Magister that had been sitting in storage for many years. It looked like a partially completed project that got shelved. I finished it up and flew it this past week.

This is a large plane. Over 64 inch wingspan and it is quite heavy.

Multiplex Magister Maiden (3 min 41 sec)

Posted by marblekit | Jun 04, 2015 @ 09:58 PM | 4,079 Views
This is the maiden of my Mini Skywalker "Redux". This is a scratch build made from parts scavenged from crashed/trashed planes. This is why I'm calling this plane "Flying Trash"

The wing is from my long dead Mini Skywalker. I almost threw away the wing but it was in good shape with only a few dents and breaks.

The motor is a Hobby King Donkey ST2204 1550kv that I got from my crashed Reaktor. The 12amp ESC is also from the Reaktor

The 5 gram servos (three) came from my crashed TechOne BF-109.

The rest of the plane is made from Dollar Tree foam board and a wood dowel that comprised the twin boom tail.

AUW is about 250 grams without the battery. I've tried various batteries from 500mah 3s to 1000mah 3s all with good success.

The prop on this maiden is a GWS 7x6 Slow Fly prop.

Mini Skywalker Maiden (2 min 30 sec)

Posted by marblekit | Jun 04, 2015 @ 11:06 AM | 4,276 Views
This is the third flight of my TwinStar clone. I put in a new giant nose wheel and now differential throttle is able to steer the plan on the ground. The nose wheel just casters.

The first flight my CG was still slightly tail heavy but not nearly as bad as previously. I landed the plane and moved the battery forward again and the second flight I finally found the proper CG for this scratch build!

After making a lot of tweaks and fixes, it finally flies pretty well. Happy pilot here!

TwinStar Clone Flight #3 (4 min 29 sec)

Posted by marblekit | Jun 02, 2015 @ 12:07 PM | 3,123 Views
The second flight of my TwinStar scratch build. I changed the props from 8x4 counter-rotating GWS HD props to 9x4.7 Gemfan counter-rotating multi-rotor props. It was not windy at all this day and I really didn't need the extra power.

I moved the battery forward about an inch to make the plane more nose heavy but it was still tail heavy when flying. The CG point was way forward on the wing... about an inch back from the leading edge!

It was still trying to roll to the left so I decided to land it and see what was going on. Turns out the right flap was warped and causing extra lift on the right wing.

On the landing I broke the nose gear for good and a wheel came off. I'll need to get a better nose wheel for the next flight!

TwinStar Clone Flight #2 (1 min 17 sec)

Posted by marblekit | Jun 02, 2015 @ 02:34 AM | 3,780 Views
This is the maiden flight of my scratch built TwinStar clone. This was not a good day to maiden a new plane. Way too windy! As I taxi for takeoff the plane immediately wants to roll to the left. This is not due to torque roll as the motors are counter-rotating.

I have to give it a lot of right aileron to counter this left roll. As soon as it gets about 10 feet up I immediate sense I have little control over the plane. It is obviously very tail heavy. It takes almost all I have just to keep the plane in the and not crash it. I desperately try to maneuver the plane for a landing.

The landing is very hard and I bent back the nose gear. I will have to make some repairs before trying another flight. Hopefully the next time it will not be as windy!

TwinStar Clone Maiden (1 min 51 sec)